Hi, we have heard alot about ivermectin and fenbendazole, also against lungcancer, my mom is in stage 4. Also in the bones. Here in our country not so much people heard about it.
The big question is for us is it possible to give her that because she uses bloodthinner 2 times a Day. I have read with ivermectin it is dangerous. She can’t stop with bloodthinner because she was almost gone with stopping bloodthinner. Is it possible to give fenbendazole with bloodthinner?
Hello, Rianne, thank you for a great question!
Fenbendazole itself is not a blood thinner. One important detail: fenbendazole is often used together with vitamin E, and vitamin E does have blood-thinning effects. If your mom is on anticoagulants, this needs to be taken into account and vitamin E may need to be avoided or used very cautiously. Stage 4 disease is complex and responses are very individual.
My freinds son (30 years old) has brain cancer ten years ago. He has had operations to remove the cancer, but it has come back recently. I’m not sure what they are going to do next, but can he start using fenbendazole during any (or type) of medical treatments.
Hello Stephen, thank you for your question.
Fenbendazole is commonly used by some people as a supportive option alongside conventional treatment, and in many cases it can be integrated thoughtfully with medical care. The key factor is timing. It is generally recommended to pause fenbendazole two days before chemotherapy or radiotherapy, avoid it during treatment days, and resume two days after treatment ends. This allows active treatments to proceed without added metabolic stress.
Outside of chemotherapy or radiotherapy windows, fenbendazole is often used during rest or recovery periods, when the body has greater capacity to tolerate supportive approaches. Many people choose to start gently and adjust frequency based on individual tolerance.
Even in complex situations such as brain tumors, a careful, step-by-step approach can be taken.
We hope this brings some reassurance and clarity, and we wish your friend’s son strength and the best possible outcome.
on jan 2020 had melanoma stage 4. had 2 major surgeries.and 10 months of keytruda i was taking curcumin and a few vitamins with i. was cancer free until july 2024.i had a metastatic melanoma 11mm in my left lung had heard about fenben started taking it immediately 222mg 6 days a week. started opdivo and yervoy immunotherapy 2 times and my skln went crazy they stopped the treatment and wanted me to have surgery or radiation i said no i am 78 years old i asked wait to next 3 month pet scam. nodule went down to 5mm i asked again for next 3 month pet scam went down to 0. no cancer has showed up since. thank God and you wonderful fokes i have been taking fenben 222mg 3 days a week with curcumin 2 times every day. but it is rising my ast alt liver over 150 and goes back down after 2 to 3 weeks. would it work if i try 1 or 2 fenben a week or what do you think thank you all so much
Dear Jimmy,
Thank you for sharing your experience with us, and we are glad to hear about the continued positive scan results.
Temporary elevations in AST and ALT are sometimes reported with fenbendazole use. The fact that your values return to normal within two to three weeks suggests reversible liver stress rather than ongoing injury.
A reasonable first step is to add dedicated liver support, such as milk thistle or TUDCA, while continuing your current reduced schedule. Many people find this sufficient to stabilize liver enzymes. If enzyme elevations persist despite liver support, then reducing the number of fenbendazole days per week to two or three is worth considering. Fenbendazole can still be used as a maintenance option at lower frequency, especially when there is no visible disease on imaging.
The aim is to use the lowest effective frequency that your body tolerates well over the long term. We wish you continued stability and good health.
Hello, I am so glad I found this website with much more detailed information than any other source. For four months, in addition to having Keytruda immunotherapy infusions every 3 weeks and taking Inlyta 3 mg targeted therapy tablets twice a day, we are using 60 mg (1.0 mg/kg of body weight) Ivermectin an hour before breakfast and 444 mg Fenbendazole with breakfast that includes fat; along with supplements such as milk thistle, curcumin, etc. Having a very annoying side effect of urethral area irritation with severe itching. Thought it was the Inlyta, so paused it with doctor’s permission, and it’s still happening. I am suspecting either the Ivermectin or the Fenbendazole. What are your thoughts.
Hello, Jean. Thank you for your detailed message. We are glad the information here has been helpful.
Urethral irritation and itching are not commonly reported with Fenbendazole itself, but individual sensitivity is always possible. Ivermectin, on the other hand, can occasionally contribute to skin or mucosal irritation, especially when taken daily at higher doses. Since pausing Inlyta did not resolve the symptoms, the most practical way to identify the source is to pause one variable at a time for several days and observe whether the irritation changes. This helps distinguish whether the reaction is related to Ivermectin, Fenbendazole, or the combination.
Staying well-hydrated and adding something soothing like D-mannose or cranberry extract can help calm the urinary tract.
Hope it settles down soon for you. God bless.
Hi, I am 46 and would like to do a parasite cleanse but am not comfortable yet with dosages and frequency using the horse paste. I have bought Iver and Fenben and wish to cleanse with these two for the full 3 stage cycle. After the cleanse I would like to continue taking as a maintenance dose. Can you please help me with the protocol using the horse dosages? Additional support to take during the cleanse? I take 2 different antidepressant/anxiety meds and allergy med daily. Approx 285 lbs. Thank you
Hello, Aimee, thank you for your message.
We completely understand wanting clarity before starting any cleanse, especially when you already take daily medications.
Since you are using a parasite-cleanse protocol, most 285lbs people generally fall into the higher weight range, so the approximate starting point many use is the standard 222 mg Fenbendazole dose, with the option to increase to 444 mg if they feel well. The key is to start low, monitor how you feel, and only increase gradually.
Support during the cleanse:
Milk thistle, Electrolytes + hydration ,Probiotics, Magnesium ,Vitamin C, Light fiber to help with die-off
I am confused about dosage levels when I see many of the posts under the Makis website showing dosages of 4-5 times what is recommended here. Does more help or is it harmful or just unnecessary?
Hello Jeff,
Thank you for your question. The higher dosage levels you may see on various websites represent individual choices rather than evidence-based guidance. Increasing the amount four to five times above standard recommendations does not provide proven additional benefit and may increase the likelihood of adverse effects.
Our guidelines are designed to offer a balanced approach that prioritizes safety, tolerability, and consistent use over time. For most individuals, exceeding the recommended range is not necessary and may place unnecessary strain on the body, particularly the liver and gastrointestinal system.
We advise following a steady, moderate protocol and adjusting only by monitoring your overall well-being. More is not always better; in most cases, higher dosing is simply unnecessary.
If you have further questions, we are here to help.
on jan.2020 they found melanoma stage 4 on right arm.removed large part of arm mussel and all lymph nodes on right arm pit.took 10 months of keytruda,.and took curcumin and several several other herbs and vitamins,no cancer showed up on pe t scans until jan. 2024.a 12mm metastatic melanoma nodule in left lung.started immunotherapy with opdivo and yervoy. they wanted me to have surgery or radiation.i am 78 years old said no.and was immediately taking fenben. one immunotherapy and my skin went crazy they stopped therapy they still wanted surgery e i asked to wait to next pet scan and nodule went down to 5mm next pet scan went to zero.thank God and you people.am taking fenben 222mg to keep cancer away but it is raising ast and alt over 100 after 2 weeks would it be ok to lower 1 or 2 a week or take 2 or 3 week breaks
First of all, we are so happy to hear that your scan results were so positive! Back to the question; protocol breaks can indeed lower your liver enzymes. We would recommend taking your dose at least 2 days a week if your levels are elevated more often. We would also like to mention that you should try taking liver support supplements such as milk thistle, silymarin, alpha lipoic acid, curcumin, berberine, etc.
My mother is 85 years old, has diabetes 2 and has recently was diagnosed with RCC T2 N1 M0 39/24/39mm. It looks like that due to her age and other health conditions (anxious, frail, not very mobile) physicians are not eager to operate. She wants to try ivermectin+fenbendazole. She is taking the following medications:
Medication Group Purpose
Glioral / Glukofaz Antidiabetic (Metformin) Type 2 diabetes
Sermion Vasodilator / cognitive agent Circulation, cognitive support
Citalex SSRI antidepressant Anxiety/depression
Propafen Antiarrhythmic Heart rhythm control
Enalapril ACE inhibitor BP, heart protection
Lexilium Benzodiazepine Anxiety
Please let me know what protocol in her case would be best. Thank you
Hello Aleksandra, and thank you for your message. We are very sorry to hear about your mother’s diagnosis. Because she is 85 years old, has multiple chronic conditions, and is taking several medications that affect the heart, blood pressure, mood, and metabolism, there is no established or scientifically validated protocol for using fenbendazole or ivermectin in her situation. These compounds have not been studied in frail older adults with polypharmacy, and potential interactions with SSRIs, benzodiazepines, antiarrhythmics, vasodilators, and antidiabetic agents are unknown.
For these reasons, we cannot recommend any specific dosing plan. If she still wishes to proceed, the safest general principle is to introduce only one compound at a very low amount and monitor closely for changes in heart rhythm, blood pressure, mood, sleep, or appetite. It is important to avoid starting multiple new agents at the same time, since side effects cannot be distinguished in that setting.
Our dosage calculator can provide general weight-based information, but it is designed for adults without significant medical comorbidities and may not apply to someone of her age and condition. Decisions should therefore be made cautiously, with full awareness of the limited data available.
My dad is 88 years old with stage 4 lung tumor cancer. It has spread to his brain and neck area with lump. Had brain radiation and did not stop it. Will fenben do anything for it?
Fenbendazole is commonly used by individuals with advanced lung cancers, including cases with brain involvement. Lung tumours are among the cancer types that often respond to metabolic disruption, microtubule interference, and glucose-pathway suppression, which are the main mechanisms associated with fenbendazole. Even in late-stage disease, some families report reduced tumour activity, slower progression, or improved stability over time.
Age and prior radiation do not prevent its use, and many older patients tolerate fenbendazole well because it has a low toxicity profile. It does not guarantee a response, but it is reasonable to try a continuous daily regimen with food, since benefit in advanced cases usually requires consistent long-term dosing.
12 yr old male dog with Stage IV Large Cell Lymphoma. Started the Fenben 400mg and 600mg Milk thistle 4on/3off. However my significant other wanted to what the Dr tell us is best for our pet. The 2 days administered was not long enough to get results. We decided to start him on the Chop19 Chemo Protocol, I will continue on the Fenbem protocol for the next month, or longer based off guidance. The Cancer will return but I want to do everything I can so that doesnt happen. I am looking for a long term regimen of fenben to administer. Thanks
Hello, Galen, thank you for a question.
Fenbendazole can be continued safely alongside the CHOP protocol. It generally requires several weeks of steady use before any effect can be evaluated, since two days is not enough exposure to influence lymphoma cells. It is well tolerated, but appetite, stool quality, and overall energy should be monitored, and the dose reduced if any intolerance appears. Many owners continue fenbendazole indefinitely after chemotherapy as a maintenance approach.
Thanks for the response, and your resource for information, I am very excited about the promise in results. We reevaluated the CHOP protocol and have decided against it. We are sticking to the fenben mentioned above. I will adjust mg as needed along with time on time off and blood work in the 1-3 mon intervals. We did complete the initial injection for CHOP, which greatly reduced lymph nodes. With that in mind should I continue with steady use or 4/3. He is mildly lethargic so should i continue with 400mg, or reduce. Thanks
Hello, Galen, thank you for the update. If the first CHOP injection has already reduced the lymph nodes, that gives you a temporary therapeutic window in which steady fenbendazole use may help maintain control. Mild lethargy can occur for many reasons, including recent chemotherapy exposure, so it is reasonable to continue but at the lower end of the dosing range until his energy stabilizes. If he tolerates 400 mg without gastrointestinal changes or appetite decline, you may keep that amount for now.
Both continuous daily use and a 4-days-on/3-days-off schedule are acceptable long-term patterns. Continuous daily use provides a more consistent intracellular exposure, while the 4/3 schedule is sometimes preferred when dogs are more sensitive or need periodic breaks. Either method can be effective, and the decision can be adjusted over time based on how he feels, his activity level, and periodic blood work every one to three months.
If at any point stool becomes loose, appetite decreases, or fatigue worsens, reducing the dose or increasing the number of rest days is advisable. Many owners maintain fenbendazole for extended periods as long as tolerance remains good.
We wish you and your dog the very best moving forward.
Is Fenbendazole able to be taken by someone who has had a liver transplant within the last two years and is currently taking anti-rejection meds? The docs didn’t catch this liver cancer before the transplant and now it has spread to his lungs. Docs say there’s little to be done since he needs the anti-rejection meds to stay alive even though the cancer is gonna kill him. They say he can’t have a myriad of supplements since they affect your liver. Even curcumin and vitamin D is out as is ivermectin for the same reason. His potassium levels are dangerously high but can’t have dialysis since it will clear his blood of the anti-rejection meds. This guy is backed into a corner and just turned 61! It’s very sad to watch this family struggle.
Hello, Kris.
After a liver transplant, the immune system is being suppressed on purpose every single day. That makes any alternative therapy a much bigger puzzle, because almost everything has to go through the liver or affects liver enzymes in some way. And when someone is on tacrolimus, cyclosporine, sirolimus, or similar anti-rejection meds, even “simple” supplements can change drug levels and cause serious complications.
In cases like this, some families still choose to try it, starting very low and going slowly, and it can be worth a careful trial if there are no other options left. The important part is to monitor closely, and if anything at all feels off (any discomfort, unusual symptoms, or changes) it’s safest to stop immediately.
Hi all.
My 10 year old yorkshire terrier is believed to have testicular cancer. I say “believed” because vets will not diagnose unless neutering. I have been to 5 separate vets and they all have told me the same thing. I am open to neutering but would like to try other methods first.
I have been trying fenbendazole for about 6 weeks now and have not seen any improvement. I have been using panacur and dose it to about 111mg. He is a 5.2 lb dog. I pair this with krill oil. theracurmin, hemp oil, milk thistle and mushrooms like turkey tail. He gets the medicine at one meal and the vitamins at another. I am concerned that I have not seen any improvement. I cannot find any peer reviewed papers on fenbendazole and testicular cancer but I have found some on prostate and ovarian, indicating it can reach the reproductive system.
So I guess my question is, is my dosing correct? Should he be taking anything else? He is also fasting for about 20 hours a day. Unfortunately, most vets are very anti fenbendazole leading me completely on my own. I cannot even find a vet that will do blood work for me without a reason. I am feeling pretty hopeless. I know your FAQs say it can take months but I am worried that the cancer will spread before then.
Hello, Courtney.
A six-week course is still early for fenbendazole, especially with testicular tumours, which often respond slowly. Lack of visible improvement at this stage does not mean the protocol is ineffective. For a 5.2-lb dog, 111 mg daily is acceptable, but many owners increase toward 150–222 mg per day when tolerated, since small dogs often absorb lower amounts relative to dose. Fenbendazole should always be given with food to maximise uptake.
Your supplement combination is compatible and does not interfere with fenbendazole.
Hello,
Could we take fenbendazole during a long water fast(40 days) ? Because during water fast liver is a lot involved . If not, how long to wait before taking fenben?
Thank you, wish you a good day.
Hello, and thank you for your question. At this time, there is no scientific evidence evaluating the use of fenbendazole during prolonged water-only fasting, particularly during extended fasts lasting several weeks. A long water fast places significant metabolic demand on the liver due to increased ketone production, enhanced autophagy, and continuous detoxification processes. Because fenbendazole is metabolized through hepatic pathways, combining it with a forty-day fast could theoretically increase the physiological burden on the liver, even though fenbendazole is generally well tolerated in standard nutritional conditions.
For this reason, it is advisable to avoid initiating fenbendazole while the body is under the metabolic stress of an extended water fast. Allowing the liver to return to normal nutritional metabolism provides a more stable environment for the introduction of any exogenous compound. A conservative approach would be to resume normal nutrition first and then wait several days to one week before starting fenbendazole, so that hepatic enzyme activity, glycogen stores, and overall metabolic balance have had sufficient time to stabilize.
These recommendations are based on current pharmacological understanding rather than direct clinical data, and they aim to prioritize safety under conditions where research is limited. If you decide to begin fenbendazole after your fast, start gradually and monitor how your body responds.
Hello thanks for website . My mother have Large infiltrative mass in the central liver, with multiple additional nodules,
Primary gallbladder cancer spreading into the liver. Widespread enlarged lymph nodes in upper abdomen and retroperitoneal areas — supports malignancy. Two small lung nodules. We just wanted to started protocol. but got overwhelmed by so many different suggestion. Her weight is 70kg. Can you please help us for dosage and protocol. Thankyou
Hello Sana,
Thank you for reaching out and for providing these details. We understand how overwhelming it can feel when you encounter many different suggestions at once. To ensure that you begin safely and confidently, we recommend using our official Fenbendazole Dosage Calculator, which automatically adjusts the dosage according to body weight and provides a clear protocol. For a weight of 70 kilograms, the calculator will give you the most accurate dosing guidance based on the standard schedules that many individuals follow. You can find the calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
If you have additional questions after reviewing the calculator, you are welcome to contact us again. We will gladly assist you in navigating the information so you can begin the protocol with clarity and confidence.
Good mor administrationning
A very close friend of mine was diagnosed with dementia I remember reading something about fenbendazole can work maybe not get rid of it but maybe bring them back to earth a bit. Can you help us out on that one?
Dear Rich,
There is no strong evidence that fenbendazole can treat dementia directly, but some people explore a parasite-cleanse protocol when cognitive decline seems sudden or unexplained. The idea behind that approach is simple: chronic infections, inflammation, or parasitic load may worsen brain function in certain individuals. If your friend wants to try it, it is important to follow a structured schedule, take breaks, and monitor how they feel.
Another option many people use is Methylene Blue. This one actually has research behind it – low-dose MB has been studied for its ability to support mitochondria, improve cellular energy, and enhance memory and cognitive clarity. That is why some individuals with dementia, Alzheimer’s disease, or brain fog report feeling “more present” or “more grounded” after starting it. The doses are very small, and it is usually taken in water.
None of these approaches replace medical care, but they are things people often try in addition to standard treatment to support brain function and overall clarity.
Just wanted to give you an update on our 55 lb Labrador mix. She is now 60 lb and is receiving chemo (vinblastine) every 2 weeks. We have her on the Fenbenzaole (444) 6:days on and 1 day off. She is also on Tumeric/Curcumin (500 mg 2 x per day), D3, Chinese herb immune booster. When originally diagnosed bladder tumor in June (transitional cell carcinoma) mass was roughly 3cm x 3 cm. It did shrink to about 1.5 cm x 2.5cm but has remained,the same for about 6nwks Is,there anything additional you would recommend or is this a normal result with the use of the Fenbenzaole. Any information would be helpful.
Hello, and thank you for the update. It is encouraging that your dog’s tumor initially reduced in size and has remained stable for several weeks. For transitional cell carcinoma, a stable measurement over time is considered a positive response, especially when combined with vinblastine and supportive supplements. Many dogs experience a plateau phase after the initial shrinkage, and maintaining stability is often viewed as meaningful progress.
Your current fenbendazole schedule and supplement routine are consistent with what many owners use. Although no controlled studies exist for additional agents, some owners choose to introduce ivermectin at low, intermittent amounts as a complementary approach. This is not a proven treatment, but it is something commonly explored in combination with fenbendazole in cases where tumor behavior has plateaued. If you decide to consider it, it should be introduced slowly and monitored for tolerance.
Beyond that, optional additions such as omega-3 fatty acids or quercetin are sometimes used for general cellular support, though their impact on tumor size is not defined.
If your dog continues to feel well and imaging remains stable, that is a meaningful therapeutic outcome for TCC. We hope the stability continues and her quality of life stays strong.
Richard December 9, 2025
Thank you for your response back to me
She’s on 444 6 days what im Tring To figure out is how Often And how much?
Example: reduce FENB to 4 days from six (she’s doing well on that 6 days )
Example:Or low dose like 1 os 3 MG in afternoon 2 or 3 days a week of Ivermectin
With FENB but in afternoon or evening and am I right on dose? Starting her out really slow can you HELP
Plus she’s on the vinblastine I really don’t want to over do it
Fenbendazole.org December 11, 2025
Hello Richard, thank you for the clarification. Since your dog is tolerating the 444 mg schedule well, there is no strict need to reduce the fenbendazole frequency unless you notice changes in appetite, energy, or stool quality. Many owners choose to continue the six days on, one day off rhythm for stability, while others shift to four or five days on if they want a gentler long-term schedule. Both approaches are commonly used.
A commonly used starting range for ivermectin in dogs is 0.05–0.1 mg/kg, given only two or three times per week, with several hours separating it from fenbendazole. Beginning at the lowest end and monitoring how she feels is the most cautious approach.
The goal is not to “stack” high doses but to introduce each component slowly and watch for tolerance. Because she is also receiving vinblastine, a careful, gradual schedule is especially important. If she is feeling well and imaging remains stable, maintaining a steady routine is more valuable than trying to push higher or more frequent dosing.
If anything seems too strong, you can always reduce the frequency rather than the amount. Slow, consistent adjustments tend to work best alongside her ongoing treatment.
I am 63 years old male and I had correctal cancer surgery about a month ago to take out tumor from my colon. I saw my oncologist and I am not interested in doing FOLFOX or CAPOX chemo therapy. From what I understand, It increases my survival rate by 20% only. They come with some serious side effects that could be permanent and it only increases my survival rate by 20%. I learned about Fenbendazole treatment and is something I want to do and I’m hoping that it will help cancer from metastasizing remotely. So, starting next week, I will take 222mg per day Mon thru Wednesday and rest Thurs thru Sunday. It is based on the dosage calculator. Also, I will be taking Curcumin and CBD oil. The recommendation did not mention anything about Milk Thistle but I also plan on taking that. Question is do I take Milk Thistle just Mon-Wed or every day of the week like Curcumin. I heard that it may not be good to take Milk Thistle every day. I also read that taking Vitamin D3 is also encouraged. Should I take that too or can I skip it for now. If I should take it, how often should I take it, daily? Lastly, I read that I should do this Fenbendazole treatment for 5 years. Is that every week for 5 years, or do I take break after certain number of weeks, and how long would the break be. Does this approach sound good or is there something else I should know. I’m planning on blood test every 6 months to keep an eye on AST and ALT levels. I’ve been reading pretty much everything about this treatment but also fairly new at it. I’d appreciate any advice.
Hello Stephen,
Thank you for sharing your situation. According to the protocol we provide, the recommended regimen is 222 mg of fenbendazole once per day for six days each week, Monday through Saturday, with Sunday as a rest day. This schedule is generally more effective and better tolerated than a three-day cycle, and it is the approach most people follow.
Curcumin and CBD oil fit well with the protocol shown in the attached instructions. Milk thistle can also be taken daily, not only on the days when fenbendazole is used, since consistent liver support helps maintain stable AST and ALT levels. There is no evidence that daily milk thistle is harmful.
Vitamin D3 is encouraged, as many individuals have low levels after cancer treatment. It is typically taken daily, with the dose adjusted if blood testing is available.
Regarding duration, this information is only general guidance, as the length of treatment depends on how the cancer responds. Most individuals continue using fenbendazole according to the standard protocol until they are confident the cancer is no longer present. After that, they usually transition to the relapse-prevention protocol and continue with that schedule moving forward.
Your plan to monitor AST and ALT every six months is acceptable, though some people choose to test more frequently at the beginning.
My mother has had multiple cancers since March 2023. Triple neggative .
It started in her breast, then lymph nodes, then lungs, then brain, and now a little bit in her liver. Αt the beginning She underwent chemotherapy and immunotherapy but nothing. In the brain she has three hearths and she did cyberknife after that the two hearths stoped but one of them make her an brain edema . I start October with IVE 12mg two times per day and fenben 222mg two times a day, vitamine D3 25000 per week, vitamine e 1000 per day,plaquenil 200mg two times per day . Is all that drugs ok to keep going …. ???
Does anyone know how to stop brain edema ?
I BEG someone help us please
Dear Dimitris,
We are very sorry to hear about your mother’s situation. In complex cases like this, supportive measures that reduce inflammation and stabilize metabolism often become very important. The protocol you listed is commonly used by many people, and most continue ivermectin, fenbendazole, vitamin D3, vitamin E and Plaquenil without issues, although every individual responds differently, so it is essential to observe your mother closely for any signs of intolerance.
For brain edema, many caregivers add supplements known for their anti-inflammatory and stabilizing effects. DCA (dichloroacetate) is often introduced when cancer spreads to the brain, because it supports mitochondrial function and cellular energy balance. Boswellia serrata extract is widely used around the world for managing brain edema, and many people report meaningful improvement when it is taken consistently. Additional supportive options include omega-3 fatty acids, curcumin and magnesium, which may help reduce neuro-inflammation and ease pressure-related symptoms.
These measures are not cures, but they are frequently used to help control inflammation and maintain stability. If you decide to continue the protocol and add new components, do so gradually and monitor your mother’s reactions carefully. Finding the right combination often requires time, patience and close observation.
We sincerely hope your mother experiences relief and improved stability, and we remain here to assist you with any further guidance you may need.
I have a 2mm tumor in my lung and I’m ready to get the Fenbendazole combined with ivermectin. I’ve taken ivermectin horse paste before I found this. Honestly I’m not sure where the good stuff is. I see multiple scam stuff everywhere. How do I know I’m not wasting my time, money, and life? Can you try to name a few or find a way to hint. I’m pretty resourceful but this is so important I need input. I saw you’re testing some brands. Someone must be able to vouch for something somewhere now?
Dear Veronica,
Thank you for your message and for expressing your concerns. It is completely understandable to feel uncertain when there are many unreliable or misleading products on the market, especially when your health and safety are at stake. As the Fenbendazole.org team, we focus on providing accurate information and guidance, but we cannot publicly list or endorse specific suppliers. The landscape of available products changes frequently, and naming individual brands could create misunderstandings or unintended risks.
However, you can find reliable community feedback in the dedicated Facebook group linked on our website. Many members openly share their experiences, discuss which sources have worked for them, and provide real-world insights that can help you make an informed decision. This community-driven information is often the most practical and up to date.
It is important to stay cautious, verify any seller carefully, and rely on groups where people actively report their results. We wish you clarity, safety, and the best possible outcome as you move forward.
I have a large growing menginglioma, have recently been told not to drive due its size, and have been waiting 5 years for an operation due to NHS doctors constant strikes making waiting lists longer. I take Phenobarbitone 90mg daily re epilepsy – 49 years and have been researching taking fenbenazole. The long term effects of the anticonvulsant mean liver pain, and raised AST/ALT levels of which the doctors ignore since they prescribe the medication. I now have a fatty liver too. (Non drinker).
Consequently, since I don’t get any medical support I am not sure how to monitor my liver should I start fenbenazole.
I’d really rather not die waiting for treatment, which seems ever more likely, but would appreciate any advice regarding dosage etc under the circumstances.. I recently started taking 900mg circummin with black pepper and ginger etc, plus 420mg boswellia, 2tsp black seed oil, and liverel support for liver. All of which are supposedly not good with anticonvulsants, but I’m desperate. I should value any advice you feel you can provide
Hello Sue,
Given your situation, it is completely understandable that you are looking for options outside the system, especially after years of waiting and with a tumour that continues to grow. A meningioma of that size, combined with long-term phenobarbitone use, places significant pressure on the liver, and your concerns about elevated AST, ALT, and fatty liver are entirely valid.
Fenbendazole is usually mild on the liver, but when liver function is already compromised, it is important to be cautious. Without medical support, the best way to monitor yourself is by watching for warning signs such as increased right-sided abdominal pain, unusual nausea, dark urine, pale stools, fatigue, itching, or any yellowing of the skin or eyes. These can indicate that the liver is under additional strain.
Because your liver is already stressed, you may benefit from adding support such as TUDCA and choline with inositol. These compounds help with bile flow, reduce inflammation, and support fatty-liver recovery, and they can be combined with what you are already taking if you tolerate them well. Curcumin with black pepper, boswellia, and black seed oil all have anti-inflammatory properties, but they can influence how the liver metabolises medications, so spacing them out and introducing any new supplement slowly is a sensible approach.
Fenbendazole dosing in situations like yours is best started very gently. Begin with half of the standard dose recommended in our calculator and use shorter cycles at first. If everything feels stable, you can gradually increase the number of days, and later work your way up to the full suggested dose. You can find the calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
With slow adjustments, close self-observation, and good liver support, many individuals in similar circumstances manage to use fenbendazole safely.
I am 68 years old, 66 kg.
I was diagnosed with duodenal mass, gland forming tubular adenocarcinoma (intestinal type adenocarcinoma) in January, 2025. I have metal stent in bile duct.
In January, 2025 I had mesenteric artery surgery. The same month i had brain stroke. ( I can walk just my right arm is still affected).
I have heparin allergy.
Years ago I was diagnosed with AFib and have to use blood thinner daily.
Last year i had internal bleeding.
I use pantoprazole, candesartan, feramax, apo bisoprolol, atorvastatin, Fondaparinux sodium injection 0.6ml daily.
Can I take Fenben therapy. Does it interact with other medication?
Hello Aljosa,
Given your complex medical history, including a recent diagnosis of duodenal adenocarcinoma, stroke, use of multiple medications, and a heparin allergy, it is important to approach the use of Fenbendazole with caution and careful consideration. Fenbendazole is generally considered safe for many individuals, but it can interact with certain medications, particularly those affecting liver enzymes, blood clotting, or the gastrointestinal system. Fenbendazole may have potential interactions with anticoagulants, such as Fondaparinux, which is used for blood thinning. This could increase the risk of bleeding, especially given your history of internal bleeding. It is essential to assess if any adjustments to your anticoagulant regimen are needed while using Fenbendazole. Pantoprazole is a proton pump inhibitor that reduces stomach acid, which may affect the absorption of certain medications. Fenbendazole should be taken with food or fats to enhance absorption, so it is necessary to time your doses appropriately to avoid interference with the medication’s effectiveness. Fenbendazole is unlikely to directly interact with bisoprolol, a beta-blocker, or atorvastatin, a statin, but it is important to monitor for any unusual side effects, especially considering your heart condition and the medications you are taking. Since you have had a stroke and have partial arm weakness, it is also important to consider how Fenbendazole may affect your overall energy levels and any potential side effects that could complicate your recovery process. While Fenbendazole is often used as part of alternative treatment protocols, it is essential to evaluate potential interactions between Fenbendazole and your existing medications, as well as monitor your health closely for any adverse effects. It may also be helpful to consider additional supportive treatments, such as liver support or adjustments in your current regimen, to ensure the best possible outcomes.
Hi, I’ve been diagnosed with stage 4 adeno/neuroendocrine rectal cancer which has metastasized to pelvic lymph nodes, and liver, and lungs, and right pelvic area. According to the dosage schedule for 107 lbs. it recommends 222 mg. fenbendazole, should I take 6 days on and off 1? What if I took the 444 mg. would that be harmful? I’m currently taking 1 cc Ivermectin and 1 tsp fenbendazole. Would you recommend additionally the curcumin/turmeric, CBD oil and Vitamin D? Thank you for any information you can share.
Hello Darlene,
For a body weight of 107 lbs, 222 mg is the standard starting dose, but some individuals do choose to use 444 mg instead. Using the higher dose is generally considered acceptable as long as you tolerate it well and monitor your liver enzymes regularly, since liver function is the main safety concern with higher benzimidazole dosing. The 6-days-on and 1-day-off schedule is commonly used, but it is not mandatory; the most important factors are consistency and tolerance.
Your current use of ivermectin alongside fenbendazole is a combination that many people choose, and adding curcumin or turmeric, CBD oil, and vitamin D is also common. These supplements do not conflict with fenbendazole or ivermectin and are often used for their anti-inflammatory or supportive properties.
Hi all. About 4 years ago, my mom was diagnosed with basal-cell-carcinoma & splenomegaly, leading to splectomy. Cancer-cells were found in spleen. After several more basal-cell occurrences (MOHS treatments)She became very ill. Diagnosed about 2 months ago with ‘t-cell large granular lymphocytic leukemia’ and squamous-cell-carcinoma. Also systemic candida. Constant UTI & sinus infections with nearly, non-stop-courses of antibiotics(sometimes, 2 at a time & steroids(prednisone) Cancer center said, ‘Go home, we’ll keep an eye on it”.About 25 days ago, I convinced her, she had nothing to lose, by taking the fenben & IVM paste. She also has high BP & is on 2 BP drugs, NA fatty liver & NA cirrohis. Thyroid nodules.Low protein levels..She is taking the bio-available form of turmeric, milk thistle but no berberine because of BP drugs. Want her to take vit e, spirolina but her stomach’s suffering from current list. She just began taking, a 2 day break, once a week & using 2 capsules of activated charcoal’ instead of fenben/IVM. I’ve read of great successes with other cancers BUT have seen 2 posts by people claiming their loved-ones had the TLGLL, used the protocol, with no help. They didn’t heal or live. Has anyone with this more rare condition, been helped or is this an act of futility? I’d really be grateful for some insight. My mother’s a dear, kind lady and she wants to live. Thank you so much for using your time to help strangers online. Any advice would be greatly appreciated.
Dear Mattie,
Fenbendazole and ivermectin are not universal treatments that work the same way for every cancer type or every patient. The clinical response always depends on how the specific cancer responds to metabolic and microtubule disruption, how it aligns with the patient’s immune function, and how the body tolerates the overall treatment load. For some individuals, these drugs provide significant benefits, but there are cases where the progressing biology of the disease or the depletion of the immune system leads to a limited or no response. T-cell large granular lymphocytic leukemia is a complex and unpredictable condition, so it is not surprising that different individuals react differently.
Given your mother’s liver condition, it would be sensible to support hepatocyte function. A combination of TUDCA and choline with inositol generally helps improve bile flow, reduce inflammation, and support fat metabolism in the liver, which can be beneficial in cases of fatty liver infiltration and cirrhosis. In addition to these supplements, adequate protein intake remains crucial, even if appetite is diminished. Easily digestible proteins such as egg whites, cottage cheese, collagen hydrolysate, or small portions of whey protein can help slowly restore albumin and overall nutritional status.
Given the systemic candidiasis and recurrent urinary and sinus infections, it might be helpful to add N-acetylcysteine (NAC) to support glutathione levels and gradually introduce probiotics such as *Saccharomyces boulardii* to help strengthen the gut barrier and reduce infection recurrence. Due to the altered stomach sensitivity, smaller doses of supplements should be used, and tolerance should be monitored carefully, as any supplementation needs to align with her current weakness.
Fenbendazole and ivermectin use can continue with regular breaks, while monitoring liver enzymes and ensuring that the body is well-hydrated and receiving adequate minerals. It would also be wise to introduce mild antioxidants, such as vitamin C in smaller doses throughout the day, to avoid exacerbating gastric issues. If blood pressure and heart rate allow, very light physical activity, such as short walks at home, helps maintain lymphatic flow and immune balance.
Your mother’s situation is challenging, but that does not mean the efforts are in vain. Even in rare and aggressive hematological conditions, the body’s response depends on multiple interconnected factors. It is crucial to remain attentive to symptom changes, monitor tolerance, track liver and kidney function, and maintain a stable nutritional status. These measures improve overall biological resilience and increase the chances that any selected protocol will have at least partial effect.
If Mebendazole is safe for lactating moms, especially at 16 months when babies are only getting a few oz a day, would that make Fenben safe? I know there have been cow studies on their milk. Not everyday but just like the two round option. Or would I need to take it longer if I’ve never done a cleanse, but my detox pathways have been open using NAC and other supplements for almost 10 months. And what binder would be good in the breastfeeding scenario? Thanks for this website, it’s amazing!
Dear Sav,
Thank you for your thoughtful question. Unfortunately, we cannot consider fenbendazole “safe” for breastfeeding simply because mebendazole is sometimes used during lactation. Although both drugs belong to the benzimidazole class, they are not identical, and fenbendazole has no clinical studies in breastfeeding humans. The only available data come from livestock research, which shows small amounts can appear in milk, but these studies are not designed to evaluate infant safety and cannot be used as medical guidance for human use.
Because of this lack of human data, we cannot say that fenbendazole is safe during breastfeeding, even if the child is older or nursing only a few ounces per day. If someone still decides to use any benzimidazole while breastfeeding, that choice should be made together with a healthcare professional who can evaluate risks individually.
As for binders, most clinicians consider options such as activated charcoal or bentonite clay only with strict timing separation from breastfeeding and medications, because binders can interfere with nutrient absorption. This is something that should be discussed with a healthcare provider who can assess your personal situation.
We appreciate your kind words about the website, and we ąre glad the information has been helpful.
Dear Brian,
You generally do not need a prescription for fenbendazole or ivermectin if you purchase them online from reputable suppliers. Fenbendazole is not prescribed for humans in most countries, so telehealth clinics will not write prescriptions for it. Some clinics may prescribe ivermectin, but for most people it is simpler to buy it directly without a prescription.
When choosing a high-quality product, the most important things are purity, third-party lab testing, clear labeling of dosage, and a transparent, trustworthy supplier. Avoid anonymous sellers and very cheap products with no certificates of analysis. A reliable source will always provide clear information about purity, testing, and manufacturing standards.
Thanks for your answer. Do you or anybody have any information if Fenbendazole (Mebendazole) helps against meningeoma. Just wondering because meningeomas are not cancer. As said, I am treating myself now for 6 weeks (Mebendazole, Vit D, CDS and Zinc) but do not feel any improvements so far. Would you combine with Ivermectine? Thanks much in advance.
Thank you for your message. At this time, there is no clear scientific evidence showing that fenbendazole or mebendazole is effective specifically for meningiomas. These tumors are usually benign and slow-growing, and their biology is quite different from aggressive cancers, which are the primary focus of benzimidazole research. Because of this, responses-if they occur-tend to be slower and less predictable.
It is also important to keep in mind that six weeks is still a very early stage of treatment. Many people report that noticeable changes, such as stabilization or gradual improvement, usually appear only after approximately two to four months of consistent use. Therefore, not feeling any changes at this point does not automatically mean the treatment is ineffective.
As for combining mebendazole with ivermectin, there is no established evidence for this approach in meningioma. Some individuals choose to combine them based on their different proposed mechanisms, but this remains experimental, so careful dosing and close attention to tolerance are essential.
If you are considering continuing or trying an additional agent such as ivermectin, you may do so as long as dosing is kept within safe limits and you tolerate it well. While the evidence is limited, many individuals choose to explore combinations, and for most people this does not cause additional problems when done responsibly.
Hello, Tom. Thank you for sharing your experience and kind words.
You may also add metabolic or supportive compounds such as vitamin D3 + K2, curcumin, milk thistle, CoQ10, and omega-3. All aimed at supporting healthy cell metabolism and liver protection.
Also we have some information, that compounds like sodium dichloroacetate (DCA) may help with meningioma.
Thank you for such a helpful website. I started taking 14mg Ivermecten daily in July for a very small (6ml) tumor in my lung. It has been slowly shrinking – even before the ivermecten started. If I add fenben do you think it will die faster and completely or since it is so small just be patient and let the iver do it’s thing?
Hello. Great to hear your progress so far! In cases like yours, adding fenbendazole can often help support and speed up progress, since it works through a different metabolic pathway than ivermectin. The two can complement each other well. Fenben is generally considered very safe, especially when liver function is normal. If your recent liver tests look good, there is little harm in trying it. Many people notice that fenbendazole tends to accumulate results over time, so patience and consistency are key. You are already on a good path, this could help move things along a bit faster.
Hello Ashley,
Current scientific information does not indicate that fenbendazole increases blood glucose levels or interferes with insulin function. It is not known to affect glucose metabolism or insulin sensitivity. However, because human research is limited, it is always wise for someone with diabetes to monitor their blood glucose more closely when introducing any new substance to see how their body responds.
I have stage 1A cutaneous T cell lymphoma, mycosis fungoides. I would be grateful for your guidance on the following questions.
Fenbendazole
a. Is there any clinical evidence that fenbendazole is effective in CTCL, specifically stage 1A mycosis fungoides,
b. If any data exist, what dosing schedules have been used in humans, what monitoring is advised, and what safety concerns or drug interactions are most relevant in a patient on skin directed therapy
Mebendazole as a substitute
a. If fenbendazole is not available in my region, does mebendazole have a similar mechanism or any clinical evidence in CTCL that would justify its use
b. If so, what human dosing and duration have been reported, and what safety profile should be considered
Ivermectin
a. Is there evidence for topical ivermectin cream used on MF lesions, in terms of response rates, expected time to response, and safety on chronically treated skin
b. Is there any evidence for oral ivermectin in CTCL, and if so, what dosing, duration, and monitoring have been used, and what adverse effects are most concerning
If you could point me to peer reviewed studies, case series, or clinical guidelines that address these points, I will review them closely. Thank you.
Hello, Bassem. Thank you for a question.
Mechanism behind fenbendazole – disrupting microtubules and glucose uptake — applies broadly to many cancer types, including lymphatic ones. There are no clinical studies to support that, and possibly will never be, because it is a generic drug with no patent so no one in pharma will invest any money into it. If fenbendazole isn’t available, mebendazole works through a very similar pathway and can be used the same way. Topical ivermectin hasn’t shown much benefit for MF patches based on what we’ve seen.
You can start slow, observe how the skin responds, and adjust as needed. Many people stay consistent for several months at minimum till any results show up.
I have prostate cancer and have been seeking sources of fenbendazole, mebendazole, and Ivermectin through the internet since where I live it is not legal OTC and must get a prescription which nobody will prescribe. In searching for things on the internet I have found that it is difficult to know if what I’m being sold is what they’re representing. It would be vastly helpful if a list of good sources and bad sources was published to help separate the sheep from the goats. Please consider making a list part of your website and of course cover your liabilities with sufficient disclaimers. Getting actual product instead of something that’s either not Pure or carrying extra toxic things or fillers is a real risk when sources are difficult to find. Evil people looking to sell falsely labeled products to people who are desperate is a reality that will only be challenged if a list is published and some accountability through Market reaction happens. Even publishing a guide on how to determine if something is what it says it is would be very helpful. As a purchaser of product, I can only rely on the representations being made by the seller even about third-party testing, so I really don’t have any way of knowing unless I’m conducting the third party testing in contact with the labs that are doing it, and then it’s only for the batch that they were sent instead of what’s actually coming out of production.
Hello, Dan.
We completely understand. We’re actually working on putting together a list like that. There are just so many brands and sales channels that it’s difficult even for us to track them all accurately.
We’ve already sent several well-known products for lab testing and are waiting for the results. More samples will follow, as our goal is to eventually identify the top 5 verified (by us) products.
It will take some time, but we will publish the findings only when we’re confident they are accurate, unbiased and actually legal.
I have an 11 year old Labrador with lots of lumps, vet’s diagnosis they are lipomas(fat cells). The biggest mass is on his left axilla which is like a size of a tennis ball. Im wondering if Fenben oral/paste would be suitable for him and what dosage. Looking forward to hearing from you.
Dear Reena,
Thank you for reaching out to us. Based on your description, Fenbendazole would be suitable for your Labrador. It is commonly used for dogs and is generally very well tolerated.
You can find the correct dosage using our calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. Enter your dog’s weight, and it will show the daily dose of pure Fenbendazole in milligrams. Then, calculate how much of your product to give based on its concentration. For example, if the calculator suggests 444 mg and your paste contains 100 mg per gram, you would give 4.44 grams of paste daily.
Fenbendazole is best given with food for better absorption.
Hello,
I have a dog with two adrenal tumors. I am not finding anything on your site for adrenal tumors. The biggest challenge is that I have one possibly invading blood vessels. I am reading this stops cancer but what does it do for tumors. If it stops the cancer ( not sure she has cancer. you can’t test unless you have them removed) do they get smaller?
Hello, Danielle. Thank you for reaching out!
Fenbendazole has shown potential in reducing tumour size and inhibiting cancer growth in various models, and it may help with your dog’s adrenal tumours by slowing growth or even shrinking them. While there are no specific clinical studies on adrenal tumours in dogs, the mechanisms of Fenbendazole: targeting cell division and glucose metabolism—suggest it could be beneficial. Many people have seen positive results with other types of tumours, so it’s likely that it could help in this case as well.
As always, it’s important to monitor progress with your vet, but Fenbendazole is a promising option to consider.
Hi have an benign acoustic neuroma for the last three years.
Has there been any instances where this or any other drud similar has positively affected reduced the tumor?
Hello, John.
Unfortunately, we have not heard or read any reports of fenbendazole and acoustic neuroma. However, we do know of a few cases where fenbendazole significantly contributed to the treatment of neurofibroma and ependymoma.
Dear Agnes,
Thank you for reaching out with your question. While fenbendazole may offer potential benefits, it is important to note that your husband’s liver cirrhosis requires careful consideration when using any supplement, including fenbendazole. To support liver function, we highly recommend adding liver support supplements such as TUDCA or milk thistle while using fenbendazole. To start, it is advisable to begin with half of the recommended dose. For instance, if his weight indicates he should take 222mg per day, he can begin with 111mg per day for a few weeks, using fewer days per week initially. If he feels well and experiences no issues, he can gradually increase the number of days per week and, later, the dosage. It is essential to monitor his condition closely and make adjustments as needed.
I suspect my 11 pound cat has developed some type of cancer. Behavior has recently changed and he has been much more lethargic the past 2 months. For about the past 7 months he would often throw up after a meal and also developed small scabs that resembled flea allergy dermatitis. There were fleas but they were treated and are gone now and he didn’t have the dermatitis when fleas were present. Scabs persist. For the past few weeks he has been eating much less. Today he just started growling in secluded areas and gets aggressive when anything comes near him for a period of time. I can tell something is seriously wrong with him I’ve watched a cat get cancer once before it was similar to this. He seems to have pain when I push on his lower abdominal area and he has been licking/cleaning his backside area very often more than usual. I’ve ruled out a blockage and other possible causes and I suspect it is some kind of cancer. I’ve read that the Fenben dose for him is 2.5ml using a 10% solution of 100mg/ml of fenben. 3 days on 4 days off. What else do I need to incorporate into his treatment regimen to keep it as safe as possible and give him the best chance? I don’t have a ton of money so a proper vet diagnosis is probably out of the picture and none of the vets I typically used to go to would even treat my pets without vaccinating them which is a deal breaker for me. Thanks for you time
Dear Kevin,
Thank you for sharing this – it is very clear how much you care about your cat, and you are doing everything right by paying attention to the changes you have noticed.
For an 11 lb (5 kg) cat, the typical fenbendazole dose is about 333 mg per day for four days, followed by three days off, and then repeated weekly. Since you have a 10% liquid solution (100 mg/mL), that equals approximately 3.3 mL per day during treatment days. You can start with half of that amount at first to make sure your cat tolerates it well, and then gradually increase to the full dose.
You can mix the fenbendazole with a small portion of fatty food such as wet cat food, tuna, or a teaspoon of coconut oil – it helps with absorption and makes it easier for him to take. Fenbendazole is considered very safe for cats, even if it turns out not to be cancer, so you will not harm him by trying it.
If possible, consider adding gentle liver support such as milk thistle or TUDCA, and make sure he stays well-hydrated throughout treatment. You are acting early and with great care – that gives him the best chance for comfort and recovery.
Hello,
My dog is 40 kg/ 88 pounds. I was giving him Safe-Guard 1 1/4 teaspoons of the liquid, but it smells and tastes bad. So I ordered the powder from FenBen Lab thinking it would have less junk in it. Do you think this powder/brand is just as effective? His weight is so close to 90 pounds, should I do the 666mg? He has Hemangiosarcoma with “spots” on the liver. I am so terrified and can’t sleep at night worried sick his spleen will rupture and he will suffer. But during the day, he seems tired but without pain, so putting him down does not seem right yet. I just don’t know the best thing for him. Any thoughts on these issues would be so much appreciated. And I would like to say (as a human nutritionist) I am so grateful for people like you. You’re rare!!
Hello Carolyn,
Thank you so much for sharing your story, and we completely understand how difficult it is to see your dog going through this. It is clear how much love and care you are giving him, and that truly makes a difference.
Yes, FenbenLab is an excellent choice. They provide pure, pharmaceutical-grade fenbendazole with no unnecessary additives, and their products are highly regarded for consistency and quality. It is a great option, especially for dogs who dislike the taste or smell of liquid formulations.
For your dog’s weight of 40 kg (about 88 lbs), a daily fenbendazole dose of 666 mg is appropriate and well within the standard range. You can mix the powder with a small portion of food that contains some fat to help with absorption and make it easier for him to take.
Continue to monitor his comfort closely, and know that what you are doing – supporting him with care, attention, and the best available options – is already the right thing.
Yes, but days off are more of a personal preference considering every person has a different response to this compound, so it might vary from 1 to 4 days. Also to asses this everyone should asses the liver health and the severity of the disease they have.
Dear Bernt,
Thank you for reaching out and for sharing your story with us. We are glad to hear that you have achieved full remission after treatment. For maintenance and long-term support, the Relapse Prevention Protocol is typically recommended. This protocol is designed for individuals who are currently in remission and wish to maintain a stable, cancer-free state while supporting normal metabolic balance.
You can find the full dosing instructions through our Fenbendazole Dosage Calculator at https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. In the calculator, simply enter your weight and select “Relapse prevention” in the Protocol section. The calculator will automatically generate your appropriate daily fenbendazole dosage along with a detailed schedule.
This protocol typically involves taking fenbendazole for three consecutive days per week (for example, Monday through Wednesday), followed by four days off. The cycle is repeated for about ten weeks and can be done one, two, or three times per year, depending on individual circumstances and tolerance.
Hello, Karina.
Yes some people use both on separate days. For instance in a seven day week they take fenben for 3 days, ivermectin for 2 days and then take a few days off medication for liver to adapt and recover better.
My husband has oral cancer and has been taking Ivermectin as well as Fenbendazole. He has been taking the 222mg capsules but it is getting harder for him to swallow them. I was wondering if I could take the powder out of the capsules and administer to him through his feeding tube? I appreciate any suggestions.
Dear Bonnie,
Thank you for reaching out and for sharing your husband’s situation. We understand how challenging this time must be for both of you.
Yes, the fenbendazole powder can be taken out of the capsules and given through the feeding tube. It is usually best to mix the powder with a smooth, semi-liquid food such as yogurt, kefir, or a thin porridge. This helps the powder blend evenly and makes it easier to administer without clogging the tube. After giving the mixture, flush the tube well with water to make sure the full dose reaches the stomach and the tube stays clear.
Including a small amount of dietary fat, such as butter, olive oil, or another mild fat source, can also improve absorption.
We wish your husband strength and comfort as he continues his treatment.
Hello!
I have a 12 year old cat that presented with excessive blood in vomit in March 2025. An ultrasound determined that he has a large gastric wall mass. Just recently (end of September) I had a biopsy done and they determined it was high grade lymphoma. So far, I have not treated him with chemo.
At the beginning, I started him on Prednisolone 5mg daily, adding 65mg Fenbendazole daily, Vitamin D daily, Omega 3 daily, Turkey Tail daily, pre/probiotics daily (all with food). Gradually I added in Ivermectin at 0.8mg 5 days a week. By this time, I increased his Fenbendazole to 300mg and had him take it only 4 days a week. I’ve been monitoring his liver via blood work and it was stable throughout the months. Ultrasound after ultrasound, the mass warped in size, changing in width and length. One measurement would increase, the other decrease. I thought the treatment was working. However, the mass stopped any notion of shrinking even with higher and higher doses of Fenbendazole (700mg). By this time, I took him off of Ivermectin and ramped up his Fenbendazole to 1000mg 6 days a week (split into AM and PM doses, 500mg each). I tried adding curcumin but his anemia took a turn for the worst and I had to back off. I wanted to use CBD but I fear interactions with Prednisolone and it causing the prednisolone to be too overwhelming on his system.
My vet is open minded and I am transparent with her about everything I am doing. I was really afraid of putting him on such a high dose of Fenbendazole, but I had reached out to Dr. Makis via email and he recommended that as the starting dose “at least” (that was back in April and I did not know that my cat had lymphoma, I just knew he had cancer). He’s been on the 1000mg of Fenben for over a month and his recent bloodwork was rough. His anemia is worse than ever and now his albumin is low (which it had never been before). That is a huge concern.
Yesterday I took him off of fenbendaozole completely and I am grasping at straws to figure out what my next step should be. I’ve considered MMS (chlorine dioxide), but right now his liver might not be able to handle that burden. I’ve been getting fenbendazole (and ivermectin when I had it) from Chewy pharmacy– liquid oral solution. Because of his recent decline, I also re-started his iron dextran injections and then started him on B-12 complex injections (and digestive enzymes).
I really wanted to give him milk thistle and curcumin but I’ve read that it can prevent iron absorption and actually remove iron from the body.
So far, his kidneys (which is usually the first health problem for older cats) have been stable. His potassium is low and so I’m starting him on that once it comes in the mail. I want to support his kidney health to help take some burden off of his liver. And I want to support his liver health. Do you know of anything that may help? Could I give him CBD oil? Curcumin? I’m afraid to start him back on Ivermectin because I’m not sure if it helped and it’s easy to cause toxicity in cats. Fenbendazole was much safer to push for higher doses… but, do you think the Fenbendazole would of made a greater impact this far into his journey if it was going to work for him? He has outlived the statistic for sure and done very well, but he isn’t getting better. I am also afraid of him getting drastically worse without the fenbendazole….
I do need to do another ultrasound and see if there’s been any change in the size of his mass. It’s growing and changing in measurments (partly due to the nature of an ultrasound for that area) and partly due to treatment. Surprisingly though, he barely vomits now. He was a chronic puker way before he was vomiting blood. The few times he did puke over the last month there was no blood anymore! However, he lost his strength all of a sudden. He’s had some good spells though where he seemed on the mend if you were to just meet him you’d never know he was sick. Now, he looks frail all of a sudden. But he has enough energy to catch a chipmunk outside. I’m trying to give him the best quality of life that I can even with all the supplements and syringe feeding (something new I had to start because he isn’t eating well– and I tried every type of cat food you can think of).. but I feel really stuck now. Any words of advice would be greatly appreciated. He did not look nor act like an older cat until he got sick. He had a lot of energy and a big apatite. (Oh, I’ve been trying to feed him a low glycemic diet/ high protein diet but it’s really hard when he doesn’t want to eat so I have to give him the unhealthy stuff sometimes– which he wont eat now anyway. But he was doing really well eating Dr. Kelsey’s brand of cat food before his decline).
PS: is it safe to take him off of such a high dose of Fenbendazole without tapering?
Also, Dr Makis recommended Essiac Tea supplements but every time I consider that option, I am conflicted on if it is something that could make his situation worse.
Thank you for taking your time to read this. I am truly grateful that this platform exists because I do not know where else to turn to. My little boy is my whole world and I want him to feel better.
Hello, we are really sorry your cat and you are going through this.
Stopping abruptly is safe. Fenbendazole doesn’t cause physiological dependence, so tapering isn’t required.
After long or high-dose use, it’s sensible to re-check liver enzymes, total protein, and albumin about a week later; those values often improve once the drug pressure is removed.
Anemia in feline lymphoma often reflects marrow suppression from the cancer itself or chronic inflammation, not only nutrition.
Low albumin can come from protein loss through the gut wall (common with gastric masses), reduced liver synthesis, or poor intake.
These are signs of systemic burden, not necessarily of one supplement or medication.
S-adenosyl-L-methionine (SAMe) and silybin (milk-thistle extract) are the best-studied hepatoprotectants in cats.
They’re used in veterinary products such as Denamarin® or Denosyl®.
– They don’t meaningfully block iron absorption when given hours apart from meals or injections.
Omega-3 (which you already use) is also liver-friendly and anti-inflammatory.
Keep hydration up; mild subcutaneous fluids can help if appetite is poor.
CBD: data in cats are limited. The main concern is that it inhibits cytochrome P450 enzymes, slowing steroid metabolism and potentially intensifying prednisolone’s effects (more thirst, appetite, muscle loss). If tried, it should start at very low doses (≈0.1–0.25 mg/kg once daily) under veterinary monitoring.
Curcumin: generally safe but may slightly reduce iron absorption. Giving it several hours away from iron injections largely prevents that. If it causes nausea, stop.
Never start both new supplements at once—add one, wait a week, observe.
Another ultrasound and full CBC/chemistry panel are important now that he’s off fenbendazole. The pattern of change (growth, ulceration, or fluid) will guide whether comfort-focused care, low-dose chemotherapy (e.g., chlorambucil + prednisolone), or supportive therapy alone makes sense.
Hi there, thanks for this website and the valuavble info! My niece was recently diagnosed with Pancreatic cancer. She had a distal pancreatectomy in July this year. She needs 11 rounds of Platinum Folfox chemotherapy. She has finished round 3 now. Her symptoms from the chemo are getting worse. I’ve done alot of research on Ivermectin and Fenbendazole and want her to start on a protocol as soon as possible. The problem is that her Oncologist said that she should not use Ivermectin with this specific chemo type(Platinum Folfox). Can you provide any feedback on this regard? Could you also provide a specific protocol? She weighs 80kg.
Dear Ren,
Thank you for your message and for sharing your niece’s situation. We understand how challenging this time must be for her and your family.
At this time, wae do not have reliable, evidence-based information regarding the use of Ivermectin in combination with chemotherapy, including the Platinum Folfox regimen. Therefore, we cannot comment on its compatibility or potential interactions.
Regarding Fenbendazole, it has been studied in various preclinical models for its potential effects on cancer metabolism and cell regulation. For those who wish to explore this compound further, accurate dosing and product purity are essential. You can use our Fenbendazole dosage calculator to determine an appropriate, weight-based approach here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
It is generally advised not to take Fenbendazole for a few days before, during, and for a few days after chemotherapy sessions to minimize potential strain on the liver and allow the body to recover. After this short break, Fenbendazole may be resumed as tolerated.
Each person’s situation is unique, so careful observation and a gradual approach are important whenever introducing any additional compounds during ongoing cancer treatment.
Good day and thank you for all the information here.
I took half 444mg of femben for 4 days then had to go on antibiotics right after that. Now not sure what caused me to feel not so great after starting the antibiotics so my question is, when I try fenben again should I start with the same dose? I have 444mg caps but don’t want to over do it as I’m new to it. I’m 55 , 6’2″ and 250lbs.
I wanted to try fenben for its antiparasitic benefits and wanted to do a course of it , then another three weeks later not planning to do the weekly protocol.
Thank you again for your time and all of your information.
Thank you for your message and for sharing your experience.
Since you’re new to fenbendazole and recently had antibiotics, it’s understandable to go slowly when restarting. Many people start with a lower introductory dose—for example, 222 mg per day (half of your capsule) for a few days—to see how their body responds before moving up. Given your weight (250 lbs / ~113 kg), the standard reference dose for fenben use would usually fall around the 444 mg range, taken once daily with food containing fats to support absorption.
If your earlier reaction happened right after starting antibiotics, it may have been related to gut microbiome changes or detox effects, not necessarily fenbendazole itself. Still, restarting gradually is the safest approach.
Thank you very much for your reply, I finally got back on here to reply, I’m thinking it was more than likely the antibiotics and with that said, I will try the 222mg for 4 days again and see if there is those symptoms reoccur. Not too worried about it, it was this group that helped me get to the point of trying this anyway so should be good. And so, one more round at 222 and if that goes well I’ll get to the 444 mark a couple times year.
Thank you for your time and I really appreciate you reply. I’ll let you know how all works out.
Hello, Jon!
Glad to hear you are giving it another try and that the symptoms have settled. Keep us updated on how it goes- your feedback helps others, too.
Hi, I’m new to your site, thank you for all you do! I give my current 50lb pup 5 grams of canine dewormer. I just rescued a100 to 120lb pup. I’m having a hard time with the math. Calculator says 2272mg could you please confirm how much to give her for parasite treatment. I’ll be getting her weighed tomorrow so guessing on the weight. But would like to get the proper amount 2722mg is the calculation how many 4g boxes will I need. Thank you
Hello, Donna.
For a 100–120 lb dog, the typical fenbendazole dose for parasite treatment is 50 mg per kg (22.7 mg per lb) once daily for 3 consecutive days.
100 lb × 22.7 mg = 2,270 mg (≈2.27 g) per day
120 lb × 22.7 mg = 2,724 mg (≈2.72 g) per day
So yes, your calculation of about 2,272 mg is correct for a 100 lb dog.
If you’re using the Panacur C 4-gram boxes (each containing 4 g = 4000 mg of fenbendazole powder per box), you’ll need:
About ½ to ⅔ of a box per day for a 100–120 lb dog.
Each box lasts roughly 1.5–2 days, so for a 3-day treatment, you’d need 2 boxes total to be safe.
Once you get the exact weight tomorrow, you can fine-tune the dose, but you’re already very close to the correct range.
Is it effective to mix all together one packet Panacur C, 222mg Fenbendazole Granules, with one heaping tablespoon FAGE 5% Fat yogurt and one heaping teaspoon coconut oil, and then eat it following a regular meal. This is for myself, not an animal.
Dear Patrick,
The effectiveness of fenbendazole is not determined by the specific type of food it is mixed with but rather by ensuring that it is taken with some form of dietary fat to improve absorption. Mixing fenbendazole granules with yogurt and a small amount of coconut oil is generally considered acceptable, as both contain fats that can help with bioavailability. It is also advisable to take it after or together with a regular meal, since fat-containing food aids in the compound’s absorption and may help reduce potential gastrointestinal discomfort. However, it is important to ensure that the total dosage is appropriate for human use and that the product purity is verified through independent laboratory testing before consumption.
I realize that restricting sugar is a good thing for cancer, but what about the sugar in fruits? I eat a lot of blueberries, raspberries, pineapple, grapefruit, bananas, and apples. Do I need to stop eating fruits? I am finding the discussions about correct dosages somewhat confusing when I see many sources of 222 fenben but see some people say they are only half that amount, with the other half fillers. Also, what does the CBD actually add? Do you know of any cheap good sources of bulk Fenben, and do you know if any health plans cover the cost?
Hello, Jeff. Thank you for great questions.
1. You don’t need to completely cut out fruit.
The main concern is refined sugar and excess carbohydrate load — not the small, fiber-bound sugars in whole fruits. The key is to keep overall daily sugar and starch intake low enough to avoid fueling glycolytic too much.
2. 222mg is considered safe dose to use for a long periods with no or minimal side effects.
3. CBD’s role: it’s mainly supportive — anti-inflammatory, anxiolytic, and sometimes used to improve sleep or appetite. It may also modulate cell-signaling pathways linked to tumor progression and enhance the tolerability of fenbendazole.
4. Lots of people buy merc product like panacur or safeguard packets (there is only 22-10% fenbendazole in them – the rest is a filler), others buy pure 99% fenbendazole with no fillers. If saving money and financial situation are important factors, then it’s better to buy pure fenbendazole. That’s why most people prefer to buy from reputable brands with their own official websites, such as Fenben Lab or Fenzol. Buying directly from official websites also usually comes with a money-back guarantee, customer support, and reliable delivery, which you rarely get when purchasing through third-party sellers.
Hello, Troy.
Full-spectrum CBD is generally preferred.
It contains the full range of cannabinoids (including trace THC < 0.3%) and terpenes that can enhance anti-inflammatory, anxiolytic, and potentially anticancer actions.
Broad-spectrum (THC-free) is an alternative if THC must be avoided for legal or personal reasons.
CBD isolate has the weakest synergy and is least preferred in this context.
God bless
Good Afternoon,
My mom is 77 years old and has been diagnosed with aggressive T2 cancer in the bladder. She had a double bypass on her heart a couple years ago so she takes 25mg of Metoprolol and 10mg of Atorvvasptin cholesterol medication per day. Is there any drug interaction with the fenbendazole 222 protocol that you would be concerned about if she were to start it while details are being worked out for her radical cystectomy procedure to come? Thank you in advance.
Hello Jimmy,
Fenbendazole is metabolized mainly in the liver and has shown anticancer activity by interfering with tumor cell metabolism and microtubule formation. At the standard protocol dose of 222 milligrams daily, it is generally well tolerated. Your mother’s medications, metoprolol and atorvastatin, are processed by cytochrome P450 enzymes (CYP2D6 and CYP3A4, respectively). Fenbendazole is not known to inhibit or induce these pathways in a clinically meaningful way, so direct interactions are unlikely.
The main consideration is that all three compounds are metabolized hepatically, which means careful monitoring of liver function is important, especially since statins alone can occasionally raise enzyme levels. Fenbendazole does not interfere with cardiovascular regulation, so no added concern exists with metoprolol. Overall, the risk of drug interaction is low, and the focus should remain on watching liver function and supporting it with agents such as milk thistle or curcumin if tolerated.
Good day-
If taking fenben for parasite cleanse, and taking initial dose on calendar dates 1-5, what calendar dates should the next 5 day cycle be taken?
Hello Ben,
For a parasite cleanse, fenbendazole is often taken for 5 consecutive days and then repeated every 3 weeks. If the first cycle is on days 1–5, the next cycle would usually be on days 24-28.
My mom has DLBCL that penetrated to CNS. 68yo, 163cm, 62kg. Two weeks ago we started with 222mg fenbendazole 6 days on / 7 day off + Curcumin 500mg twice per day + CBD before sleep. All supported with crushed milk thistle, one small teaspoon twice per day. What is your opinion about increasing amount to 444mg since she tolerate the current dosage without problem ?
Dear Tom,
Thank you for sharing the details regarding your mother’s current regimen.
According to our dosage calculator, for a body weight of 62 kg the recommended standard dose of fenbendazole is 222 mg daily, which corresponds to a conservative and commonly applied range.
If this dose has been well tolerated, a gradual increase to 444 mg daily may be considered. This would correspond to approximately 7 mg/kg, which remains within the empirically reported safe range. Such an adjustment is reasonable as long as tolerance remains good and liver function is monitored to ensure safety.
The supportive supplements you are using – curcumin, CBD, and milk thistle – are consistent with commonly used adjuncts. Nevertheless, it is important to monitor hepatic enzymes (AST, ALT, ALP, bilirubin), since both fenbendazole and several supplements are metabolized in the liver.
Good morning, Doctor, as I mentioned some time ago, I continue to lose a lot of hair. I stopped taking mebendazole as per protocol (1500 mg daily) and am restarting the fenbendazole (444 mg 3 times daily), which I was already using before and after colon surgery in May 2025. Unfortunately, however, I continue to lose hair. I’m wondering if I can reduce the amount of fenbendazole: 444 or 888 mg daily, no longer 1332 mg. I take invermectin (I’m wondering if I can reduce this too). I take zinc, milk thistle, boron, vitamin C, vitamin D3, and K2 MK7. I’ve also recently started taking quercetin. I’ve also noticed that my urine smells strongly of ammonia. Can you tell me what to do? In mid-October, I’ll have blood tests and two CT scans of my abdomen and chest with contrast. Thank you. Sabina
Dear Sabina,
From what you have described, the amount of fenbendazole you are currently taking is much higher than what is generally considered safe. The best way to determine the appropriate dose is by using the official dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. Based on weight, the daily dose is most often 222 mg or 444 mg, following the six-days-on and one-day-off schedule, and not 1,332 mg. The strong ammonia-like odor in your urine may be a sign of liver stress, which makes it especially important to return to a standard dose and continue liver support with milk thistle or TUDCA. Ivermectin should also be taken strictly according to body weight, about 0.2 mg per kilogram, and higher exposures should be avoided. Until your scheduled tests in October, the safest course is to stay within weight-based dosing guidance and monitor your condition closely.
Hair loss has occasionally been reported with benzimidazole drugs such as fenbendazole and mebendazole, especially at higher or prolonged dosing. While this effect is not common, it can occur when the exposure is above the typical range. By reducing fenbendazole to a calculator-guided dose and supporting liver function, the risk may decrease, although hair growth often takes several weeks to stabilize. Other factors, such as stress, nutritional status, or prior treatments like surgery or chemotherapy, can also play a role, which makes it difficult to identify a single cause. For now, the most important step is to return to safe, weight-based dosing, maintain your supportive measures, and let your upcoming tests provide clearer answers.
I started Fenbendazole 6 days per week about 2 months ago at the same time I started a KETOgenic diet. my latest blood work shows macrocytic anemia. Would this be from the KETO diet or can this happen from Fenbendazole?
Hello Car,
Macrocytic anemia is generally defined by the presence of enlarged red blood cells (increased mean corpuscular volume, MCV) and may arise from several well-established mechanisms. The most common etiologies include deficiencies in vitamin B12 and folate, alcohol use, certain medications that interfere with DNA synthesis, liver disease, and, more rarely, bone marrow disorders.
The ketogenic diet has the potential to contribute indirectly to macrocytic anemia. If dietary intake of folate or vitamin B12 becomes insufficient due to restricted food groups, or if absorption is impaired, megaloblastic changes in the bone marrow can occur, resulting in macrocytosis. In addition, high fat and low carbohydrate patterns may alter gut microbiota, which can influence vitamin metabolism and absorption.
Fenbendazole is a benzimidazole compound primarily studied for antiparasitic use. Its mechanism of action involves disruption of microtubule formation through binding to β-tubulin. While preclinical data suggest some off-target effects in mammalian cells at high concentrations, there is no documented evidence in the published literature that associates fenbendazole with the development of macrocytic anemia. Reported adverse effects in humans are sparse and generally involve gastrointestinal upset or, in rare cases, hepatotoxicity. Macrocytosis has not been described as a recognized effect.
In summary, current evidence suggests that the ketogenic diet is a more plausible contributor to macrocytic anemia through micronutrient deficiencies, whereas fenbendazole is not known to induce this hematologic change. A careful evaluation of vitamin B12, folate, and related parameters (homocysteine, methylmalonic acid) would be informative in determining the underlying cause.
My mother is in the terminal stage of pancreatic cancer, with metastasis to the liver and other abdominal sites. The pancreatic head tumor is about 9 cm and is severely compressing the stomach and duodenum. She is unable to eat, and the nasogastric tube is used only for drainage of vomit and decompression.
She also suffers from cachexia, extremely thin, and is maintained only by IV nutrition. Because of the tumor compression, she vomits about 800–1200 cc per day, has very little urine output (400–500 cc/day), and has not had a bowel movement for almost two weeks. She is drowsy most of the time but still conscious.
Two months ago, the doctors already informed us that there is no curative treatment available, only palliative care.
Currently, I am trying the following protocol:
09:00 AM – 5cc 70% DMSO + Ivermectin 24mg, applied topically on the skin over the tumor for 1 hour
01:00 PM – 5cc 70% DMSO + Fenbendazole 444mg, applied topically over the tumor for 1 hour
06:00 PM – 5cc 70% DMSO + Vitamin D3 10,000 IU + Vitamin K2 360 mcg, applied topically over the tumor for 1 hour
09:00 PM – 5cc 70% DMSO + Ivermectin 24mg, applied topically over the tumor for 1 hour
However, since she cannot eat or drink and has not passed stool for two weeks, I am very worried that drug metabolites cannot be excreted properly and may accumulate, causing harm.
Is there anything wrong with my approach? Do you have any better suggestions? I would be deeply grateful for your advice. Thank you.
Hello, and thank you for a question.
Your thinking is correct. Fenbendazole and ivermectin like most drugs, is processed in the liver and eliminated mostly through the bile and stool. If someone has not had any bowel movement for two weeks, that means both toxins and drug metabolites can accumulate. In this setting the risk of liver stress and systemic side effects goes up. A better approach in this situation is not to push fenbendazole, but to first address the severe constipation or obstruction and support hydration and nutrition. If the patient is at the end stage of illness and unable to swallow or pass stool, it may be time to reconsider whether continuing fenbendazole, ivermectin and DMSO is appropriate at all.
Hello, my mother had a bowel movement today, but it was very watery and in large volume.
At the moment, I am using Ivermectin (IVM) and Fenbendazole (FBZ), combined with 5cc of 70% DMSO mixed into a liquid and applied on the skin over the pancreatic head tumor, in hopes of enhancing local absorption into the tumor area.
May I ask if this dosage and method of administration are appropriate or feasible for her current condition?
I would be deeply grateful for any advice or guidance. 🙏
Hello again, and thank you for a follow up.
Using 5 cc of 70% DMSO on the skin sounds quite strong, but can be okay if her blood results are in normal range. Please monitor any effects like worsening diarrhea or dehydration. Also monitor any new side effects like: skin irritation or rash, changes in liver tests, new neurologic symptoms (numbness, tingling, weakness). If there are none of them, you may continue.
Good afternoon I contacted you in July on my 10 year old black lab. I would like to inform you that he has been on.222 for eight weeks. The tumor has shrunk almost 50% in the bladder.. we are going on vacation what we mix 222 with is hamburger meat 70/30 fat and wait 10 minutes can I mix golf ball size hamburger with the 222 and freeze it while we’re away to make it easier for the dog sitter so the question is really can I freeze it and would it stay 100% potent ?
You have been an incredible help thank you
Richard
Hello, Richard. We are really glad to hear the tumor has shrunk that much, that’s a very encouraging sign!
If you blend or knead the capsule/powder into raw hamburger, then freeze, the fenbendazole will remain stable and potent. The only thing that changes is the meat texture after thawing- not the drug. Fenbendazole is a highly stable compound; therefore, freezing down to –20 °C or heating up to 70–80 °C does not affect its stability. It is recommended to allow the meat to thaw naturally before administration and to avoid reheating it in a microwave.
That is fine if she tolerates it well. Do not forget to monitor liver enzymes every few months and if all is at normal range, you may continue the protocol.
Good morning
We are looking at the oral liquid. We’ve been reading a few articles on giving FENB In a liquid form, would you recommend that also we’ve been reading on olive oil that increases the potency getting to the bloodstream do you feel that is true and can you take the liquid six days a week
Hello, and thank you for your message.
Oral liquid fenbendazole is an appropriate route provided the concentration is known and the dose is measured in milligrams of active fenbendazole (not only milliliters). Because fenbendazole is lipophilic and poorly soluble in water, gastrointestinal absorption improves when it is taken with dietary fat. Mixing the measured dose with a small amount of olive oil or giving it alongside a fatty snack is a reasonable way to enhance dissolution and increase systemic exposure; the bottle should be shaken thoroughly and the dose drawn with an accurate oral syringe for consistency.
Regarding days of use, the frequency depends on the objective. For active disease, many long-term protocols use a 6 days on / 1 day off schedule to maintain continuous pharmacologic pressure with a brief recovery interval. For maintenance once stable, people often step down to gentler cycles such as 4 on / 3 off or 3 on / 4 off, monitoring tolerance. Whichever schedule is chosen, keep the same daily milligram amount on each “on” day, co-administer with fat for bioavailability, and resume the identical daily dose after the planned rest day.
In summary: liquid administration is acceptable if precisely measured; pairing with olive oil or another fat is mechanistically sound for absorption; and six days per week with one day off is a commonly used schedule for active cases, with lighter cycles for maintenance.
Richard September 16, 2025
Thank you very much for replying. I have one other question for you. We have Finn Ben 222. Can we give the dog two 222 which would equal 444
Good evening
I would like to try FENBEN 444 with Ivermectin we are on 444 now four months it seems that the tumor got a little bigger Do you have a protocol for combining both of them together and have you seen good results on them? We have a 55 pound black lab with bladder cancer we are giving her now Tumeric w/ curcumin, milk thistle and D3. We were originally giving her the fenben with ground beef 70/30% fat. Then we switched to olive oil which she hated. We then went to butter which was no problem but it seems tumor may be getting larger but won’t know for sure til next week. She did develop a UTI which is being treated w/ antibiotics at this time. Which would you recommend to mix fenben—ground beef or butter and is time of day preferable over another
Fenbendazole.org October 20, 2025
Thank you for reaching out and for sharing the details of your dog’s case. We understand how difficult it can be to navigate these choices, and we appreciate your careful attention to every aspect of her care. Many individuals choose to use ivermectin and fenbendazole together, whether as part of their own health approach or in the treatment of animals. However, we do not provide or endorse a specific combined protocol, as our platform focuses solely on information and resources related to fenbendazole. Each compound has been studied individually in various experimental and veterinary contexts, but there is not yet reliable data regarding the efficacy or safety of using them together for cancer in animals.
Fenbendazole can continue to be administered with a small amount of dietary fat to help absorption. Most owners find that mixing the dose with a familiar, palatable food – such as ground beef or a small amount of butter – works well as long as the total daily dose is consistent and the dog tolerates it without digestive issues. The choice between beef and butter can depend simply on what the animal prefers and digests best. Ground beef (with moderate fat content) is often better accepted and provides adequate fat for absorption.
There is no specific time of day that has proven more effective for administration. What matters most is consistency – giving the supplement at roughly the same time each day and ensuring it is taken with food.
Good evening
I see on X Joe came up with a new protocol
Is that really him on X or somebody else
And what would it do with dogs 55 pounds
And how to take
Hello, Richard, and thank you for a question.
We can not verify if this is really the original profile of him, but as we have seen, there are MANY facebook profiles of him and also have seen a few on X as well. Also he have mentioned in one of his videos, that there are lots of people impersonating him, trying to make money of his name. So be careful online, because you can sometimes be mistaken.
Now for a 55 pound dog you would need around 1247mg once a day for 5 days if you are looking for deworming, and for cancer 444mg 4 days on 3 days off for continuous period.
Hello, Richard.
There is very limited evidence (primarily animal or in vitro) regarding the use of fenbendazole in lung or airway disorders, so the following is more of an exploratory summary rather than a clinical recommendation.
Fenbendazole has been shown in animal models to attenuate lung fibrosis via anti-fibrotic mechanisms in a toxic lung injury model (bleomycin) in mice. COPD involves elements of fibrotic remodelling (especially in small airways) and chronic inflammation.
One might hypothesize that fenbendazole could exert some modulatory effect on the fibrotic/remodelling component of lung disease. For example:
By inhibiting fibroblast-to-myofibroblast transition and collagen deposition, fenbendazole might slow airway/fibrosis remodelling.
By moderating glycolytic metabolism in fibroblasts (as shown in the mouse fibrosis model), it might affect the metabolic reprogramming of lung fibroblasts in chronic lung disease.
Fenbendazole also has anti-inflammatory or oxidative-stress modulating effects, so it might address aspects of COPD pathophysiology.
I bought Fenben paste (equine) 10% for parasites. My inflammation is off the charts (C-Reactive Protein was over a 10), and my gut health is terrible…constant soft stools/diarrhea/cramping. Everything I see talks about dosage for the pills. What would be the dosage for the paste,and how often? Should I also be taking Iver paste as well? If so, how much, and how often? Do I need activated charcoal? How much/how often?
Also, my friend’s doc just called and said his bloodwork came back with malignant cells, confirming his worst fear of having some kind of cancer. He has to wait for an appointment to find out any details of what kind it is. He wants to start taking something ASAP, as he will NOT do chemo or radiation. What should he start with? He would prefer the paste, since it’s the most affordable and easiest to get.
Hello April,
Thank you for your message. Fenbendazole paste (10%) contains 100 mg of fenbendazole per 1 gram of paste. To know the correct amount, the most reliable way is to use the dosage calculator at https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
For example: If the calculator indicates a daily dose of 222 mg, this equals about 2.2 g of paste. If the calculator indicates a daily dose of 444 mg, this equals about 4.4 g of paste.
The main challenge with paste is that it is not made for precise human dosing, and the fillers it contains can sometimes cause additional gastrointestinal irritation. For this reason, pure fenbendazole in capsules or powder form is a better choice – it allows exact dosing and avoids unnecessary additives that may worsen diarrhea or cramping.
Because you are already experiencing diarrhea from fenbendazole, it would not be advisable to add ivermectin at this stage. Ivermectin often increases gastrointestinal side effects and may aggravate your symptoms. For now, it would be safer to stabilize with fenbendazole alone.
Activated charcoal can be useful in certain cases, but it also binds nutrients and other compounds, so it must always be taken separately from supplements or food (several hours apart). It is not essential to combine with fenbendazole in every case.
Regarding your friend: it is understandable that he is anxious after hearing about malignant cells. However, starting treatment before knowing the exact type and stage of cancer is risky. If he chooses to begin, the same advice applies – capsules or powder forms of fenbendazole are far more suitable than paste, since dosing is accurate and tolerance is better. In the meantime, he can also focus on general supportive measures such as a clean diet, reducing sugar intake, and supportive supplements (vitamin D, curcumin, omega-3, milk thistle for liver support). This would be a safer way to prepare while waiting for more information.
I have already started my protocol with fenbendazol+Ivermectin for breast cancer but I would like to add CDS (chlorine dyoxide solution). Could you please tell me if those 3 mediactions are compatible to use together ? I will also use DMSO (topical on the breast).
Thank you in advance.
Annina
Hello Annina,
Thank you for your message. Fenbendazole and ivermectin are often used together, and there are no clear reports of incompatibility between the two. Both are processed through the liver, so supporting liver health is always a good idea. Chlorine dioxide solution, however, has not been studied in combination with these agents, and the scientific literature does not provide evidence for its safety or effectiveness in this context. DMSO has been explored as a topical carrier and does have unique properties, but again, data on using it together with fenbendazole, ivermectin, or CDS are very limited. Many people do experiment with combinations, but it is important to make changes carefully, one step at a time, and observe closely how the body responds. While research is still lacking, your commitment to building a thoughtful and comprehensive approach is clear, and we hope it brings you strength moving forward.
Thank you so much for the invaluable information on this site. Are you able to advise where I may be able to obtain some DMSO from please? I live in the northern part of Australia.
Unfortunately, we do not do product advertising, so we usually try not to avoid mentioning specific brands. Also we have not tested any DMSO products ourselves, so we can not ensure the purity and quality.
I have a nine-year-old border collie diagnosed (via x-ray) with primary bone cancer (most likely osteosarcoma) in his rear leg. Do you have any reports of the fenbendazole protocol working for primary bone cancer? If so, does Curcumin given in combination with fenbendazole help increase the efficacy of the treatment for bone cancer and what would be the recommended dosage?
I’ve also heard that turkey tail mushrooms used with fenbendazole can help with bone cancer as well. Do you have any thoughts/reports on that?
Any advice you have on this would be MUCH appreciated.
Dear Heather,
Thank you for your message. At present, the available evidence on fenbendazole for canine osteosarcoma consists primarily of preclinical studies and some reports. Fenbendazole has shown antitumor activity through microtubule destabilization and interference with glucose metabolism. Relevant studies include: https://pubmed.ncbi.nlm.nih.gov/30093705/ https://www.researchgate.net/publication/326921090_Fenbendazole_acts_as_a_moderate_microtubule_destabilizing_agent_and_causes_cancer_cell_death_by_modulating_multiple_cellular_pathways
Curcumin has been widely studied for its anti-inflammatory and pro-apoptotic properties, and it may enhance the effect of microtubule-targeting agents such as fenbendazole. In canine practice, the suggested dosage range is 80–200 mg/kg daily, usually divided into two or three doses with food. Bioavailability can be improved with co-administration of piperine (from black pepper) or lipid formulations. See: https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-6-10 https://pmc.ncbi.nlm.nih.gov/articles/PMC3604998/
Turkey tail mushrooms (Coriolus versicolor, Trametes versicolor) contain polysaccharopeptides such as PSK and PSP, which have immunomodulatory and antitumor effects. Veterinary oncology literature documents improved survival and delayed metastasis in dogs with hemangiosarcoma when polysaccharopeptides were used as a single agent: https://pubmed.ncbi.nlm.nih.gov/22988473/
While these agents are promising, it is important to emphasize that standardized, evidence-based protocols for osteosarcoma have not yet been established. Most current practices are based on extrapolation from laboratory studies and individual clinical experiences.
Is it normal for the CA markers to increase after you start the fenben protocol?
A month ago the CEA markers were below the range of 5 and steady for several months. Since, we started the protocol last month the CEA markers have shot upto 7.80. Is this normal?
Dear Soni,
Thank you for your message. A rise in CEA after starting a new regimen can occur and does not automatically indicate lack of effect. CEA is a non-specific marker and may fluctuate due to laboratory variability, transient inflammation, changes in liver function, smoking, and other benign factors. There is no established evidence that fenbendazole consistently raises CEA; a change from <5 to 7.80 over a month can fall within expected variability. The sound approach is to repeat CEA in 2-4 weeks at the same laboratory, assess the trend over several measurements, and keep the regimen stable while you observe.
For fenbendazole, please calculate and follow the recommended dose and schedule with our calculator - do not exceed the suggested amounts: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. Take doses with food that contains some fat and maintain good hydration. To support the liver while on the protocol, you may consider adding – one at a time – silymarin (milk thistle) 150 – 300 mg once or twice daily, N-acetylcysteine 600 mg once or twice daily, TUDCA 250 mg once or twice daily, taurine 500–1000 mg daily, and omega-3 (EPA+DHA) 1–2 g daily; maintain adequate protein intake, limit alcohol, and monitor liver enzymes periodically.
First, thank you for the remarkable work you are doing.
I came across your site while researching a fenbendazole protocol for my beloved 16-year-old senior dog.
During her preoperative examinations for recent dental surgery, a thoracic X-ray revealed what appear to be fast-growing lung metastases. While she was under anaesthesia, a head CT scan was also performed, which likely identified the primary tumour in her brain — a neoplastic process with osteolysis of the left ethmoid bone and new intracranial bone formation, suspected malignant neoplasia.
Neither of these incidental findings seems to be affecting her significantly at present. We suspect the brain lesion may have been there for many years and was only discovered now. However, based on the lung images, the surgeon who performed her dental procedure has given her only a few weeks to live.
For this reason, I am eager to begin a fenbendazole/ivermectin protocol as soon as possible. I have contacted numerous veterinarians, both conventional and holistic, but have not found anyone with direct experience in this area. I therefore assume I may need to start on my own — yet there is so much conflicting information on canine protocols and dosages that I am honestly confused.
For example:
* A specialised Facebook group recommends 5–10 mg per kg of body weight per day.
* Dr Andrew Jones, on the other hand, uses two different regimens:
• High dose: 50 mg/kg once daily, 3 days on / 4 days off
• Low dose: 10 mg/kg once daily, given without interruption
I also cannot find much reliable information on the protocol and dosage for the complementary supplements in dogs (curcumin, CBD, vitamin E, milk thistle).
What is your perspective on the most effective and safe approach in a case like hers?
Dear Barbara,
Thank you for writing to us and for your trust. We understand how challenging it is to face such a diagnosis in a beloved senior dog.
For fenbendazole, most scientific sources describe a safe daily dose of about 5-10 mg per kg of body weight. To make this simple, please use our dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
It will show you the correct amount based on your dog’s weight. Over time, if your dog tolerates it well, the dose can be increased gradually, up to about double, but always step by step and with close observation.
As for supplements, published data for dogs is limited, but from general veterinary use these approximate daily ranges are considered safe:
Curcumin: ~100-200 mg per 10 kg body weight
CBD oil: ~0.25-0.5 mg per kg (can be divided into 2 doses)
Vitamin E: ~5-10 IU per kg
Milk thistle (silymarin): ~50-100 mg per 10 kg
Introduce them slowly, one at a time, so you can monitor tolerance.
We recommend starting with the standard fenbendazole dose from the calculator and adding supplements gradually. This stepwise approach is usually the safest and clearest way forward.
Hello, Debra.
In the Joe Tippins protocol, CBD oil is mainly for its anti-inflammatory and immune-supporting effects. Also to help with symptoms like pain, anxiety, and sleep, rather than directly killing cancer cells.
Can Fenbendazole (and ivermectin) be taken in conjunction with the daily oral chemo drug cyclophosphamide and the immunotherapy drug Keytruda?
THANK YOU for this website and the plethora of information and help you provide!
Dear Candace,
Thank you for your thoughtful question, and we truly appreciate your kind words about the information provided on the site.
Regarding the use of fenbendazole and ivermectin alongside oral cyclophosphamide and Keytruda (pembrolizumab), there are currently no officially documented or confirmed interactions between these medications. Many individuals exploring integrative approaches have taken fenbendazole and ivermectin in combination with standard therapies, including chemotherapy and immunotherapy, often with the goal of supporting metabolic stress and immune modulation.
That said, while fenbendazole is generally well tolerated and considered low in toxicity, and ivermectin can be tolerated in moderate doses, it is strongly advised not to take either of these on the same day as chemotherapy or immunotherapy. A common and cautious practice is to pause both fenbendazole and ivermectin for at least two days before and two days after each chemotherapy or immunotherapy session. This window allows the body to focus on metabolizing and responding to the primary treatment without introducing additional compounds that may place extra demand on the liver or immune system.
It is also important to consider liver support during any combination protocol, especially if using agents like cyclophosphamide, which can affect liver function. Supplements such as TUDCA, milk thistle (silymarin), or NAC are frequently included to help protect and support liver detoxification pathways.
In summary, yes – fenbendazole and ivermectin are often used in conjunction with oral chemo and immunotherapy, but with clear timing adjustments. Pausing them around treatment days is a widely followed precaution to help minimize any potential overlap in metabolic burden.
Thank you so very much for your reply and the information. I do have a couple follow up inquiries.
1. I am currently taking milk thistle. Should I add one of the other supplements you mentioned (TUDCA or NAC), or will the milk thistle suffice.
2. My most pressing question is regarding the cyclophosphamide. Beginning next week my oncologist is going to have me start taking 50mg of cyclophosphamide DAILY (coupled with the Keytruda infusion every 3 weeks). Since I have to take this oral chemo drug DAILY, does that mean I have to stop taking the Fenben and ivermectin? Ugh!
Thank you, thank you, thank you for your guidance!
Candace,
Thank you for clarifying your follow-up questions. Regarding liver support, if you are already taking milk thistle, it can indeed be beneficial due to its silymarin content, which supports hepatocellular protection and detoxification pathways. However, TUDCA and NAC offer complementary mechanisms of action. TUDCA assists in bile acid regulation and can help reduce cholestatic stress on the liver, while NAC acts as a glutathione precursor, enhancing the body’s primary antioxidant defense system. Using milk thistle in combination with either TUDCA or NAC may therefore provide broader support than milk thistle alone, though it is not mandatory if your liver function is stable and your supplement regimen is otherwise sufficient.
As for the daily administration of oral cyclophosphamide alongside Keytruda infusions, the main consideration with fenbendazole and ivermectin is to avoid overlapping their administration directly with chemotherapy or immunotherapy sessions to reduce potential additive metabolic load on the liver and immune system. When the chemotherapy agent is taken daily without rest periods, this overlap avoidance becomes more challenging. In such cases, some individuals choose to reduce the frequency or temporarily pause fenbendazole and ivermectin, then reintroduce them in a modified schedule when metabolic demands from the primary treatment allow for it. This is not due to documented drug to drug interactions, but rather as a precaution to minimize cumulative physiological stress and allow the body to focus on metabolizing and responding to the primary therapy.
I have a 7-year-old, 30kg dog who had a hemorrhaging hemangiosarcoma removed from his spleen. He’s currently undergoing chemotherapy to delay metastasis. I’m unsure which protocol to use: 222mg for prevention or 444mg for aggressive cancer?
Dear Carolina,
For a 30 kg dog with a history of splenic hemangiosarcoma and ongoing chemotherapy to help delay metastasis, determining the correct fenbendazole dosage depends on whether the goal is purely preventive or directed toward active cancer control. Since hemangiosarcoma is highly aggressive and the risk of metastasis remains significant even after surgery, many protocols lean toward dosing in the active cancer range rather than the lower preventive range, especially during or immediately after chemotherapy.
To establish the most accurate dose and schedule, it is best to use the official fenbendazole dosage calculator, which factors in the dog’s exact weight and the intended purpose (prevention, relapse prevention, or active cancer). The calculator will also provide a proper dosing schedule: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
Using the calculator will ensure that the dosage is tailored correctly to your dog’s weight and treatment goal while minimizing unnecessary strain on the system during chemotherapy.
I have a 70 lb Husky that had liver cancer 2 years ago. I do an annual ultrasound and X-rays to check to see if still clear. Last ultrasound was February. Should he be on Fenbendazol as a maintainence or not? I’m just concerned about liver enzymes. Also how much if so 444 or 222 ?Please advise.
Thanks
Jennifer Raffo
Hello Richard,
Considering your dog’s history of liver cancer, fenbendazole can be used as maintenance, but it is important to monitor liver enzymes, as mild elevations can sometimes occur, especially with a history of liver issues.
To determine the correct dose for the dog’s weight and purpose (preventive versus therapeutic), it is best to use this calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. It is also advisable to add milk thistle (silymarin) to help protect and support the liver during use.
Hello, Brooke. Thank you for a question.
Panacur paste is a veterinary product made by Merck, so you can trust that it contains exactly what is listed on the label and meets pharmaceutical manufacturing standards. That gives some peace of mind in terms of quality and consistency. However, the paste also includes fillers and flavorings designed for animals, like apple flavor or starch, which do not add anything useful for cancer treatment. It is also harder to measure an exact human dose unless you use a scale, and the volume needed can be inconvenient. On the other hand, pure fenbendazole powder or capsules contain only the active ingredient, making it cleaner and easier to tailor your dose, especially if you are following a specific protocol like 222 mg. The downside is that it is not officially approved for human use, so you need to be careful about sourcing it from a reliable supplier. In short, the paste is trustworthy in terms of manufacturing, but the pure powder is usually more practical and efficient for human protocols if you can get a good source.
Hello everyone. I have stage 4 CRC with mets to liver, KRAS mutation G12d and have had a right colectomy, a hepatectomy and most recently another hepatectomy and installation of a HAI pump that failed because surgeon found tumors in my abdomen that were not there when I had my most recent PET scan just 1 week prior to surgery. I am going to start Panacur 1 mg fenbenzadole everyday and wanted to know what is the recommeded binder that I should use. Thank you in advance
Dear Elvin,
Thank you for your question. Since you are starting daily fenbendazole and already have significant liver involvement, using both a binder and liver support is a wise approach. For binders, many people use activated charcoal, diatomaceous earth (food grade), bentonite clay, or chlorella to help absorb toxins released during tumor breakdown. These should be taken a few hours away from medications and supplements to avoid interfering with absorption.
In addition to binders, liver support is especially important in your case. Milk thistle (silymarin) and TUDCA are commonly used together to help protect and regenerate liver cells, improve bile flow, and support detoxification through the liver itself. While not binders in the traditional sense, they play a critical role in helping the body handle increased metabolic stress and are frequently used alongside fenbendazole in more advanced cases.
Combining both a binder and daily liver support can help reduce side effects and support the body through treatment.
Have you had any success with Fenbendazole and blood cancers. All of the success stories seen to be only for solid tumors and I was wondering how well it does with systemic cancers. Many of the pathways are similar and all cancers depend on sugar so I am hoping it can have some affect. Is there anything you can share?
Dear Tom,
TThank you for your question. It is true that the majority of publicly available anecdotal reports and case stories involving fenbendazole tend to focus on solid tumors such as those in the lung, colon, or breast. However, the cellular mechanisms targeted by fenbendazole — such as interference with microtubule formation, disruption of glucose metabolism, and oxidative stress induction — are not exclusive to solid tumors. These pathways are also highly relevant in hematological malignancies, including leukemias, lymphomas, and other blood cancers, which similarly rely on altered metabolic and proliferative mechanisms.
While controlled clinical studies specifically evaluating fenbendazole in systemic cancers are lacking, there have been informal reports from individuals who experienced disease stabilization or improvement when using fenbendazole alongside other metabolic and immune-supportive interventions. Because blood cancers are systemic by nature, responses may vary and require careful monitoring. Nevertheless, the theoretical foundation suggests that fenbendazole may have potential benefit in such cases, particularly when paired with an integrated protocol targeting energy metabolism, immune modulation, and oxidative balance.
Double checking on how to weigh out and measure my Panacur Paste. The box states : Panacur Paste 10% contains active anthelmintic, fenbendazole. Each gram of Panacur Paste 10% contains 100mg of fenbendazole and is flavored with artificial apple cinnamon liquid. At 132lbs. treating a benign tumor, I’m going to do 222mg for 6 days on and one day off – if this sounds correct. How can I ensure I’m measuring out 222mg? I’m nervous about dosing size.
Second question : Could I add this to my homemade yogurt (seems it would blend in well). The yogurt has the good bacteria in it, though, is that a problem with delivery or absorption? I tried looking up whether Fenbendazole would kill off healthy bacteria in our gut and the answer I got was no, it should not. If it’s okay to consume in the yogurt, how much fat needs to be in there? I can add some nuts if that would suffice.
Third question: I had my liver markers checked and it seems my AST has recently gone down 2 points below the normal range. My calcium levels have gone down as well and I’m suspicious it could have to do with overdosing myself (stupidly) on way too much Vitamin D supplementation. I was using 50,000 iu D daily for 3 months to try and shrink a uterine tumor (benign, as far as we know) I feel totally fine but my levels got up to 516. I’ve been off Vit. D now for at least a month, to bring it back down. All blood markers were fine (kidneys, calcium) about a month ago. I did recently have more blood work done and the calcium and AST were the only 2 out of range readings. (other than blood glucose was elevated). All this to say, would there be any concern with the calcium or AST being low? I have TUDCA on the way. I’ve been using Milk Thistle but it was recently suggested that it may be estrogenic and my tumor feeds off estrogen so I plan to switch to TUDCA.
Hello, Carre, and thank you for a question.
To get a 222mg dose, you would need to weigh approximately 2.2 grams. The most accurate way would be to measure the dose on a food scale that is sensitive enough.
Addressing the following question. Yes, yogurt is a great way to use the paste or powder. Fat is necessary for absorption, but you don’t need a lot of it, a few teaspoons of oil is enough.
And for the third question: Vitamin D does not usually lower AST significantly.
If anything, high doses of vitamin D can sometimes irritate the liver, potentially causing mild increases in liver enzymes (AST, ALT).
A slight drop in AST is generally not concerning and rarely linked to vitamin D status at all.
Vitamin D toxicity (hypervitaminosis D) usually increases blood calcium (hypercalcemia), not decreases it. This happens because vitamin D promotes calcium absorption in the gut. So there is something else that might cause it, for example it’s worth checking: Magnesium levels – Magnesium is needed to activate vitamin D. Low magnesium can block the effects of D and cause paradoxical symptoms.PTH (parathyroid hormone) – To see how your calcium regulation is functioning.
Thank you so much for your reply. Couple follow ups:
After sending this, I went with the powder to destress my mind about dosage. I will do 222mg.
Does one *have* to do the Ivermectin alongside the Fenbendazole? If so, would you mind telling me again the suggested protocol there? (dosage and days on/off etc.)
I wanted to ask how necessary the CBD oil is? What role is that playing? Is it only for better sleep and lessened anxiety or does it help the entire protocol work better?
Also, the only other recommended supplements are the Curcumin and Vitamin D, and the CBD oil (assuming that is necessary for optimal effect) but for liver support, I am quitting my Milk Thistle for estrogenic concerns (my tumor responds to estrogen) and planned to replace with TUDCA. Would that be sufficient?
And lastly, I want to add in (for my case) Serrapeptase (starting low at 40,000 and seeing how I react) and Nattikinose. I will also be using the EGCG 800mg(green tea extract supplement), Dandelion Root Tea 1-2 x per day, my Vitamin D levels are still off the charts so I’ll just use up what’s in my body (I’m assuming this would be okay?), Vit. K2(M7) 200mg to support all that extra D I accidently filled myself with, few Iodine drops topically, or may use sea kelp supplement, orally, DIM 200mg, VITEX 650mg, and Calcium D Glucorate 500mg. I also drink my magnesium supplements each day, averaging around 400-500mg per day. Do you see any issues or contradictions with any of this?
And, as always, THANK YOU for this invaluable site. I have referred, and will continue to refer, many people over here for the kind and impactful work you’re all doing.
Hello, Carre, thank you for the thoughtful message and kind words. We are truly glad the site has been helpful to you!
To your questions:
1.Great choice for peace of mind on dosing. Many people prefer powder or capsules for consistency and easier measurement.
2.Ivermectin is not strictly required to add. Also ivermectin has more side effects, so monitor your well-being. Dosage: 0.2–0.4 mg/kg, depending on tolerance. Schedule: start at 2–3 days per week.
3.CBD Oil is not essential, but can be very helpful. Its a great sleep and anxiety support. Also CBD may reduce tumor-promoting inflammation and help with pain, nausea, and overall stress response.
4.TUDCA is a smart swap. It is a potent liver protectant without the phytoestrogenic concerns. Many people using hormone-sensitive protocols do the same. It should be sufficient.
5.Additional supplements: Serrapeptase/Nattokinase: Start low, monitor for bruising or bleeding, they slightly thin the blood. EGCG: Powerful, just watch for GI upset or liver sensitivity. High Vitamin D: Yes, use what is stored. No need to add more right now, K2 is wise to include. DIM, Vitex, Calcium-D-Glucarate: All sound for estrogen metabolism support. Magnesium: Great for nervous system and bowel support-well within safe range. Iodine or sea kelp: Gentle support—just monitor how you feel. No issue at low dose.
Sorry, I just submitted a response to this (it’s in moderation now) but wanted to add to my main response that I will also be taking Betaine HCL (hydrochloric acid) with Pepsin 790mg (if tolerated when I take it)
Any issues with that supplement with all the others while using Fenben and Iver (if necessary)
Thank you for the update. Adding Betaine HCl with Pepsin is generally fine with fenbendazole, ivermectin, and everything else you are taking. It can actually help improve digestion and absorption, which is useful when you are on a supplement-heavy protocol. There are no known interactions with Fenbendazole or Ivermectin. If anything, it might support better nutrient uptake, especially for fat-soluble compounds.
Start with one capsule during meals and observe how your body responds. If you notice any burning or discomfort in your stomach, that may indicate the dose is too high or that you do not need it. Avoid using it if you have ulcers, gastritis, or acid reflux issues. Otherwise, it is a solid addition and does not raise any concerns with the rest of your supplement stack.
Carre July 11, 2025
Okay! I wish I could just HUG you guys! This is so SO very helpful. Thank you, again and again, and AGAIN!
Carre July 11, 2025
Sorry, another question – I’ve seen people in groups saying you must take a ‘binder’ with fenbendazole and/or ivermection to ‘bind’ any parasites. I don’t believe I see that mentioned anywhere on this site. Do you feel this is necessary if you’re using to shrink a tumor, and if so could you please advise what to use, how to use, and how often?
Thank you!
Fenbendazole.org July 15, 2025
This idea comes from the parasite-cleansing world, where binders are often recommended to “mop up” toxins or debris released when parasites die (a so-called die-off or Herxheimer reaction). While Fenbendazole and Ivermectin can both have antiparasitic action, when they’re used in cancer protocols, the main goal is not to kill parasites, it’s to disrupt microtubules (Fenben) or modulate pathways like WNT and PAK1 (Iver).
That said, binders can still be helpful, but they are not strictly required for everyone.
Hola, buena tarde, desparasite a mis perros con fenbendazole, solamente tengo duda y quiero saber ¿si es normal que hayan perdido un poco el apetito durante la desparasitación? Gracias!
Hola, Sylvanna! Thank you for a great question.
Temporary suppression of appetite is a phenomenon that sometimes occurs. Also, sometimes after deworming a pet, it can be noticed that its appetite is no longer so great. This happens in cases where the worms absorbed a lot of nutrients from the pet and caused hunger, and after deworming and the worms are removed, the appetite also decreases, because all nutrients are absorbed by the dog, not the parasites.
my sister has recently been diagnosed with stage 3 breast cancer (Metastatic adenocarcinoma in the left axillary lymph node), ER positive, PR negative and HER-2 low.
She is currently undergoing AC chemotherapy since June 4 and the doctors say she’ll have her chemotherapy for 6 months. I’d like to ask if these drugs and dosage are correct for her treatment.
– 222 mg, fenbendazole daily for 6 days (Monday-Saturday), skip on the seventh day (Sunday), repeat weekly.
– Milk thistle (silymarin) – 250 mg twice daily with food
– Curcumin (turmeric) – 600 mg daily, twice daily with meals
– CBD oil – 25 mg (1-2 drops) under the tongue at night before sleep
– 54 mg ivermectin (1 mg per kg, 3x per week, 4 days off)
I’d also like to ask when she’ll gradually decrease the dosage of the drugs once we see good results, or will the dosage above likely be taken consecutively (unless if her diagnosis has worsened). thank you!
Hi, my father, aged 74, has been diagnosed with advanced large cell neuroendocrine lung cancer, which has metastasised beyond the lung.
Genetic testing revealed a KRAS mutation.
He recently completed the first of 25 planned palliative chemotherapy cycles (carboplatin and etoposide), which he tolerated well and was discharged in stable condition. In a couple of days, he will have his second round of chemotherapy.
In addition to chemotherapy, he is currently taking fenbendazole (222 mg daily, with no breaks).
I would be grateful for your guidance on the following:
Is it considered safe or advisable to use CDS (Chlorine Dioxide Solution) or blue methylene, or ivermectin in combination with fenbendazole? You mentioned on your website the benefits of using DCA, but could CDS be used instead?
What would be the most appropriate fenbendazole protocol for someone at his advanced stage of cancer, particularly with a KRAS mutation? Should fenbendazole be paused or adjusted during chemotherapy cycles?
Many thanks Aqunia
Hello, Aqunia and thank you for a great question!
Ivermectin and methylene blue may be combined into your protocol.
Now about Chlorine Dioxide Solution: CDS and DCA are very different substances with distinct mechanisms, although both are explored in alternative cancer circles. CDS acts as a potent oxidizing agent. It can disrupt microbial membranes and oxidize biomolecules. DCA targets mitochondrial metabolism, especially in cancer cells that rely on glycolysis (Warburg effect). DCA combination is the most common and best supported. CDS combo is more controversial and much riskier. CDS is a powerful oxidizing agent. That means it causes oxidative stress by stealing electrons from other molecules, especially from proteins, lipids, and DNA in your body.
Hola, buen día, mi pregunta es sobre la desparasitación, tanto en humanos como en mascotas (¿quiero saber si se puede utilizar en gatos?) Bueno, si yo ya realice la desparasitación y lo volví a hacer a las 3 semanas, ¿Al cuánto tiempo puedo nuevamente realizar el procedimiento, o sea cada cuantos meses se puede realizar una desparasitación con fenbendazole? Quedo a la espera de su respuesta y muchas gracias por solventar nuestras dudas, saludos, ¡Feliz día!
For deworming, fenbendazole is commonly used in a cycle of 3 to 5 consecutive days, followed by a break. If the goal is general deworming, it is typically repeated after 3 weeks to target any remaining parasites. This cycle can be safely done every few months.
Both humans and animals should monitor frequent or long-term use to prevent liver stress. A break between cycles is always recommended unless otherwise advised by a healthcare provider or veterinarian.
Hello, thank you for all of this information. My father is receiving treatment (docetaxel, carboplatin, Lupron, and Nubeqa) for stage 4 prostate cancer with bone spread. Could fenbendazole/ivermectin fight cancers with complete RB1 loss and BRCA2 single copy loss? Been reading about metformin, nitazoxanide, black walnut, artesunate, vit C, etc. and all of the information has been overwhelming. Worried that the cancer will morph into neuroendocrine type and would like to add anything that would prevent this. Any information would be greatly appreciated, thanks again.
Hello, Jamie!
With RB1 loss and BRCA2 single copy loss, fenbendazole likely has limited effect – RB1 loss weakens its ability to control tumor growth. It may still help stress cancer cells, especially when used with metabolic agents like metformin or ivermectin.
Ivermectin shows more promise in RB1-deficient cancers and may help delay neuroendocrine transformation, as it hits key pathways (WNT, Akt, YAP).
Many also combine with DCA, artesunate, vitamin C, and low-dose metformin. But keep the stack simple, monitor closely, and always talk to the oncologist when possible.
I’m confused as to dosage for dogs. You have 2 protocols. One is fen Ben 3 days on and 4 days off. Then the,other protocol is every day. Which is it? I have a 55 lb lab who,was just diagnosed with bladder cancer and need to know what dosage to go by. Thank you
Hello, Richard.
Yes, there are two protocols, but one is for a cancer treatment, and the other one is for parasites. When dealing with parasites. For cancer, we recommend doing 4-3 day splits, because usually this is a longer treatment then parasites, so you need to give more rest days for a dog’s liver.
I’ve seen protocols for active cancer for humans 6 days on with 1 day off with a variety of supplements. Would you still recommend the 4/3 protocol for pets? I also have her on Turkey Tail mushrooms and a 5 mushroom blend along with D3 and Curcumin. Please advise. Thanks so much!
We recommend the safest yet effective method and dosage. However, it is up to you and most people really tolerate 6 days on and 1 day off well. If you see that liver enzymes are not elevated and your overall health is okay, you can increase the dosage or frequency of use. D3 and curcumin are great! In our opinion, 5 mushroom blend still lacks research, but looks promising, so we will not comment about this method for alternative healing as there are not enough supported information so far.
Richard July 1, 2025
Our vet is also recommending a chemo pil given on alternate days— Monday Wednesday Friday for example. Your protocol is to discontinue FenBen 2 days prior to chemo so should I even attempt chemo or see if we can do consecutive days instead of alternate days?
What would you recommend? Working with both chemo and Fenbendazole ?
Fenbendazole.org July 2, 2025
Chemo and fenbendazole works well. We would recommend listening to your veterinary professionals opinion. You could try doing consecutive, but always monitor her health and consult with a vet if needed.
My 10 year old lab with bladder cancer
Just went through first week of 444 Fenbendazole
4 days on 3 days off she did very well on 444 and 4 day should I jump up to 6 days?Thank you for helping out
Hello, Richard.
We would suggest continuing at least for one more week on 4-3 day splits and then evaluate her liver enzyme levels. If everything is okay, you could try jumping to 6 day usage.
Richard July 21, 2025
Hi guys
The Vet put us on Chemo the name is Vinblastine have you herd of this we are doing five days on two days off with 444 for a 10 year-old black lab bladder cancer. Do these two work together pretty good.it has been 6 days now on the Chemo and 444 she did great just on 444 ,D3,CBD oil, and Curcumin thank you
You have been a great help
Fenbendazole.org July 30, 2025
Dear Richard,
Vinblastine is a chemotherapy drug commonly used in veterinary oncology, including for bladder cancer in dogs. Many people do combine it with fenbendazole (444 mg), along with vitamin D3, CBD oil, and curcumin, as these supplements can help support the body and may complement the protocol.
It is generally well tolerated together, but every dog can respond differently, so it is important to watch for any signs of digestive upset, lethargy, or changes in appetite as the combination continues. If she handled 444 mg alone well before, most dogs do fine when the chemo is added, as long as her energy and appetite stay steady.
Hello, Meri.
Yes human grade fenbendazole is okay for other animals. Animal (pet) grade has more additives for taste and form, but human grade is usually fully fenbendazole – no fillers.
Hi, I was diagnosed with stage 1A Diffuse Large B-Cell Lymphoma and underwent four rounds of chemotherapy. I’m now in full remission. Should I consider taking fenbendazole to help prevent a relapse?
Hello, Christine. You are very welcome, and we truly wish you strength and healing on your treatment path.
You should pause fenbendazole use 1-2 days before chemo and same after chemo. This is because chemotherapy targets fast proliferating cells the most, and fenbendazole is slowing down cancer proliferation, so chemo may be not as effective on the days you are on fenbendazole.
I find it hard to tell whether fenbendazole actually kills existing cancer cells and shrinks tumors, or it just inhibits new growth. Inhibiting is good, but I want the existing tumors to disappear. Is that possible?
I just started Ivermectin, and one site I looked at was suggesting dosing based on Lean Body Mass, not on body weight. The numbers are really different for an overweight person like me. My weight is 245 but lean body mass is 131 (based on one calculator). So I’m unclear whether to take 222mg or 444mg of Fenben. Since I’m also on IVM daily, do I only take Fenben 3 days a week, or 6?
Thank you for your help. If you are allowed to recommend a safe source of Fenben, please do. 🙂
Hello, Beth.
Fenbendazole has shown both cytostatic (growth-stopping) and cytotoxic (cell-killing) effects in lab and animal studies, also in a real life case reports (so called anecdotal). But it depends on a cancer type, stage, overall cancer progression, dosage, duration and other variables. In some cases, people report visible tumor shrinkage, especially when combined with other agents (IVM, DCA, 2-DG, etc.). But results vary greatly.
Start at 222 mg/day (or every other day)
If well-tolerated after 7–10 days, increase to 444 mg/day, depending on how your body responds. Start Fenben 3 days/week (e.g., M/W/F) then increase to 5 or 6 days/week if well-tolerated and no liver or GI issues.
Last year my husband was diagnose with malignant melanoma of skin of back-secondary malignant neoplasm of axillary lymph node , metastatic malignat neoplasm to soft tissue. He had the mole and area around it removed and lumph nodes under both arms removed that were cancer…….cancer free and was given keytruda every 6 weeks. Cancer returned in another area on his back but not yet in lymph nodes. Changed treatment to Iplimumab & Nivolumab…he had one treatment and at the end of the 3 weeks developed a horrible rash on his upper body…got pills and cream to treat that. The day of his second treatment he developed diarrhea..took the second treatment and got sicker and sicker. He developed auto immune colitis from the treatments. He was in the hospital a week and given massive doses of steroids. We are home now . Have doctor’s appointment on June 16 to see what new protocol they are offering. They said it would be a clinical trial most likely. He will end streroids on June 19th. I have been researching fenben and ivermectin but have no idea where to start or what dosage. Can he even take since he has taken Ipilimumab and Nivolumab . Last treatment was April 29. He takes crestor, telmarsartin for blood pressure, xyzal and singular. How soon after he is off steroid can he take fenben and ivermectin? What are your suggestions? Dosage? Thank you.
Hello, Bev. Thank you for sharing your husband’s story—he has been through a lot, and so have you.
We would strongly recommend to wait until after steroids. Steroids suppress immune activity, which may blunt or confuse any immune-stimulating effects of fenben or iver. Starting too early may aggravate colitis or prevent proper steroid tapering. These compounds are generally well-tolerated, but in someone recovering from immune-related toxicity, even safe things can backfire if the gut is still fragile.
Suggested Starting Point:
🔹 Fenbendazole
Start low: 222 mg every other day with food + healthy fat (like coconut oil or avocado)
If tolerated after 1 week, move to 3 days on / 4 days off or Mon–Fri on / weekends off
Add milk thistle or TUDCA for liver support
To calculate a preferred dose you can use our dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
🔹 Ivermectin
Typical dose: 0.2 mg/kg, taken 1–2x per week
For a 75 kg person (~165 lbs), that is 15 mg per dose
Must be taken with food (fat helps absorption)
Buen día, que bueno que nos ayuden a solventar dudas, les saludo desde Guatemala, pues yo encontré el fenbendazole líquido al 10% pero quiero saber ¿Cómo serían las dosis líquidas? Ya que en la calculadora del este sitio solamente aparecen en MG, más no en ML, lo quiero para desparasitación de consumo humano y mascotas, obviamente no está demás tener la información para prevención, les agradezco mucho, bendiciones
Hello, Ferdinando.
The typical parasite treatment for dogs is given for 5 consecutive days—5 days in a row without breaks—rather than 5 days on and 2 days off. This continuous dosing helps ensure effective parasite elimination.
If the treatment is only for parasites and your dog’s fecal parasite test comes back clear after the course, usually there is no need to repeat another cycle.
My fur baby cairn terrier has solo lemon size tumor mid liver with high liver enzymes. I’m devastated. Started chinese herbs, milk thistle, and turmeric as per out of state holistic vet sought. Already on fresh food and appetite is still very good, but recently picky in foods always loved-blueberries, grbeans, egg-yet always acts like hungry. Acts tired most all of the time. He’s 13.6 lbs given PanacurC 222 mg for 6 days in 1/4 tsp coconut oil with food, then off yest. Info is confusing about days on/off as I’ve seen multiple combinations recommended. I get that it depends on toleration. What’s best dosing for this tumor? When to know if it’s helping? What is rationale for off days? Anything else I can try? I’d love a miracle. Want to at least extend quality time and not wanting him to suffer is paramount. Any help is appreciated. Please help.
Hello, karen, we are so sorry you and your pup are going through this. It sounds like you are giving him the best chance with everything you are doing already.
For your dog’s weight, 222 mg per day is a standard therapeutic dose and aligns with the 20 mg/kg baseline guideline.
Since liver enzymes are already high, consider 3 days on / 4 days off initially and monitor for signs of fatigue, GI upset, or appetite changes.
Signs It May Be Helping:
Increased energy or alertness
More stable appetite or interest in food
Reduction in tumor size (if palpable)
Better stool consistency or behavior overall
Scans at veterinary professionals.
Keep a daily journal of mood, appetite, and stool—these are subtle early clues of internal changes.
Why the Off Days?
Off days give the liver a break, especially critical in liver tumor cases. Fenbendazole is metabolized by the liver, and even though it is well-tolerated, the cumulative effect can be taxing without breaks. Off days also reduce the chance of side effects and allow the body to clear what it needs to.
This confuses me. At the top of this comment it says 222 mg per day. Then below that it says .2mg/kg with the example of 13 mg for a 145lb person. Could you please clarify?
Hello, Carles.
In the question, person asked about two substances, fenbendazole and ivermectin. 2mg/kg was the recommendation for the use of ivermectin, not fenbendazole.
Hello, Kathy, and thank you for a great question.
Using fenbendazole while breastfeeding is not recommended, due to the lack of human safety data and the potential transfer through breast milk.
However, if fenbendazole is essential, you may try pumping and discarding breast milk during Fenben. And use milk only on your pause days, at least 2–3 days afterward, based on its half-life.
Hello
Thank you for being!
I have been diagnosed with a Breast Cancer (stage III) 3.5 years ago. Hormone dependent and HER-2 positive (3+) on the left side. I also have multiple fibroids in the uterus. I have been treating it with homeopathy, Chinese medicinal mushrooms, Qi Qong, meditation. But in 2024 I had a very challenging year, emotionally, financially, and my mother died. So I felt that directly in my body, and it metastasized to lungs, bones (right ankle, right lower back), left arm pit ganglia, and there’s a spot on the liver. I found about Febendazole, and I started 3 months ago, directly with 444g per day, 7 days/ week. I tolerate it very well. I also take Vit D3, and other complements and medicinal herbs, breathing exercices, deep inner work, and I totally changed my diet. BUT it is not bettering at all, all the contrary, I am getting worse, I started having pain in the areas with metastasis, and in the left arm (which is also getting more and more inflamed ). I don’t want to lose my faith, but it’s been such a long and lonely struggle… and I would really like to know:
1) how long do I have to keep taking it to see results?
And 2) Can I combine it with Ivermectine and CDS ? And what else?
Any other useful advice?
I am really desperate, but I am still firmly convinced that I don’t want Chemo, nor immunotherapy nor radiotherapy.
Thank you in advance for answering and helping
Yasmina
Thank you for your heartfelt message. We deeply admire your strength, clarity, and determination in walking such a difficult path with so much awareness and intention.
Regarding your questions:
1) How long to take fenbendazole?
Many anecdotal cases suggest several months of use before signs of stabilization or improvement—especially in advanced cancers. However, in your case, since you have already been using 444 mg daily for 3 months without any improvement and are instead worsening, this is a clear signal that the current approach may not be enough on its own. It does not necessarily mean fenbendazole is useless, but it might need to be part of a broader, more strategic protocol.
2) Can it be combined with ivermectin and CDS (chlorine dioxide solution)?
Yes, both ivermectin and CDS have been used alongside fenbendazole in various alternative protocols. Ivermectin is often taken 3 times per week (doses range around 0.2–0.4 mg/kg). Many take it in the morning on an empty stomach, while keeping fenbendazole with food in the evening. CDS, when used, is often taken carefully in low doses, away from meals and other supplements, particularly antioxidants like vitamin C, as it may neutralize its effect.
Important considerations:
Pain in metastasis areas can sometimes happen during tumor activity, but it may also signal unchecked progression. If the inflammation in your arm is growing and interfering with function, this needs close observation.
Given the spread and your decision to avoid chemo or radiotherapy, you might consider looking into low-dose integrative options: such as low-dose naltrexone (LDN), repurposed drugs like metformin, DCA, curcumin in high dose extracts, honokiol, or methylene blue. Some clinics also offer integrative intravenous therapies (e.g. high-dose vitamin C, artesunate, mistletoe).
You are not alone in this. The loneliness of this path can feel unbearable, especially when results are not visible—but your intuition and life force are strong. It may be helpful now to reassess your full protocol with someone experienced in integrative oncology to adjust what may not be working.
Thank you so much for taking the time to answer.
Yes I often feel the loneliness of this struggle. And the pressure of the conventional medicine…
I will keep searching and trying. I know I want to heal… and I probably have some blockages I still haven’t found.
I will keep you informed, as I guess it’s important for you to keep track of different cases.
I’ll maintain Fenbendazole for 3 more months, along with other things. I will let you know.
Blessings,
Hello! Will caffeine (coffee) have any negative effects (absorption, etc..) while taking Fenbendazole? If yes, how far apart should Fenbendazole be taken from the last drink of coffee? Thank you! -KJ
There is no known direct interaction between caffeine (coffee) and fenbendazole that would significantly impair absorption or reduce efficacy. However, since fenbendazole is fat-soluble and best absorbed with food—especially with some dietary fat—it is ideal not to take it on an empty stomach with only coffee.
To optimize absorption, we recommend taking fenbendazole with or right after a meal containing some fat. If you are drinking coffee separately, a 1-hour gap before or after the fenbendazole dose is a reasonable precaution, mainly to avoid it replacing a proper meal.
Dear Team, dear Friends. My uncle has lounge cancer, last stage. Chemo has given no results. The tumor is 11cm. I got Fenbendazol and Invermectin with other supplements that you recommend on your page. I plan to use them together. What can you recommend? Which dosage? He has 60kg and 175cm height. I see mixed opinions. Can he do both medication on the same day? Do you have a protocoll for this combo or any experiences? Thank you in advance.
Hello, Vladan.
Thank you for reaching out, and we are truly sorry to hear about your uncle’s situation. Given his diagnosis and lack of response to chemotherapy, many have turned to complementary approaches like fenbendazole and ivermectin in hopes of offering support.
For a man weighing 60 kg, a common dosage of fenbendazole is around 222 mg daily (but he can climb up to 444mg in a few weeks if there is no side effects and it is tolerated well), usually taken three days on and four days off. It should always be taken with food, preferably containing fat, to improve absorption. Ivermectin is often used at around 0.2 to 0.4 mg per kg of body weight, meaning your uncle could take approximately 12 to 24 mg. This is usually taken once daily for a few days, or in some cases three times weekly, and is best absorbed on an empty stomach.
It is possible to use both medications on the same day. A typical approach is to take ivermectin in the morning on an empty stomach and fenbendazole in the evening with a meal. While there are different opinions about schedules, this method helps to separate the compounds for better tolerance and absorption.
We have seen people combine these with supportive supplements, as you have done, and many maintain this routine for several months while monitoring how the body responds. It is important to observe how your uncle tolerates the regimen and to monitor liver function regularly.
We sincerely wish you and your uncle strength during this time.
Hi, I have read through every single question and answer. I did not see this one addressed and hoping you can comment on it:
Would there be any potential benefit for shrinking a rapidly growing uterine Leiomyoma using Ivermectin and Fenbendazole? I have the paste in ivermectin (have taken without issue for over a month now – small dose because I’m not sure how much to take for this tumor that appears to be continually growing – fed by hormones) and I have the Panacur on the way now to add in to this protocol. (I will use the calculator). I also take a wide range of other supplements to assist in staving off the growth of this tumor. (Maca Root, Ashwaganda, Boron, Zinc, Magnesium (few varieties), Vit. K2/M7, NAC, DIM, Milk Thistle, EGCG, Alaskan Salmon fish supplement, 50,000 iu Vitamin D, homemade freeze dried capsuled beef liver and beef heart. Again, I take the Ivermectin – 3 notches daily, per my weight of 133#’s. All of this is taken daily, throughout the day. I’m having my Vit. D levels and Liver markers checked this week. Assuming all is good there, I’m curious if you know of any contradictions or issues taking these supplements with my Panacur (222)? I have not seen any information on uterine tumors but I’m wondering if it simply has not been considered yet. If it’s a tumor that grows (usually requiring surgery) could this not be treated with the same concept as shrinking other tumors? Thank you so SO very much ..
Hello, Carre, and thank you for a question.
Thank you for your thoughtful and detailed inquiry. We commend your proactive approach to managing your health and seeking information that may support your well-being. While there is limited peer-reviewed clinical data specifically addressing the use of fenbendazole or ivermectin for uterine leiomyomas (fibroids), we are pleased to provide an informed perspective.
Because uterine fibroids are hormonally driven, the use of supplements like DIM (diindolylmethane), maca root, and ashwagandha can influence estrogen metabolism and cortisol balance. DIM is particularly useful as it may help shift estrogen metabolism towards less proliferative forms (2-hydroxyestrone vs. 16-alpha hydroxyestrone).
Your current supplement regimen is extensive and thoughtful.
Talking about fenbendazole, although it has not been directly studied in fibroids, the common cellular mechanisms it affect — such as abnormal growth signaling and microtubule integrity—may potentially be relevant.
Fantastic .. thank you so much! I should have asked this before but when dosing the Fenbendazole, would it be best to follow the cancer protocol, since we’re dealing with a tumor? And to clear, no contradictions taking all of the aforementioned supplements along with the Ivermectin and Fenbendazole? Thanks!
Hello again, Carre,
Thank you for your kind words — we are really glad the information was helpful. You are absolutely right to follow up with questions like these, especially when navigating such a comprehensive protocol.
Yes, since you are addressing a rapidly growing tumor, even though it is benign (like a uterine leiomyoma), it makes sense to follow the standard cancer protocol for fenbendazole, as outlined in our guide. That would typically be 222 milligrams per day, taken with food that contains some fat, five or six days per week, with one or two days off.
As for your supplement list — which is impressively thorough — we do not see any known contraindications with taking fenbendazole and ivermectin alongside the supplements you mentioned, especially if your liver function and vitamin D levels are being monitored regularly, which is excellent.
Just a small reminder: both fenbendazole and ivermectin can put mild stress on the liver in some individuals, so it is wise to continue monitoring liver markers and take breaks if needed. Your use of milk thistle and N-acetylcysteine is a great choice for added liver support.
And yes, your thinking is absolutely valid — while uterine fibroids are hormonally driven and benign, they are still tumors in the sense that they involve abnormal cell growth. So, targeting general mechanisms like cell division, inflammation, oxidative stress, and hormonal imbalance can be a strategic and holistic approach.
Carre May 8, 2025
I simply can’t thank you enough for your thorough answers and this resourceful page! I hope I am not ‘pushing my luck’ by coming back with one more question, so pardon me if I am! I received my Panacur 10% paste yesterday. It looks like 222 mg would be my dose based on weight. Is using a milligram scale the only way to accurately measure the Panacur paste, or is there a way to know how much each ‘notch’ on the ‘syringe’ contains? I know people use this paste and are either at 222 or 444 mg’s, so maybe this has been discussed and established? I don’t see the inactive ingredient list on this Panacur paste, either. I’m assuming it’s similar to the Ivermectin paste’s inactive ingredients .. Thank you, kindly.
Fenbendazole.org May 12, 2025
Thank you for your kind words and continued engagement—it is truly appreciated.
Regarding your question on Panacur paste, the dosing syringe is indeed marked with notches for approximate dosing, and many users follow this method without a scale.
Each full 5-gram syringe contains 500 mg of fenbendazole per gram × 5 g = 2,500 mg total, and if the syringe has 18 notches, then each notch would roughly equal about 139 mg of fenbendazole (2,500 mg ÷ 18 ≈ 139 mg).
Therefore, 2 notches ≈ 278 mg, which is close to your 222 mg target dose.
For 222 mg precisely, you would need roughly 1.6 notches, though exact dosing becomes more difficult without a milligram scale.
While using a milligram scale is the most accurate method, for practical purposes, many use the syringe notches as a reasonable guide.
As for the inactive ingredients, manufacturers do not always disclose the full list on the packaging. However, veterinary Panacur pastes typically contain binders, emulsifiers, and preservatives similar to those in ivermectin pastes, such as propylene glycol, sorbitol, or artificial flavoring.
Safe-Guard (fenbendazole) is formulated exclusively for oral administration and is not intended for topical use. The manufacturer, Merck Animal Health, specifies that Safe-Guard products are designed to be administered orally.
I have Gardner’s Syndrome with FAP. Had my colon and rectum removed (have a j-pouch, ileostomy not reversed yet). Recent endoscopy and pet/ct scans show one hot spot (2.5cm) in the stomach, and the pathology of the polyp samples taken indicate: large fundic gland polyps, fragments of pyloric gland adenoma with at least intramucosal carcinoma. Doctors say my only option is to have a total gastrectomy. Wondering if there is any chance a ivermectin/fenben protocol of some type could help save my stomach from being removed. Thank you.
Dear Jeff,
While we cannot offer medical advice, we can share that many people with serious or high-risk diagnoses have chosen to try protocols including fenbendazole and ivermectin. Some have experienced positive results, including tumor shrinkage and stabilization, even in complex cases. You can calculate your fenbendazole dose here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
The full protocol is also listed at the bottom of that page.
Ivermectin is usually taken at 0.2 mg per kilogram, five days per week. It works best on an empty stomach and should be taken at a different time than fenbendazole.
Some people also add natural support like curcumin, vitamin D, milk thistle, and CBD, along with a clean, low-sugar diet. Supporting your body with rest, peace, and hope is just as important.
I had been diagnosed with stage 4 non-small cell lung cancer metastatic to the brain and bone a year. I am taking targeted Tagrisso (Osimertinib) every day which is a targeted medicine. In addition I am taking a monthly injection called XGEVA (Denosumab) to protect the bone. Would you please advise me if taking Febendazole would interact with this medications? Any advise you can give me, is greatly appreciated. Thank you so much for your time and help.
Thank you for your message, we truly admire your strength and clarity in navigating your treatment.
To your question: Fenbendazole is not known to have any direct or well-documented interactions with Tagrisso (Osimertinib) or XGEVA (Denosumab). Since fenbendazole is not metabolized through the same liver enzymes (notably CYP3A4) that Osimertinib uses, a pharmacokinetic conflict is unlikely, though this has not been formally studied in clinical trials.
That said, both Osimertinib and Fenbendazole may affect liver function, so it is wise to monitor liver enzymes if using both. Also, since XGEVA affects calcium metabolism, make sure your vitamin and mineral levels (especially calcium, vitamin D, and magnesium) are regularly checked.
Your current medications are standard and effective for your diagnosis. If you choose to add Fenbendazole be sure to use our dosage calculator and also use recommended supplements.
I just came across your website and I can’t express my gratitude enough !! This week I got diagnosed with endometrial carcinoma stage 1A. The standard protocol is a total hysterectomy . My whole being says no .
So I was looking for an alternative and found your website . Shall I follow
Joe Tipp’s Protocol (the original version) – complimentary cancer treatment ?
I’m planning to add intake of berberine , magnesium , zinc , nattokinase , bromeline , dandelion .
Can I add reishi to this as well ?
Thank you so much , and thank you very much as well for giving your take on this !
Dear Inge,
Thank you very much for your heartfelt message. I am truly sorry to hear about your recent diagnosis, and I admire your courage in exploring alternative paths.
Yes, many people have chosen to follow Joe Tippens’ original protocol as a complementary approach, and I believe it can be a meaningful part of a broader healing plan. The supplements you are considering—berberine, magnesium, zinc, nattokinase, bromelain, and dandelion—are often used for support, and reishi can also be a valuable addition due to its immune-modulating properties.
To help determine the appropriate dose of fenbendazole based on your weight, I recommend using the dosage calculator on this page: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
At the bottom of that page, you will also find the full protocol, which provides clear guidance on how to use fenbendazole effectively and safely.
Wishing you strength, clarity, and peace as you move forward. You are not alone in this.
Fenbendazole.org May 8, 2025
Dear Inge,
Thank you very much for your heartfelt message. We are truly sorry to hear about your recent diagnosis, and we admire your courage in exploring alternative paths.
Yes, many people have chosen to follow Joe Tippens’ original protocol as a complementary approach, and we believe it can be a meaningful part of a broader healing plan. The supplements you are considering—berberine, magnesium, zinc, nattokinase, bromelain, and dandelion—are often used for support, and reishi can also be a valuable addition due to its immune-modulating properties.
To help determine the appropriate dose of fenbendazole based on your weight, we recommend using the dosage calculator on this page: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
At the bottom of that page, you will also find the full protocol, which provides clear guidance on how to use fenbendazole effectively and safely.
Wishing you strength, clarity, and peace as you move forward. You are not alone in this.
Hi, I was wondering if you could recommend a protocol for me?? I do not know much about HPV 16 but was diagnosed last year. Here is what my papers said “High-grade squamous intraepithelial lesion (CIN2-3/moderate to
severe dysplasia);
High-grade dysplasia is closely excised at endocervical margins
(3-6:00 quadrant; less than 0.1 mm).
I had a hysterectomy 8 months ago. My doctor told me to eat good. That is the only information I’ve received from my doctor. Nothing else at all. I would appreciate any recommendations. I am on my own with this and I have no idea what to do. Thank you
Hello Lisa,
Thank you for reaching out and sharing your story. We know how hard it can be to feel alone after a diagnosis and major surgery, especially when no clear guidance is given afterward. Please know you are not alone, and there are supportive options to consider.
After a hysterectomy for HPV-related high-grade dysplasia, the focus shifts to strengthening the immune system, lowering inflammation, and helping the body maintain balance. Many people choose to follow a version of the fenbendazole protocol for long-term support. You can use this calculator to find your dose: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
The full protocol is listed at the bottom of that page.
Other supplements that may support your recovery include sulforaphane, quercetin, NAC, zinc, magnesium, berberine, alpha-lipoic acid, and vitamins C and D3. A low-sugar, anti-inflammatory diet can also make a big difference, along with rest, movement, and emotional care.
Greetings, just diagnosed upper tract urothelial carcinoma. Tumor lesion/cancer in one of my ducts and on kidney. Not alot of information on this type. Started Ivermectin, Fenben, Tumeric, Vit E, D3, K1&2. Curious any one know about this type of cancer and good protocol besides Google. Really just going off other type of cancers using similar protocol. Thank You
Hello, Shannon!
UTUC is rare and more aggressive than bladder cancer. Standard care usually involves surgery and sometimes chemo or immunotherapy.
Your protocol (Ivermectin, Fenbendazole, Curcumin, Vitamins D3, E, K1/K2) covers anti-inflammatory and metabolic angles. It’s reasonable, but data on UTUC specifically is limited.
If tolerated, you can continue your approach while staying in touch with your doctors. Regular monitoring is key.
Is 7500 mg of milk thistle (3 times a day) too much? Should I divide the pills into 1 per day (2500)? Also, when I put CBD Oil into the search on Amazon, all that popped up was Hemp Seed Oil. I purchased a large bottle that is Organic 500 mg per tablespoon. I’m new here and I don’t think I have the right thing. Can someone help me? If it’s wrong, where would I purchase CBD, please?
And last, but probably not least, could the Hemp oil be used as a Fatty (after) meal to take with the fenben? Thank you in advance.
Hello, Deborah, thank you for a question.
7,500 mg/day is far above standard dosing and may pose risks without clear added benefit. You can reduce dose to 2500mg no problem. Hemp oil can be used as a fat source to take with fenbendazole. Unfortunately we do not advertise on this website, so we will not recommend any CBD suppliers here, but you may get a lot of useful information or directions on Chat GPT, Facebook support groups, reddit or even X platform where discussion monitoring is not as strict.
Hi, The husband of a friend of mine is currently undergoing chemo. She wants to start him on fenbendazole, but she was wondering if it’s safe to take with chemo? Also, she has a tube of the horse paste and doesn’t know how much to start him on. Thank you.
Hello, Sam, and thank you for a question.
The general consensus is that chemotherapy plus fenbendazole is safe. The only thing you need to consider is taking a pause a few days prior to the chemo round and a few days after. This is because chemotherapy targets fast-proliferating cells the most, like nails, hair, skin, and, of course, cancer. Fenbendazole slows down cancer cell proliferation, so chemo will not target it as much if you are on fenbendazole while going on a chemo round. This is why it would be best if you took pauses to get the best results from both therapies.
Hello Marco,
Fenbendazole (220–222 mg daily) and Ivermectin (12 mg) are sometimes used off-label alongside chemotherapy like FOLFOX. There are no well-documented negative interactions between them, but it is important to proceed cautiously.
FOLFOX can already be hard on the liver and nervous system, so adding other compounds should be done gradually. Fenbendazole and Ivermectin are generally well-tolerated, but both may increase metabolic stress slightly, so liver support (such as milk thistle, Tudca, NAC, or alpha-lipoic acid) is highly recommended.
Many people take these supplements on non-chemo days, once daily with food (especially some fat) for better absorption. Monitoring how you feel and tracking any symptoms is key.
Wishing you strength, healing, and clarity in your journey.
Hi, this is for a case of pancreatic cancer (malignant tumor) that spreads very quickly to the stomach. The subject weighs 55 kg.
Can we take fenbendazole 222mg with loposomal vitamin C and methylene blue?
Is there a reliable site to buy fendenbazol in Europe? Thank you for your feedback, strength and courage to all.
Hello, James.
Yes, fenbendazole is considered a relatively safe compound with minimal side effects if liver enzyme levels are in check. We also recommend taking supplements for liver health. Alpha-lipoic acid, curcumin, and milk thistle are good choices. We are not affiliated with any fenbendazole distributor or company, but if you are looking for a European-specific product, Fenben Lab is one of the top brands to look for for European products. Also, there are good results with Safeguard dewormer, which is also widely distributed in Europe. There are also Panacur products in Europe, but they are much more popular in the USA, as far as we know.
Hello, thank you for your question. Fenbendazole is typically used at a concentration of 100 milligrams per 1 milliliter, not per liter. If your solution is labeled as 100 milligrams per liter, that would mean it contains only 0.1 milligram per milliliter, which is extremely diluted and very unlikely to be effective.
This is a common misunderstanding, so it is worth checking the product label again to be sure how the concentration is written.
For human use, the standard dose is usually 222 milligrams per day if the person weighs under 90 kilograms, and 444 milligrams per day if over that. It is normally taken once daily with food that contains some fat to help with absorption.
Hello, I was diagnosed with stage 3 prostate cancer. At the same time, I am taking blood thinners. Is it possible to take Fenbendazole? And in what quantity?
Hello, Lenka!
Yes, fenbendazole is safe even when using it together with blood thinners. Just keep in mind that lots of people are using vitamin E together with fenben as an antioxidant. So vitamin E also has blood-thinning properties. You should not take extra blood-thinning supplements in your protocol. Fenben is not one of the blood-thinning compounds.
Hi FenBen! This site is amazing, thank you. I do not have cancer, but I do suspect I have some internal parasites and I would like to get rid of them using Fenben. I dont want to get cancer so im doing this now. I did ivermectin for 3 days (pencil eraser sized orally of apple flavored) I seemed to have tolerated it well, but I did have a pretty big headache as the days progressed. I have done some research and found that this seems to be common and I think that there is some die off happening. I am currently icing my neck and hydrating a lot, also using the vibration plate hoping it will just pass through. As I have been doing research I see that fenben might be a little more tolerable so I went to the store and bought some. I do want to give myself a break and get this inflammation under control before proceeding onto using fenben next week. My question, with this being a profolatic can you recomend how much to take when and for how long. I am just over 100 lbs and quite sensitive it seems, so I would like the parasites gone but I also can’t have this crazy headache the whole time im doing it. Your advise is so welcomed. Thank you for your time.
Hello, Ashley, and thank you for a great question!
Yes, fenben is much more tolerable than ivermectin with mild side effects. You should keep checking your liver enzymes, though, since fenbendazole might elevate your liver enzymes. So do blood tests for enzyme levels every 2-4 months just to keep safe and healthy. If enzymes are elevated, do a longer break (like a week). Since you are only 100 lbs and a sensitive person, we recommend starting with an 111mg dosage a day and maybe working your way to 222 mg. For prophylactic reasons, you can do 3 days on and 4 days off. Others do 4 days on and 3 off, but it is highly individual, so listen to your body. Then after a few months, you can take a 1-week pause for your liver’s well-being. The prophylactic approach is much more mild. Hope this helps!
Best regards.
Hello. My father has stage 4 cancer. He has multiple small tumors/cancers all over his brain. He has received all the chemo that he can. He was first diagnosed with lung cancer but it has since went away, we believe due to the Ivermectin we had been given him. But had to stop because he became non-responsive due to the brain cancer so he is now on a feeding tube. He was released from the hospital today and we brought him home and he is now on hospice. The doctors wanted to take his feeding tube out and just let him die but I had to argue with them to keep his feeding tube in. He is totally unresponsive. We would like to began Fenbendazol because we understand its more effective in crossing the blood brain barrier. My question is what advice could you give us in his situation with the feeding tube and giving him the Fenbendazol and the supplements as in your protocol? Also, should we also give him Ivermectin? Also how or should we tell the hospice we are giving him Fenbendazol? Any info would be appreciated. Thanks in advance.
Dear Prentiss,
Thank you for reaching out, and I am truly sorry to hear about your father’s condition.
In your father’s case, you are correct that Mebendazole may be more suitable than Fenbendazole for brain tumors. Mebendazole has demonstrated better penetration across the blood-brain barrier and has shown promise in various preclinical studies targeting brain cancers. That said, if Fenbendazole is more readily available to you, it can still be used, especially in conjunction with other compounds.
Reintroducing Ivermectin may be worthwhile, especially since you noticed a positive response earlier. Ivermectin also has some limited evidence supporting its potential to cross the blood-brain barrier and act on resistant tumor cells by affecting key signaling pathways.
In addition, you may want to consider incorporating Dichloroacetate (DCA) and Sodium Phenylbutyrate (4PBA) into his protocol.
DCA helps shift the metabolism of cancer cells from glycolysis to oxidative phosphorylation, often making them more vulnerable to apoptosis (cell death).
4PBA is known for reducing endoplasmic reticulum stress in cancer cells and has shown the ability to restore certain tumor suppressor genes. Both compounds are orally administered and have been used in advanced cases, including brain cancer.
Since your father is being fed through a tube, these compounds can generally be dissolved or suspended in a small amount of water or liquid food (such as enteral nutrition formulas) and gently administered via the feeding tube. Ensure everything is well-mixed and flushed afterward with a small amount of water to clear the tube.
As for hospice care, many families choose not to inform care providers about the use of alternative therapies to avoid unnecessary pushback or intervention. However, this decision is entirely personal and should be based on what you feel is best for your father and your family.
HI, My 15 year old cat was diagnosed with chronic bronchitis last June ( after an Xray ). We started with injected steroids, symptoms improved for a bit than came back. Did acupuncture , she felt better for a while than got worse . Coughing everyday , sometimes 3 coughs per day , runny eyes , runny nose ecc …In the meantime we trained her to take the inhaled steroids together with the ventolin for emergency attacks ( which by now are everyday ). Yesterday we went to the vet again, who suggested another Xtray. This time there was a growth of 2 cm near the lungs. She suggested to start thinking about euthanasia but we want to try Fenbendazole hoping it works. She weighs 2kg — What is the protocol to follow? We also give her Cbd oil and turkey tail . Thank you
Dear Ruth,
Thank you for sharing your cat’s story—she is clearly deeply loved and well looked after. For a 2 kg cat, the commonly used cancer-supportive dose of fenbendazole is 111 mg once daily for four consecutive days, followed by three days off, repeating this cycle weekly. Since you are already using CBD oil and turkey tail, those are great supportive options. You might also consider adding milk thistle to help support liver function, especially since fenbendazole and steroids are both processed through the liver. Just be sure to use a pet-safe formulation and start with a low dose. Wishing you and your sweet girl comfort and strength through this time.
Hello, i am on fenben 500 mg, ivermectine 30 mg and mebendazol 100 mg for two days now. I noticed that my thyroid tumor is shrinking. I am very happy but my lymfnodes in my neck are swollen. Is this a reaction that the medicines are working?. Maybe the tumors are panicking?
Hello Bianca,
It is encouraging to hear that you are already noticing changes in your thyroid tumor. Swelling of lymph nodes during the early stages of treatment with antiparasitic compounds like fenbendazole, ivermectin, and mebendazole may, in some cases, reflect an immune response or localized inflammation. This can occur as tumor cells begin to break down or as the immune system becomes more active in response to cellular changes. Lymph node enlargement does not necessarily indicate tumor progression—it may be part of the body’s natural response to cell death (apoptosis), detoxification, or immune system activation. However, persistent or painful swelling, or symptoms such as fever or fatigue, should not be ignored, as these could indicate infection or other unrelated processes. While the concept of tumors “panicking” is not a clinical term, there is scientific interest in how metabolic stress, microtubule disruption, and immune modulation caused by these agents can induce a cascade of tumor cell death and immune engagement. If lymph node swelling remains stable or resolves over time, it may be a transient, expected response. Monitoring the trend and documenting any new symptoms can help determine whether the reaction is temporary or requires further investigation.
I was diagnosed with DCIS last June which is termed zero breast cancer. I am going down the close monitoring route so I am not having any conventional treatment at all. What dosage protocol should I start? DCIS are cancer cells contained within the milk ducts and there is a 30% chance of it becoming invasive breast cancer. I had been through 2 decades of unbelievable stress and hell, was nearly 2 stone overweight and wasn’t eating the healthiest. But they never ask you what’s been going on in your life that could be triggers. All stressful situations are now out of my life. I started on a complete health kick and lost the 2 stone. I believe my odds are pretty good now to get rid of these rogue cancer cells, especially with the help of fenbendazole. Ivermectin is impossible to get in the UK but Fenben is a possibility.
Dear Kay,
Your approach to proactive monitoring and lifestyle changes is a great step forward. When it comes to Fenbendazole, dosage depends on body weight, and you can find a detailed guide here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. Since DCIS is a non-invasive form of breast cancer, many focus on metabolic support, immune function, and anti-inflammatory strategies alongside their protocol. It is always good to monitor how you respond and adjust accordingly. Wishing you strength on your journey!
My husband has advanced prostate cancer and has not yet undergone treatment. Last year he used fenbendazole for a few months, 444 mg per day, but without result. The psa kept rising. He also used ivermectin. Now last January he started again with 444 mg per day and ivermectin. When can I expect results? It did not work last year, so does that mean he will not respond to it now?
Hello, Wilma and thank you for a question.
Everyone’s response is different, sometimes people see a positive effect after a few months, sometimes after 4-6 months. However, everyone’s body and the characteristics of the disease are different and there are cases when the response to the drug is minimal or undetectable. It is very difficult to say when and if at all a person will see positive results, sometimes the disease is too advanced and the body is too weakened.
My 14kg dog has a brain tumor. I want to know if it is advisable to take Fenbendazole or Mebendazole. Which is the best option for this type of cancer? If it is Mebendazole, should I give it to him in the same dose, using the same protocol? What else do you recommend for his case?
Dear Iris,
Both Fenbendazole and Mebendazole belong to the benzimidazole class and have potential anti-cancer effects, but there are key differences. Fenbendazole is commonly used in dogs and is generally well tolerated. Mebendazole has better brain penetration due to its higher lipophilicity, but its absorption in dogs is variable and it is less commonly used in veterinary medicine. For a 14kg dog, Fenbendazole is typically given at 222mg per day for six days on and one day off. Since Mebendazole dosing in dogs is not well established, using the same protocol as Fenbendazole may not be ideal without veterinary guidance. Other supportive options include curcumin for its anti-inflammatory effects, milk thistle for liver support, and omega-3 fatty acids to help reduce inflammation in the brain. Since brain tumors can cause swelling, monitoring neurological symptoms and considering supportive care like steroids if needed may also be beneficial. If tolerable, Fenbendazole is usually the preferred first choice for dogs, but Mebendazole could be considered if better brain penetration is required.
Hello … I was diagnosed with stage 4 prostate cancer three years ago. I am now 71 years of age, weigh 185lbs and otherwise in good health. My oncologist has me taking 1000 mg of Abiraterone daily and also 5 mg of Prednisone twice daily. I have acquired Fenbendazole liquid, suspension 10% (100mg/ml). Is there any known contraindication when using these together? I do also take vitamin D3 with K2 daily and also Maitake mushroom powder once daily in morning coffee. Please advise me regarding a recognized protocol (dosing for the liquid). Packaging states approx. 3 – 3.5 ml daily. Maybe I should acquire tablets instead of liquid, or is the liquid OK? Thanks in advance!
Hello, Douglas! Thank you for a question.
There’s no direct evidence that fenbendazole interacts negatively with abiraterone or prednisone, but potential CYP3A4 interactions and liver stress should be considered. Tablets or liquid make no real-life difference. Also, we recommend some supplements for liver health: milk thistle, curcumin, and alpha-lipoic acid.
Hallo,
Meine 9j Hündin hatte im Dez24 eine OP, Analdrüsenkarzinom und eine Lymphknotenmetastase wurden entfernt. Jetzt 7 Monate später hat sie eine Lymphknotenmetastase. Habe nun mit Fenbendazol ( Panacur 250mg) 1x tgl morgens ins Futter begonnen. Nach welchem Protokoll soll ich weiter machen? 4 Tage geben, 3 Tage Pause? Soll Mariendistel dazugegeben werden ( täglich? durchgehend?) oder andere Nahrungsergänzung? Bitte um baldige Antwort
VG, Susanne
Hello, Susanne.
Supplements to support the protocol:
Milk Thistle: Yes. Use daily to support liver detoxification.
Use standardized extract (silymarin), dosing by weight. Continuous use is safe.
Curcumin: Anti-inflammatory, may inhibit cancer signaling pathways. Use bioavailable form (with piperine or liposomal).
Vitamin E: Natural form (d-alpha tocopherol).
CBD Oil (optional): Anti-inflammatory and possible antitumor effects.
Start with low dose, monitor sedation.
Turkey Tail Mushroom: Strong immune modulator (PSK/PSP). Safe daily.
Omega-3s: Fish oil or krill oil. Anti-inflammatory and may slow cancer progression.
250 mg fenbendazole (Panacur) once daily is appropriate for medium to large dogs, assuming weight ~15–25 kg
Some give it daily long-term without breaks, but at least a few day breaks in a week may reduce liver strain.
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Hello, Carole. Thank you for a question!
There are no reports of fenbendazole altering heparin’s anticoagulant effects, but since heparin affects blood clotting, caution is always advised when adding new medications or supplements.
While fenbendazole does not have known anticoagulant effects, if it affects liver function or metabolism, it could potentially influence heparin’s efficacy, increasing bleeding risk in rare cases.
Fenbendazole is metabolized in the liver, and although it’s not known to affect blood clotting directly, any liver strain could theoretically impact how the body processes heparin.
We recommend taking liver supplements in any case when someone is taking fenben: curcumin/turmeric, milk thistle, or alpha-lipoic acid are recommended.
Mebendazole passes the blood-brain barrier better, so mebendazole could be better in your case. Dosage is the same as fenben, as commented in a previous comment of yours.
Thank you for your reply. I bought mebendazole but it comes in 100mg tablets. In this case, when should I give it to my 14kg dog? According to the box, I should take 3 tablets a day, but should I follow the directions on the box or should I give a higher dose? I also give him CBD curcumin and milk thistle? I have read that some people take additional ivermictin. Is it necessary? If I give him fenbendazole and mebendazole, would it be too much?
Dear Iris,
For a 14kg dog, Mebendazole dosing in veterinary use is not as well established as Fenbendazole. The standard human dosing instructions on the box may not apply to dogs, as they metabolize the drug differently. If choosing Mebendazole, a common veterinary dosage is 20-40mg per kg per day, which would be 280-560mg daily for a 14kg dog. This is significantly higher than the human recommendation, so consulting a veterinarian for precise dosing would be ideal. Fenbendazole and Mebendazole work through a similar mechanism, so using both together may not provide additional benefit and could increase the risk of gastrointestinal upset or liver strain. CBD, curcumin, and milk thistle can be supportive additions, particularly for inflammation and liver protection. Ivermectin can also be used alongside if desired, as some protocols include it for its potential benefits, but it is not strictly necessary.
My mom has been diagnosed with pancreatic cancer 4th stage, many metastasis in liver, one in vessel, damaged lymphatic nodes around pancreas. She is 72, weight was 59. She use 444mg fenbendazole 2 times per day + 4,7ml of 1% ivermectin once per day. 6 days + 1 day off protocol. She also take milk thistle, tumeric, D+k2, zink, black cumin oil, apricot carnels, C, qwercitin, omega-3.
It is 11th day of treatment. She got +1kg and feels better but she got allergy, skin itchy, Maybe its time to have more day offs or lower the dose?
Hello, Paul, thank you for a question.
Yes, both fenbendazole and ivermectin can cause itching (pruritus) and rashes as side effects, though they are generally uncommon. This could also be due to an allergic reaction or a die-off effect (when parasites or other pathogens die, releasing toxins). In general, mild itching or rash is uncommon (<1-5%). Your mother could wait a little bit If itching is mild, it may go away on its own. If severe (swelling, breathing issues, or widespread rash), seek medical attention and take a break on your protocols. Also, antihistamines (like cetirizine or diphenhydramine) can potentially help with itching.
Thank you! The rush was over all body. We stopped ivermectin, used antihistamines + reosorbilact and it is gone in 5-7 days. Started again with lover dosage but analysis shows allergic reaction again so we decided to try ivermectin only 4 days + 3 day offs.
She is losing weight a lot. She lost 10 kg in the last year and now 3 kg in last month when using Fenbendazole and Ivermectin. What can be used to help her gain a weight at least a little?
Hello, Paul.
Cancer-related weight loss, or cachexia, is a complex condition involving muscle wasting, fat loss, and metabolic changes. Here are some of the most commonly used strategies to help preserve weight or slow down weight loss in cancer patients:
1. Appetite Stimulants & Medications
Megestrol Acetate (Megace) – Boosts appetite and weight gain.
Dronabinol (Marinol, THC) – Helps with appetite and nausea.
Mirtazapine (Remeron), Olanzapine (Zyprexa) – Increase appetite, good for nausea/depression.
Corticosteroids (Dexamethasone, Prednisone) – Temporary appetite boost.
L-Carnitine, Omega-3s – May reduce muscle loss.
2. Nutrition & Supplements
High-Calorie, High-Protein Diet – Small, frequent meals with protein and healthy fats.
Oral Nutritional Supplements (Ensure, Boost) – Easy extra calories.
BCAAs, Testosterone Therapy – Help preserve muscle.
3. Treat Underlying Issues
Pain & Nausea Control – Ensures better food intake.
Enzyme Supplements (Creon) – Help digestion if needed.
Anti-Inflammatories (Omega-3, Curcumin) – May slow muscle loss.
We also recommend consulting a healthcare professional for an evaluation of what could be done. It is hard to consult without knowing what she is using already and how medicine can interact with each other.
Good morning ,
My mother has ALK+ lung cancer. She will undergo gene therapy to treat her cancer. Can you tell me if fenbendazole and ivermectin can be combined with this therapy? If yes, what is the recommended dosage? She weighs 62 kg.
Thank you in advance for your feedback.
Courage to all
Hello, Thibault.
Some gene therapies sensitize cancer cells to treatments like chemotherapy or radiation. Since fenbendazole has some similarities to microtubule-inhibiting chemotherapy drugs, it’s possible that a synergistic effect could exist.
Ivermectin has been studied for its role in overcoming drug resistance in some cancers, which could potentially support gene therapy efficacy.
On the other hand, gene therapy is highly specific, and adding other agents like fenbendazole/ivermectin might alter immune responses or affect how gene therapy functions.
I have liquid fenbendazole (100mg/ml) for my 14-kilogram dog with brain cancer. What is the correct dosage in milliliters? I haven’t been able to find the correct dosage for the liquid form.
Hello, Iris and thank your a question.
For a 14 kg dog, it should be approximately:
Total Daily Dose: 14 kg × 50 mg/kg = 700 mg
Liquid Fenbendazole Concentration: 100 mg/ml
Volume to Administer: 700 mg ÷ 100 mg/ml = 7 ml
Hi my dad has been diagnosed with stage 3 or 4 cancer. 81 year old Waiting on biopsy. I have joined so many group chat that’s its over whelming. Can you please tell me if I should start him on 222 or 444 Feb. Approx weight is 78kilo. Also do I add ivermectin with Feb. Thanking you in advance .
Hello Barbara,
For your father’s weight of approximately 78 kg, the recommended Fenbendazole dosage is 222 mg per day, following a schedule of 6 days on, 1 day off. If you would like to confirm the correct dosage, you can use the dosage calculator available here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Regarding Ivermectin, we do not provide guidance on its use. If you are considering adding it to his protocol, it would be best to consult a healthcare professional or continue researching reputable sources. Let me know if you have any other questions.
I have been diagnosed with hyper eosinophilic syndrome. Which is a condition where my body is producing too many eosinophils. I recently found a study from the nih ( https://pmc.ncbi.nlm.nih.gov/articles/PMC9413524/ )showing that Fenbendazole lowers eosinophil counts. Are you familiar with this effect of fenbenazole? And what protocol would you recommend, i.e. dosing? I have a pulmonologist who wants to put me on a biologic.( Fasenra by AstraZeneca )Given the history of pharmaceuticals with the most recent pandemic I’m a little skittish to start injecting myself, if there’s another drug like Fenbenzole that could possibly render promising results, without the risks, or the risks of the unknown. I would love to hear your opinion. Thank you in advance for your time.
Hello, Brian. Great question!
Yes, a study on dogs infected with hookworms demonstrated a significant decrease in eosinophil counts after treatment with fenbendazole. The eosinophil count reduced significantly from 6.83 ± 0.53 on day 0 to 3.07 ± 0.26 on day 30.
Additionally, in a mouse model of allergic airway disease, fenbendazole treatment resulted in a lower number of eosinophils in the bronchoalveolar lavage fluid. This suggests that fenbendazole may have immunomodulatory effects beyond its antiparasitic action.
In studies involving animals (such as mice), doses were weight-adjusted and aimed at reducing eosinophilic inflammation, but human applications remain unclear.
If you decide to try fenbendazole, we know that 222-444 mg does not usually have adverse effects if you take care of liver health. So you may try to start slow and gradually increase dosage slowly and safely; also, take blood tests to see if its working and if your liver enzyme levels are in check.
Dear Diana,
The conversion amount depends on the concentration of your liquid Fenbendazole. Most liquid formulations specify the amount of Fenbendazole per milliliter (mg/mL) on the packaging. To determine how much liquid you need, divide your required dose by the concentration of your product.
If you are unsure whether you need a 222 mg or 444 mg dose, you can use the dosage calculator available here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/ by entering your body weight to find the appropriate dosage.
My sister is taking 222mg of fenbendazole with a break every 6 days. She has metastatic colon cancer with a huge liver mass. The fenbendazole did not affect her liver enzymes, but her daughter and I think that every time we give it, she gets tired and kind of in and out of dreams. Have you ever heard of a decline in mental status with the fenbendazole.. She does not have brain mets. We took her off of it when she got cholangitis and she got clear again. We gave it to her last night and she is back to the tired, goofy state. I hate to stop it with her bad cancer. She also takes Ivermectin at 2mg per kilogram.
Hello, Pam.
Fenbendazole has never caused this to anyone. So-called “brain fog” is not one of its side effects. On the other hand, ivermectin can cause these symptoms as it interacts with GABA receptors in the brain, especially in cases of blood-brain barrier permeability issues. There are much more instances when people have to pause or end ivermectin protocols due to side effects – but not fenbendazole.
How do you go about taking Fenbendazole and Ivermectin ? Can both be taking at the same time? If so how do you go about this? How should they be administered?
Hello, Kristine, and thank you for a question!
Yes, fenbendazole and ivermectin usually can be taken together.
Fenbendazole: Commonly taken at 222 mg (one 1 g packet of Panacur C 10%) daily with food, often for 3-7 days on, then 4 days off, depending on protocol. It’s usually well tolerated.
Ivermectin: Often taken at 0.2 mg/kg once or twice weekly (varies by protocol). Some take it every other day. It’s best absorbed with food.
Fenbendazole is generally more tolerable; ivermectin more often causes mild side effects like dizziness or fatigue in some. Be sure to use our fenbendazole dosage calculator to know your dosage. Also dont forget to take supplements to support your liver function
Good afternoon! Could you please advise me? My father has pancreatic cancer with a 3.5 cm tumor in the head of the pancreas, causing bile duct obstruction. A stent was placed to drain the bile, but it became blocked as well. Now the bile flow has been redirected externally, and the gallbladder has been removed. The surgery took place on January 10th. On January 17th, the doctor attempted to check the bile duct through the stent, but it triggered a fever and pain. On January 20th, the blood tests worsened—ALT and AST levels increased. On January 21st, he started taking fenbendazole and milk thistle. By January 27th, ALT and AST levels were still elevated, but now AST was twice as high as ALT (50 and 102 values). The doctors also convinced my father to consume bile with food, using alcoholic beer for this purpose. Could this have affected the ALT and AST levels? How can we support liver function so he can continue taking fenbendazole and add ivermectin? Thank you in advance for your response.
Hello, Wadim.
We are very sorry your father is going through this. Given his situation, there are a few key factors to consider:
1. ALT & AST Elevation Causes
Biliary obstruction and infection: The bile stent blockage and external drainage suggest potential cholestasis or infection, which can stress the liver and elevate ALT/AST.
Post-surgical stress: The recent surgery (January 10) and subsequent procedure (January 17) could have temporarily affected liver function.
Alcoholic beer consumption: Even small amounts of alcohol can put additional strain on the liver, especially if bile flow is impaired.
Fenbendazole & Milk Thistle: While fenbendazole is generally considered liver-safe, some people report mild liver enzyme elevations. Milk thistle is typically hepatoprotective, but reactions can vary.
2. Supporting Liver Function
Dietary Adjustments:
Avoid alcohol entirely—it can further stress an already compromised liver.
Consume easily digestible foods (e.g., boiled vegetables, lean protein, and healthy fats in moderation).
Increase hydration to support detoxification.
Supplements:
Milk thistle (which he’s already taking) may help protect liver cells.
NAC (N-acetylcysteine): A strong antioxidant that supports liver detoxification.
TUDCA (tauroursodeoxycholic acid): Often used for bile flow issues and liver protection.
Monitoring:
Keep checking liver enzymes and bilirubin levels.
If jaundice worsens, or if there’s a significant increase in AST/ALT, further medical evaluation is needed.
Hello, thanks for all the information available on this site. My husband has early stage prostate cancer. His PSA has been at 18-20 for over a year and half & MRI detected a size of tumor to be 12mm. He has been doing many natural therapies and just ready to start on Fenben. We have 500mg caps and after listening to Dr John Campell recently where he was reviewing the Clinical case studies and they were following the original protocol of 1g 3 days per week with 4 days off in conjunction with Vit e, CBD and curcumin. He is looking for guidance as he is healthy in every other aspect & we do keep an eye on his liver. His recent bloods had his AST @ 57 and ALT 2 47. He weighs 70kg and we are just a little concerned that the 1g could be too high for his liver. We would appreciate your guidance
Hello, Leita, thank you for a question.
We do not recommend such a high dose. However, it is up to you to decide. We would suggest at least to start at a little bit lower dose and increase after no side effects were monitored. When increasing dosage, take liver enzyme tests every few weeks and test every few months after you have reached the desired dose. 1 gram is usually a bit high for about half of the people, but if your husband’s overall health is good, you may very well try it. Don’t forget supplements that are beneficial for the liver and support its functions.
Best regards!
My wife has glioblastoma, she had undergone surgery to remove the tumor. She has completed her 40 radiation cycle and 6 months of temozolomide (5 days in a month for 6 months). She is taking alternative medicine (CBD oil , Curcumin and Indian ginseng or winter cherry). She is doing fine right now.
Wanted to check, should she take Mebendazole or fenbendazole for glioblastoma?
Hello, Pratik
Studies reveal that both fenbendazole and mebendazole possess the capacity to penetrate the blood-brain barrier. However, mebendazole shows better results in this case.
Thank you. Do you recommend any other medication apart from mebendazole, CBD oil, Curcumin, Indian Genseng? would taking ivermectin be beneficial? Also, read somewhere that Albendazole is also helpful. What do you recommend for brain cancer, glioblastoma? mebendazole, fenbendazole Or albendazole?
Dear Pratik,
Mebendazole, Fenbendazole, and Albendazole have all been explored for their potential benefits in glioblastoma, but Mebendazole is generally preferred due to its stronger ability to penetrate the blood-brain barrier and its promising results in research and some cases. Fenbendazole also crosses the blood-brain barrier and works similarly by disrupting microtubule function, but Mebendazole has shown better outcomes for brain tumors. Albendazole has some anti-cancer properties as well, but it may not be as effective in reaching the brain.
Ivermectin has demonstrated anti-cancer and anti-inflammatory effects, and some research suggests it may enhance other treatments, so it could be considered as part of a broader protocol. Additionally, metabolic therapies such as DCA (Dichloroacetate) and 2DG (2-Deoxy-D-Glucose) have been studied for glioblastoma due to their ability to interfere with cancer cell metabolism and make tumors more vulnerable to treatment.
If deciding between Mebendazole, Fenbendazole, and Albendazole for glioblastoma, Mebendazole is the most widely studied and appears to be the best option. However, combining it with metabolic approaches such as DCA or 2DG may further improve effectiveness. Let me know if you need more information on dosing and protocols.
Pratik June 17, 2025
Hello,
thank you for your reply on Glioblastoma
Post Jan’s 2025 MRI, Oncologist suggested to take bevasizumab for 9 cycles (once in 2 weeks) and Lomustine – CCNU (once in 6 weeks). She has already taken 7 cycles out of 9. We again did an MRI on 10th June 2025 post 7 cycles of Bev and CCNU, her overall tumor size is a bit reduced, but it has very slightly grown to new adjoining area.
Now, oncologist is recommending to go for Gamma delta T-cell therapy. I am a bit hesitant on this treatment since its relatively new and not many side effects are known.
I have started my wife to take 200 mg of mebendazole daily (her weight is 75kg) since the last 4 days. Do you suggest she up her dose? or start any other medicine like ivermectine or anything else?
How soon does mebendazole show some positive results?
Fenbendazole.org June 26, 2025
Hello, Pratik, and thank you for the follow-up.
Mebendazole usually shows some results around 2-3 months of usage. However, every organism is different and responds to this compound at its own rate, so it is difficult to predict the level of outcome and a time period. Given that your wife is 75 kg and does not have adverse effects, she may try to increase the dosage to 300–400 mg. Always monitor her well-being, overall health, and liver enzyme levels. If needed, you can do a pause or a cutbackto a previous dose.
My husband has rectal cancer stage 3 adenocarcinoma. He is just starting on fenben. He also has been taking ivermectin. A survivor we have come across recommends 1000 mg of fenben 3x a day. I see yours says 444 mg. Is taking 3000 mg ok?
Dear Doreen,
It is understandable to look for the most effective approach when starting a protocol, but taking such a high dose of fenbendazole, like 1000 mg three times a day (3000 mg total), could be very risky. Fenbendazole, though generally considered safe at standard doses, is metabolized in the liver. Extremely high doses may overwhelm the liver, leading to toxicity and potentially causing damage to this vital organ. Additionally, such high doses could strain the gastrointestinal system, causing nausea, vomiting, or diarrhea, and could even impact kidney function over time.
The recommended dose of 444 mg is calculated based on weight to ensure efficacy while minimizing the risk of side effects. Some individuals who report tolerating very high doses might have unique biological factors, such as particularly efficient liver metabolism or a history of slowly escalating doses that allowed their bodies to adapt. However, this is not typical and does not guarantee safety for others.
For your husband, starting with the recommended weight-based dose (444 mg for those over 90 kg) is the safest approach. The goal is long-term, consistent use rather than overwhelming the system with excessively high amounts. Following the standard protocol is more likely to provide benefits without unnecessary risks. Always monitor for any side effects and consider supporting liver health with supplements like milk thistle. Wishing your husband strength and success on his journey.
Hi,
Thank you for your reply. We met a senior oncologist and he’s prescribing bevacizumas 400 mg injection every 2 week and lomustine 120mg every 6 weeks (since her cancer has progressed since last scan in August 2024). This will continue for 3 months.
I wanted to check if mebendazole can be taken with these 2 medicines?
Hello, Pratik.
There are no well-documented interactions between bevacizumab and mebendazole in standard drug interaction databases. However, often times benzimidazoles work synergistically with lots of other cancer therapies. Lomustine is metabolized in the liver, and while mebendazole is also processed hepatically, its effect on lomustine metabolism is unclear. So we would suggest paying extra attention to your liver health and taking liver enzyme blood tests at least every 2-3 months to monitor your condition.
Hello John,
Yes, fenbendazole may have potential benefits for skin cancers like basal cell and squamous cell carcinomas, but it is generally used internally as part of a broader protocol. Its anti-cancer effects stem from disrupting cancer cell metabolism and inhibiting microtubule formation, which can slow the growth and spread of cancer cells. While there is limited evidence about topical use, some have explored applying it directly with oils or creams. Internally, it is often taken as 222mg (or adjusted based on weight) for 6 days a week, combined with other supportive therapies. Always monitor your response and adjust as needed!
I was diagnosed in 2020 with sclc stage 1. When a biopsy was done, my lung was accidentally punctured and I had to have a chest tube and spent 7 days in the hospital. The following month I had sbrt because they said I was not a candidate for surgery. I kept getting scans every 3 to 6 months and again in 2023 they said there was another nodule (again stage 1) that indicated cancer again near the same area as the other one. Again I had sbrt. My ribs are damaged from the sbrt now but so far they say there is no new growth of the cancer. Can you help me with figuring out a protocol of fenbendazole, ivermectin and whatever else? How long do I need to do the protocol? Thank you.
Dear Gale,
Fenbendazole has been used by many as part of a long-term protocol for cancer management and prevention of recurrence. The protocol for fenbendazole is generally designed for extended use, often involving taking it for 6 days on and 1 day off per week, depending on individual tolerance and response. I recommend using the dosage calculator available here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. This tool will help you determine the correct dose based on your weight. At the bottom of the page, you will also find a detailed explanation of the usage schedule and additional important tips.
Ivermectin is commonly added to protocols, often taken 2-3 times per week at 0.2–0.4 mg per kg of body weight, but this should also be adjusted based on your specific needs and tolerance. Many people include supplements like curcumin, quercetin, vitamin D3, and others to further support their overall health and immune system. Since your ribs have been damaged from SBRT, ensuring you are supporting bone health with adequate calcium, magnesium, and vitamin K2 may also be helpful.
The protocol is typically followed long-term, with regular breaks (such as one day off per week) to allow your body to rest and adjust. Consistency over time is key, as this approach is not a quick fix but a sustained effort to manage and prevent recurrence. I hope this information helps, and I wish you strength and success on your path to recovery and health.
Hello John,
For cancer, full-spectrum CBD is often recommended due to the entourage effect, where all cannabinoids and terpenes work together to enhance therapeutic benefits. It contains a small amount of THC (usually less than 0.3%), which some studies suggest may boost CBD’s effectiveness in managing symptoms and supporting overall treatment. If THC is a concern, broad-spectrum CBD can be a good alternative, as it includes other beneficial compounds without THC. Always choose a high-quality product from a reputable source with third-party lab testing to ensure purity and potency.
Hello, Don.
If you use it for deworming reasons for a horse, then you may use 10 mg per 1 kg of body weight. So, for example, if a horse weighs about 400 kg, you should give around 4000 mg of fenbendazole once a day for 5 days in a row. Repeat after 3 weeks. If unhatched parasite eggs are suspected, repeat the procedure in another round after 3 weeks to make sure the deworming is complete.
It may take a lot of time and effort to treat certain parasite infestations. If this is the case, please continue the deworming procedure every 2-3 weeks until there is no evidence of parasites and the animal’s health has improved.
Even if your animal feels better, the entire treatment plan should be completed to prevent relapse or the development of resistance.
Oonagh McCartney February 3, 2025
My friend has stage 4 pancreatic cancer and is now on palliative care only, he was diagnosed in October 2022. He is on oxinorm and oxicodone for pain relief, 75mg aspirin, creon 25000, esomeprazole clonmel 40mg, senokot, desunin D3 and zanax and insulin. He has Haemochromatosis too. He started on fenbendazole 222mg about 5 weeks ago and ivermectin 1.5ml orally of the 1% injectable solution, bimectin 3 weeks ago. He doubled both the fenbendazole and ivermectin over the last few days. He does take cbd drops and dandelion root. My question is about the other supplements that I have purchased for him as we are afraid of possible interactions with all the other medications he is taking and his other health issue. I got turkeytail mushroom extract, berberine, curcumin, quercetin, green tea extract, Vitamin E capsules, serrapeptase, milk thistle, mistletoe and zinc. Which if any are safe to take? He was in hospital 2 weeks ago with a temperature, they did a scan and blood tests. The doctor was surprised and happy to see that there was no blockage in his bile duct as they suspected and his liver enzymes had dropped from 577 to 280 in a couple of weeks. He is very tired and has no appetite and is starting to lose hope.
Fenbendazole.org February 3, 2025
Hello,
You are doing an amazing job supporting your friend, and the supplements you have chosen could provide real benefits. Most of them are generally well-tolerated, and while some require a bit of caution, they are unlikely to cause harm if introduced gradually.
Milk thistle, turkey tail mushroom, and zinc can support his liver and immune system. Curcumin, quercetin, and serrapeptase have anti-inflammatory properties that may help with overall well-being. Berberine can support metabolic function, and green tea extract is a great antioxidant. Mistletoe is widely used in integrative cancer care and could offer additional support.
The key is to introduce them slowly, one at a time, and monitor how he feels. The only ones to be cautious with are curcumin and serrapeptase due to their blood-thinning effects when combined with aspirin. Berberine and quercetin can lower blood sugar, so it is good to watch his insulin levels.
The fact that his liver enzymes have already improved significantly is a great sign. Even though he feels tired, his body is still responding and fighting. Keeping his routine simple and manageable will help. You are making a difference, and every bit of care and support matters. Keep going—there is still hope.
My mom has has half of her pancrease removed (whipple surgery) due to Pancreatic cancer and is taking Pancrelipase/CREON in the beginng of every meal. is it safe to take Fenbendazole in the middle of the same meal? Also, there is metastais in the liver now since the cancer returned to the tail of the leftover pancreas, how much dosage should she use for fenbendazole and milk thristile? Thank You so much for your time!
Hello Diana,
I am sorry to hear about your mother’s condition. It is generally safe to take fenbendazole during the same meal as Pancrelipase/CREON. Fenbendazole is best absorbed with fatty foods, so taking it in the middle of a meal with healthy fats like avocado or butter is ideal. The typical dosage is 222mg daily for six days, followed by one day off, but with metastases, some use 444mg daily depending on tolerability. Milk thistle, standardized to 70-80% silymarin, is often used to support liver health, with a typical dose of 150-300mg taken 2-3 times daily. Monitoring liver enzymes is important to ensure everything is well-tolerated. Wishing you and your mother strength and the best possible outcomes.
Husband had surgery for HPV related oral cancer in December 2023, Surgical removal of tonsil, portion of tongue, and lymph nodes on left side of neck. Completed 33 rounds of radiation. Was doing so well, eating well, strong, etc….but now, a year later, has just been told cancer is now on larynx. Doctor has recommended removal of the larynx. We started him on fenben after the first diagnosis of cancer in 2023 and had been using it 3 days on and 4 days off since radiation. We are now back on the fenben daily and about to add CBD. (And trying to get a referral MD Anderson for 2nd opinion.) Had bladder cancer 3 years ago and now sometimes has slightly elevated kidney numbers. (1)Would it be helpful to take both milk thistle AND tudka?
(2)Also, can you tell us if there have been studies on fenben and oral cancer? Or any testimonies that might be encouraging?
(3)Would a primary care physician order and analyze blood tests or do individuals usually have to do this themselves?
Thank you so much for what you do. We appreciate your response so much.
Dear Lainie,
Thank you for sharing your husband’s journey, and I am sorry to hear about the recent challenges. Taking both milk thistle and TUDCA may be beneficial for supporting liver and kidney health. Milk thistle is known for its antioxidant and anti-inflammatory properties, which can help protect liver cells, while TUDCA supports bile flow and reduces liver stress, which may be particularly useful if there are slightly elevated kidney numbers. Both are generally well-tolerated and can be used together to provide comprehensive liver support.
Fenbendazole has shown potential as a treatment option for various types of cancer, including oral cancer, based on numerous reports. Many individuals have shared positive experiences, noting significant improvements when incorporating fenbendazole into their protocols. These accounts often emphasize the importance of combining fenbendazole with other supportive therapies and maintaining a consistent schedule to achieve the best results.
A primary care physician can typically order and analyze blood tests, including liver and kidney function panels, as part of routine care. If you are using supplements or medications like fenbendazole, it is important to monitor these parameters regularly. If your primary care provider is not familiar with your specific needs, you may need to explain the importance of these tests or consider working with a laboratory directly to order and manage them independently. I hope these answers provide some clarity and support. Your proactive approach and dedication to exploring options are commendable, and I wish you and your husband strength and success in his treatment journey.
My wife, in her early 40’s, has a very aggressive colorectal cancer. It’s stage IV, metastatic to liver and lungs. After 5 rounds of FOLFOX proved unsuccessful, she has been placed into hospice care. The tumors on her liver have grown through her abdominal wall and are very near to rupturing the skin just below her ribs/sternum.
What do you think about applying fenbendazole paste directly on the affected area, perhaps mixed with a carrier agent such as DMSO or something milder such as coconut oil? Would the fenben penetrate the skin and directly contact the tumors?
Hello,
I am very sorry to hear about your wife’s condition. Applying fenbendazole paste topically with a carrier agent, such as DMSO or coconut oil, is not a standard method of using this compound. Fenbendazole is typically taken orally, as this allows it to be absorbed into the bloodstream and potentially reach affected areas throughout the body.
While DMSO is known for its ability to penetrate the skin and carry substances into deeper tissues, the effectiveness of using it to deliver fenbendazole directly to tumors is not supported by scientific evidence. There is no clear data to suggest that fenbendazole applied topically in this way would be able to reach or affect tumors beneath the skin or within the abdominal wall.
If you are considering this approach, it is important to carefully evaluate the potential risks, such as skin irritation, unpredictable absorption, or interactions with other treatments your wife may be receiving. Exploring oral administration of fenbendazole according to established protocols might be a more reliable option, as this method has been more widely discussed and used by others in similar circumstances.
It is also crucial to monitor her comfort and overall well-being during any alternative approaches. Ensuring she has support and relief from symptoms during this challenging time is of utmost importance. Wishing you both strength and peace.
Dear Steven,
The dosing schedule for fenbendazole depends on the condition being treated. If you are taking it for cancer, the recommended dosage for you is 444 mg six days a week, with a one-day break.
Since you are using Panacur 1.5 vet, you will need to calculate the fenbendazole content per pill and ensure the correct human dosage aligns with the recommended 444 mg. To simplify the process, you can use the dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello Vero,
We do not have information about the use of chlorine dioxide, so we cannot comment on how it might interact with chemotherapy or fenbendazole. However, fenbendazole is generally considered a safe medication and is not known to interfere with most drugs or therapies.
If you decide to take chlorine dioxide, fenbendazole, and chemotherapy together, it is essential to closely monitor your liver enzymes and overall well-being to ensure safety.
Please note that fenbendazole should be paused two days before starting a chemotherapy course, during the course itself, and for two days after completing the chemotherapy. This precaution helps avoid any potential interactions or added stress on the body during treatment.
Hi there,
Do you have a preference on fenben supplier? And is the animal liquid fenben good enough for humans, as it appears to be cheaper?
I went to fenbendazole.org/supplier that you had mentioned in a previous post—— but the site said it could not be found
Hello, Whitney!
Hello, sorry, but the suppliers section had to be removed due to confidentiality concerns. We do not distribute or sell anything ourselves, so we removed this section because it would cause a lot of controversy and confusion among readers.
However, we would recommend FDA-approved products such as Panacur or Safeguard. Also, if you decide to buy online, we suggest checking out review sites such as Trustpilot. Choose a professional and official company homepage to choose from.
Hi I have stage 3 small cell carcinoma iv had 12 chemo 30 radiation and now doing immunotherapy my last mri revealed a spot on my brain so I’m doing follow up scans then possible surgery them radiation I’m Terrified of this I also have moderate copd and take pain meds cholesterol meds anxiety meds and few supplements including turkey tail someone I met someone who told me how she was stage 4 cancer with 3 mo to live and was kicked out of treatment after refusing the covid vaccines she said she followed your protocol and is now cancer free so she referred me to try it im wondering what u think on it
I’ve been using Curaderm on my Infiltrative BCC (on my nose) for the last 4 weeks and have just started oral Fenbendazole (222mg, 6 days a week). My lesion has gotten much bigger due to the Curaderm, but it doesn’t seem to be healing at all, even though a lot of the redness around it has gone and it looks mostly like a big open sore.
I had read that people have had success using Fenbendazole paste (Horse dewormer?) as a physical application. Has anyone tried this or do you have any suggestions? Could I also open a capsule of my oral Fenbendazole and mix it with some type of oil (emu/coconut/temanu?) and apply it to the lesion as well?
Hello Shawn,
Thank you for sharing your experience, and I understand how concerning this situation must be. It is encouraging that you are already seeing some reduction in redness, which might indicate that the Curaderm is actively targeting the lesion. However, the healing process can take time, and it is not uncommon for such treatments to make the lesion appear worse before improving, as damaged tissue is removed.
Regarding topical application of fenbendazole, while there are reports of its use in this manner, there is no clinical research supporting its effectiveness or safety as a direct topical treatment for skin cancer. Opening a fenbendazole capsule and mixing it with a carrier oil like coconut oil or emu oil could be an option, as these oils are generally gentle on the skin. However, it is essential to perform a small patch test first to ensure there is no irritation or adverse reaction. If you decide to try this, monitor the lesion closely for any signs of worsening or infection.
Keep the area clean, avoid excessive exposure to the sun, and consider using supportive supplements like Vitamin D3 and curcumin, which may promote healing.
Lastly, remember that healing takes time, and setbacks can occur. Stay proactive and positive, and continue exploring options while monitoring your progress carefully.
Hi,
Thank you for helping sp many people.
I was diagnosed with stage 4 cancer in May of last year(brain and lung). I did a lot of research and ended up doing my own cocktail at home with chemo.
I am taking Amla + Apricot seeds daily, tumeric/curcmin…and my daily one a day vitamin + extras, vitamin D3 and a few more.
My brain cancer has disappeared and the lung has remained stabled.
What do you recommend for a slim guy at 52kg with stage 4 diagnosis, I’ve stared Fenben, I’m taking 444mg X 6 times a week (skipping Sundays). Should I remain on 444mg or lower it to 222mg?
Thank you
fenbendazole December 6, 2024
Dear Martin,
Congratulations on the incredible progress you have made, with your brain cancer gone and your lung cancer stable. Your dedication is truly inspiring.
For your fenbendazole dosage, it depends on how you are feeling and your liver health. If you feel good and your liver enzymes are normal, you can continue with 444 mg, six days a week, as it seems effective. However, if you feel unwell or notice liver strain, reduce the dose to 222 mg, which matches your body weight (222 mg daily, six days a week with one day off).
I recommend adding milk thistle to your protocol to support your liver. It is known for reducing liver strain and helping maintain liver health. Additionally, you might explore complementary therapies like Dichloroacetate (DCA) and 2-Deoxy-D-Glucose (2DG), which target cancer cell metabolism and have shown promise in brain and lung cancers. Both work well with fenbendazole in some protocols.
If your liver stays healthy and you feel fine, 444 mg is okay to continue, but lowering it to 222 mg is a good option if needed. Wishing you continued success and strength on your journey.
My dad has stage 4 colon cancer with a 4cm solid tumor between the bladder and rectum, and metastasis in the lung and brain. His current treatment is Oxaliplatin with UFT (Uracil and Tegafur) (oral chemo) and Avastin as targeted drug. I want him to start Fenben but I’m too worried about the possible side effects such as diarrhoea. Since his last episode of diarrhoea due to possibly radiation side effects or high dose melatonin of 60mg/night, he has lost a significant amount of weight and simply can’t afford to have another diarrhoea reaction. He’s currently 41kg, so the recommended dose is 222mg/day, 6 days on, 1 day off. I want to follow Joe Tippins current protocol of Fenben and the Ultra Botanica ONCO-ADJUNCT™ 4 PATHWAYS but I don’t know if the Fenben or the 4 pathways will harm his conventional treatment. Do you recommend 222mg/day Fenben + Ultra 4 pathways, along with Tudca for some with gastrointestinal issues like him?
Dear Lexi,
Thank you for your question. We are an informational page focusing on fenbendazole, and unfortunately, we do not have information regarding treatments such as Ultra Botanica ONCO-ADJUNCT™ 4 PATHWAYS or its compatibility with conventional therapies. Fenbendazole itself has been reported to occasionally cause gastrointestinal side effects, including diarrhea. Given your father’s low weight and his history of significant weight loss due to diarrhea, this side effect could pose additional risks to his health. If you decide to proceed with this treatment, it will be crucial to carefully monitor his overall well-being and regularly check blood parameters to ensure his body tolerates it well.
To help prevent diarrhea, you could start with a lower dose of fenbendazole than the recommended 222mg per day, gradually increasing it if he tolerates it well. It is also important to ensure fenbendazole is taken with food, as this can improve absorption and reduce gastrointestinal irritation. Staying well-hydrated throughout the day is equally essential to support digestive health. You might also consider incorporating supportive measures, such as TUDCA (tauroursodeoxycholic acid) to protect and support the gastrointestinal system, and probiotics to maintain gut balance. Additionally, focusing on easily digestible, nutrient-rich meals and avoiding foods that are high in fat or overly spicy may further reduce the risk of digestive discomfort.
Introducing any new treatment must be done cautiously, especially considering your father’s current health challenges. Regular monitoring and a gradual approach can help minimize risks while supporting his overall health. We wish you and your father strength and positive progress in his journey.
Hello I have advanced prostate cancer stage 4 with bone metastases in my knee, shoulder, sternum, ribs, pelvis, spine. I have a Zolodex injection every 12 weeks and take 160mg enzalutamide daily. In addition, I have blood pressure tablets – 2mg candesartan, 10mg amlodopine. I am 91kg and 60 years old. My current PSA is 0.52 (doubling every 8-10 weeks).
I am looking to start taking fendendazole – I note that the calculator changes dosage between 222mg and 444mg depending on whether my weight is below/above 90kg. I am currently 91kg but may well fluctuate around this figure. It seems strange for the dose to double after a 1kg difference in weight. Can you please advise what someone borderline like me should do?
Is there any data on how fenbendazole interacts with the medication I am taking (zolodex, enzalutamide, candesartan, amlodopine)?
The recommended curcumin appears to interact with certain chemo drugs – I am hoping to put chemo off for as long as possible, but are there any that you know fenbendazole should not be taken with?
Is there any data for how long it takes for fenbendazole to have an effect?
Are there particular times of day that the fenbendazole and supplements should be taken to maximise absorption and effectiveness?
Hello Barry,
Thank you for reaching out with your questions.
For a weight of 91 kg, a dose of 444 mg of fenbendazole per day is within the recommended range. However, considering your advanced condition and the medications you are currently taking, it may be advisable to start with a lower dose of 222 mg per day. This would allow your body to adjust gradually. After a few weeks, if you experience no adverse effects, you may consider increasing the dose to 444 mg per day.
Fenbendazole is generally a safe and well-tolerated medication, and it rarely has interactions with other drugs or supplements. Currently, there are no documented drug interactions with fenbendazole. Nevertheless, it is recommended to monitor liver enzymes regularly while using fenbendazole, as with any new supplement or drug addition, especially in the context of long-term usage. To support liver health, you might also consider using milk thistle as part of your regimen, which is often advised when taking fenbendazole.
Fenbendazole is a long-term treatment, and it typically requires two to four months of consistent use to begin seeing potential benefits or improvement. The effects are gradual, so patience and consistency are key.
For more information on supplements that may be beneficial to take alongside fenbendazole, please refer to this link: https://www.fenbendazole.org/fenbendazole-information/supplements/
There is no strict timing required for taking fenbendazole; however, taking it with food can help with absorption. The same applies to most supplements, although it is always best to follow any specific instructions provided with individual supplements to maximize their effectiveness.
Please do not hesitate to reach out if you have further questions. Wishing you all the best on your journey to health.
Good morning. My Labrador Retriever was diagnosed with Oral Squamous Cell Carcinoma last week and am looking for something to help her. I found fenbendazole, as well as your calculator, but I am seeing differences in the dosing amounts. Can you clarify the correct dosing please? Your calculator is calling for 666mg per day for a 100# canine, whereas “Safe-Guard” is calling for 1g per 10# of body weight. This would put her at 10g or 10,000mg per day. I just want to clarify the correct amount prior to dosing.
Hello Michael,
Thank you for your question. For a 100lb dog, the cancer support dose of fenbendazole is indeed 666mg per day, as indicated by the calculator. However, it is important to note that the “Safe-Guard” packets contain only 22.2% fenbendazole, meaning each 1-gram packet provides 222mg of active fenbendazole.
Therefore, to reach the 666mg daily dose, you would need three 1-gram packets of Safe-Guard per day for a 100lb dog. The dosing discrepancy you are seeing is due to the fact that Safe-Guard is not pure fenbendazole; it contains additional ingredients.
Please carefully check the dosage information on the Safe-Guard package to ensure your dog receives the correct amount of active fenbendazole.
Hello Malcomn,
There have indeed been accounts of people with different types of lymphoma, including diffuse large B-cell lymphoma, using fenbendazole as part of their treatment plan. While formal studies specifically targeting this cancer type are limited, some individuals have shared positive experiences when integrating fenbendazole into a comprehensive approach.
If you are thinking about adding fenbendazole, it is essential to select the right dose and schedule. You can use this calculator to guide you: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Wishing you all the best on your journey.
Good Morning,
Thank you for all the information shared. I would like to know if Fenbendazole could be used for breast cancer? if so, could it be used at the same time with chemotherapy?
Hello Anna,
Thank you for reaching out. Yes, fenbendazole has shown promising results for breast cancer in various reports and experiences. It may indeed be used alongside chemotherapy; however, it is advisable to pause fenbendazole use two days before chemotherapy and resume two days after the chemotherapy session. This approach allows for optimal effectiveness while minimizing potential interactions.
Hi Anna,
Have you started taking Fenbendazole? What is the dosage? How do you feel after fenbendazole if you take it? What is the stage of your breast cancer? How do you monitor your liver and kidneys? Do you take other supplements? What exactly and what is the dosage?
I will appreciate it if you can answer me. Thank you and have a nice day
I’m writing on behalf of my father, a 70-year-old male, currently weighing around 150 pounds (although his ideal weight is closer to 160). He was diagnosed with stage 3C melanoma in 2023. Initially, the melanoma was located on his back, but during his annual checkup in spring 2024, we discovered that it had spread to other areas, and his oncologist upgraded the diagnosis to stage 4.
Since then, he’s undergone four rounds of Opdivo and Yervoy (at four-week intervals). However, this treatment didn’t yield positive results. Instead, it caused severe side effects, which included:
• Major side pain: This subsided after transitioning to a very limited, almost no-sugar diet.
• Severe restless legs: At one point, this kept him awake for nearly a week, though it has since improved.
• Swelling: First his feet, then his ankles, and eventually his legs.
• Rash: This developed on his lower legs.
• Extreme bloating: This is still ongoing, and we believe it’s partially related to the treatment.
Since he has been off the dual immunotherapy treatment for a few weeks, these side effects have slowly improved, though some are still lingering.
Following the four rounds of dual treatment, another PET scan revealed the cancer had spread further, reaching the liver lining and stomach. His oncologist explained that the bloating could be due to the cancer occupying space in the stomach and possibly restricting circulation to his lower extremities (which likely caused the swelling).
Given that both Keytruda and the Opdivo-Yervoy combination (both immunotherapy treatments) have failed, we are now preparing to start targeted therapy pills (Braftovi and Mektovi) to address the cancer in the stomach. However, this has been delayed due to liver dysfunction caused by the dual immunotherapy. Thankfully, he is responding well to Prednisone for this issue.
Over the past few weeks, my father has been off dual treatment, continuing on a very strict, almost zero-sugar diet, high in fiber, and we’ve been applying Queen of Thrones castor oil to his liver nightly. We are also extremely interested in introducing Fenbendazole alongside the targeted treatment. We’ve already discussed this with his oncologist, who only requested we inform him if we start Fenbendazole.
We did try using the FenBen dosage calculator, but we are unsure about the proper dosage for treating an active case of cancer. We are also concerned about the impact of his current weight (150 lbs) versus his ideal weight (160 lbs) and how that influences the dosage recommendation. Any insights on this would be greatly appreciated.
This leads me to a crucial question: Given the severe side effects of the dual immunotherapy (and its lack of efficacy), we are genuinely wondering if it’s even worth starting the targeted pills at all. We’ve read that many treatments eventually lose effectiveness as the body builds resistance, whereas Fenbendazole seems to work differently and may not face the same issue.
I’ve seen countless of positive testimonials about Fenbendazole’s effectiveness against cancer. I’d love any advice or shared experiences regarding:
1. Fenbendazole dosage recommendations for an active fight against stage 4 melanoma, considering his liver and stomach involvement.
2. Safety or compatibility of Fenbendazole with the targeted pills (Braftovi and Mektovi), should we decide to pursue both routes.
3. Any insights or tips from those who have had similar experiences with melanoma, particularly at this advanced stage.
As I’m sure you can understand, we’re trying to make the best decisions possible, and I greatly appreciate any input or guidance.
Hello,
It is encouraging that you are considering incorporating Fenbendazole into your father’s treatment plan. According to the dosage guide, for an individual weighing 150 lbs, the recommended dosage is 222 mg per day, administered 6 days per week with 1 day off. It is advisable to take Fenbendazole with food to enhance absorption and minimize potential side effects. Despite your father being slightly below his ideal weight, the 222 mg dosage remains appropriate, although his condition should be monitored and adjusted as necessary.
Regarding the combination of Fenbendazole with Braftovi and Mektovi, it is positive that his oncologist is aware of and supports the use of Fenbendazole. This drug functions differently from conventional therapies and is generally well-tolerated. Keeping his oncologist informed is essential to prevent any unexpected interactions. In most instances, Fenbendazole has been safely combined with other cancer treatments.
Many patients with advanced melanoma have successfully integrated Fenbendazole into their treatment regimen, reporting tumor reduction and overall health improvements. Given your father’s positive response to prednisone and the dietary changes that have helped alleviate side effects, continuing these supportive measures alongside Fenbendazole could be beneficial. Additionally, a liver-support supplement, such as Milk Thistle, may be considered to further support liver function.
If you decide to proceed with both Fenbendazole and the targeted therapy, regular monitoring of liver enzyme levels and overall health is crucial. Many individuals have experienced favorable outcomes with Fenbendazole, and it is commendable that you are exploring all available options. Wishing you and your father continued strength and success in this journey.
Dear Angela,
There are no known significant interactions between Fenbendazole and Viagra (sildenafil). However, since both medications are processed by the liver, if your partner has any liver conditions or is taking other medications that could affect liver function, it would be wise for him to monitor his health closely.
Thank you. Sorry for my slow response. I stopped FenBen until 09/13, and the new numbers are
AST 140
ATL 78
Still high, but I’m not as stressed. I was starting to have more pain after no FenBen for a couple of weeks, so have now resumed @ 222mg/day, with 4 days on, and 3 days off being the plan. All the other liver numbers were within normal ranges.
Should I consider 3 on, 4 off, or even 2 on & 5 off until the ALT/AST numbers drop back into normal range?
I don’t want to fry the liver, but I don’t want the tumor to start growing again.
Next CaT scan is scheduled for 10/01. Next blood test for 09/26.
Hello and thank you for a comment.
Yes taking fenbendazole at least 3 or 2 days a week is still much better then nothing. You may continue this until your liver enzymes comes down to normal range. Also be sure to check our “supplements” page. https://www.fenbendazole.org/fenbendazole-information/supplements/
There is a lot of good information about liver protecting compounds and supplements. We hope your liver gets better soon!
What dosage of Fen would you recommend someone who is 225lbs with liver cancer? I have been giving 222mg 2gram packet 3 times a week with 4 days off for the last couple weeks to start. Is it ok to bump it up to 6 days a week? Is the 2gram packet enough (Panacur C)? . Just want to make sure we are doing enough to fight the cancer. We are taking other supplements , Curacumin 2x daily, Milk thistle 2x daily , vitamin E daily, and CBD drops nightly. Thanks in advance.
Hello Mike,
It sounds like you are doing everything right so far with the Fenbendazole dosage, and your supplement regimen seems well-rounded. If the liver enzymes are stable and the patient is feeling well, it is generally considered safe to increase the Fenbendazole dosage to 444 mg per day, 6 days a week. This could help maximize the potential benefits in fighting cancer. However, it is important to regularly monitor both health and liver enzyme levels to ensure the treatment remains well-tolerated and to catch any potential issues early.
Hello, my dad has metastasis on the liver and lungs. He is taking Fenbendazole, Milk twistle, Curcumin and the others from the protocol. However he has pain in the liver and back, also he has high temperature from one month for which, he is taking nurofen. So my question is – Is it apropriate to take Fenbendazole with Nurofen for the temperature and pain.
Hello Djei,
While there are no known significant interactions between Fenbendazole and Nurofen (ibuprofen), caution should still be exercised due to your dad’s liver metastasis. Both medications undergo hepatic metabolism, which may place additional strain on liver function. It is essential to monitor liver enzyme levels regularly to assess the liver’s ability to process these medications safely. If liver enzyme levels remain within normal or only mildly elevated ranges, it is generally considered safe to continue the protocol.
To ensure optimal absorption and minimize potential side effects, Fenbendazole should be taken with food or immediately after a meal. Additionally, it is recommended to follow a schedule of 6 days on and 1 day off when taking Fenbendazole. This allows the body a regular break, which can help reduce any potential strain on the liver, especially in cases of liver metastasis.
For accurate dosing, you can refer to the dose calculator available here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Can you tell me please if Joe Tippins cancer protocol including milk thistle would interfere with hormone therapy drug called Orgovyx (pill form) that I’m taking for prostate cancer? I also have stage 2 bladder cancer that is at this time still contained in bladder. Currently undergoing a 3 week BCG treatment for that.
Dear Greg,
There is limited research available on the interaction between fenbendazole and Orgovyx (relugolix) or BCG therapy. Nevertheless, caution is advised, as fenbendazole can influence liver enzyme activity, potentially affecting the metabolism of Orgovyx, a hormone therapy processed via the body’s metabolic pathways. Additionally, because BCG is an immunotherapy for bladder cancer, treatments like antiparasitic drugs, such as fenbendazole, may interfere with the immune response.
If you choose to incorporate fenbendazole into your treatment regimen, it is recommended to start with a low dose and gradually increase it. Monitoring liver and kidney enzyme levels, as well as overall health, is essential. It is not advisable to exceed 444 mg of fenbendazole per day. The suggested protocol is to take it 6 days a week, with a 1-day break.
I take that Orgovyx for prostate cancer along with Xtandi. I also have been taking 222mg FBZ for almost 5 years daily. Increased it to 444mg daily about 6 months ago. Also a slew of supplements, with milk thistle, and 24mg IVM daily. No problems, although PSA is increasing a little lately and I still have cancer in my spine…and they say other bones too. It was in my lymph nodes and bones in Feb 2020, now just in my bones…have not yet gotten it out of my bones…although I think it improved for a long time but still having trouble in my spine.
I have stage 4 rectal cancer. Diagnosed as stage 3 in April/May, confirmed spread to liver early July. Started 222mg fenben, milk thistle, turmeric/curcumin, and ivermectin on June 11. Upped fenben to 444mg in mid-July. Pretty much running 7 days per week.
Had labs done 06/28 & 08/28. Pain has been relatively low since starting the protocols, but have been feeling much better in the last few weeks. I have some questions on the lab results:
CEA went from 4.7 (high) on 06/28 to 7.1 (higher) on 08/28
AST went from 21 (in normal range) to 234 (way high)
ALT went from 18 (in normal range) to 409 (way high)
Platelets dropped from 664 to 599 (still high)
Most everything else was within normal ranges.
The tumor appears (to me) to be shrinking, but won’t be able to confirm until doing another CT scan. The first/last/only one so far was 07.01.
Should I be concerned about the effect of the fenben on the liver with the AST & ALT numbers being so high?
Any thoughts or suggestions?
Thank you for this resource.
Hello Clyde,
It is great to hear that you are feeling better and that the tumor seems to be shrinking. However, the significant rise in your AST and ALT levels is concerning, as these enzymes are crucial indicators of liver function. Elevated levels might suggest liver inflammation or damage, possibly related to the medications or supplements you are taking, including fenbendazole.
The sudden spike in AST and ALT levels indicates that your liver might be under stress, so it is essential to keep a close eye on these levels. You may want to consider adjusting your current protocol.
Given the elevated enzyme levels, it could be beneficial to reduce the fenbendazole dosage or incorporate breaks in your regimen to allow your liver time to recover. We suggest modifying your schedule to 4 days on and 3 days off, which might help give your liver more time to heal.
It is good that you are continuing with liver-supporting supplements like milk thistle. It might also be helpful to discuss additional liver support strategies with your healthcare provider.
Since your CEA levels have increased, it is crucial to follow up with further tests, like your upcoming CT scan, to better understand what is happening with the tumor and your overall health.
Hello, Would you recommend Joe Tipps protocol for someone just diagnosed with liver cancer? Not sure what stage yet or if spread. Would you recommend to work in Ivermectin also ? Any advice as far as a plan would be appreciated. Thanks
Hello Mike,
Thank you for your question. It is possible to use Fenbendazole in cases of liver tumors, but it is crucial to closely monitor liver enzyme levels during the treatment. We recommend including Milk Thistle in the protocol to support liver function.
As for Ivermectin, we cannot provide guidance on its use since we are a Fenbendazole informative page. However, you can determine the appropriate dosage and schedule for Fenbendazole by using our dosage calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
I was wondering if you could address other protocols recommending the amount you take as needing to be the same as a primate?
Much larger doses than your site recommends.
We are more like a primate than a dog so I was wondering if you could speak to this
Hello,
Certainly! The dosing protocols for animals, such as primates or dogs, are different from those for humans due to differences in metabolism, body composition, and how each species processes medications. While it might seem logical to compare dosages between primates and humans because of our genetic similarities, it is important to remember that the dosing recommendations for animals are specifically tailored to their physiology.
In humans, the dosage of fenbendazole needs to be carefully calculated based on factors such as body weight, overall health, and the specific condition being treated. This ensures that the medication is both safe and effective. Using much larger doses, as some animal protocols suggest, could lead to unnecessary risks or side effects without providing additional benefits.
To determine the appropriate dosage for humans, we recommend using the dosage calculator available on our site: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. This tool is specifically designed to help you find the right dosage based on your individual circumstances, ensuring that you get the best possible results safely.
Hi, my mom started on this protocol for stage 4 metastasis breast cancer that has spread to the liver, lungs, and bones. Basically all over her body. She has now decided to take the hormone blocker the oncologist prescribed her at the same time. I am worried that if she mixes the two it could be bad for her. The hormone blocker they have her on is Kisqali and Letrozol. Please let me know what you think.
Dear Zoe,
When considering the use of fenbendazole alongside these medications, it is important to be aware of potential interactions, even though specific data on these combinations are limited. Fenbendazole is part of the benzimidazole drug class, and while there is not well-documented evidence of direct interactions with Kisqali or Letrozole, all three are metabolized by the liver. Combining them may increase liver strain, so monitoring liver function is crucial. Depending on your mother’s health, you might want to consider adding Milk Thistle to the protocol to support her liver health.
Hello Bonnie,
Yes, there is evidence suggesting that fenbendazole can cross the blood-brain barrier, though research is still somewhat limited. Its ability to penetrate the blood-brain barrier has sparked interest in its potential for treating certain cancers, particularly those in the brain. You might find this case report interesting: https://www.fenbendazole.org/diffuse-midline-glioma/.
My mother was diagnosed with stage 4 pancreatic cancer. She’s being fed with Glucerna 1.5 via g-tube. Her latest CT scan 8/19/24 showed nodules on her lungs and bones. She doesn’t eat much because of the pain, which concerns me about being able to feed her fatty food to help absorb the panacur c granules. Would we be able to dissolve the granules in liquid to push into her g-tube? Any help with this would be greatly appreciated. My concern is trying to find the most effective way for the body to absorb the fenbendazole.
Dear Obed,
Yes, it is indeed possible to dissolve fenbendazole in water and administer it via the g-tube. This method should allow the medication to be effectively delivered to your mother. Additionally, you may want to consider using fenbendazole in liquid or powder form, as these options could simplify administration through the g-tube and ensure accurate dosing.
As for the absorption of fenbendazole, it is important to note that taking the medication with food can enhance its effectiveness. While any type of food is generally sufficient, the key is to avoid administering fenbendazole on an empty stomach. Food helps with the absorption process, ensuring that the body can utilize the medication more effectively. Given your mother’s situation, even small amounts of food should be adequate to aid in the absorption of the fenbendazole.
If you have any further concerns or need additional advice, feel free to reach out—we would be glad to help ensure her treatment is as effective and comfortable as possible.
Dear Cheryl,
Semaglutide and fenbendazole are distinct medications with different mechanisms of action. There are no well-known interactions between the two, as they operate differently within the body, making a direct drug interaction unlikely. However, since both are processed by the liver, it is important to monitor liver function if taking them together to ensure no adverse effects occur.
Hello!
My relative has metastasis in the liver and lungs, two years after chemo and operation of rectal cancer.
Before over 20 days, he started Fenbendazole and we have made a monitoring of the liver enzymes ASAT which is 47, ALAT is 37. Before Fenbendazole they were ASAT- 58 and ALAT – 29. ALAT is in the norm, but ASAT no.
However we’ve monitor also GGT which is a lot higher than before and the norm. The norm is 5-50, now the result is 249, before it was 194.
So I am not sure, should we monitor the GGT or just ALAT and ASAT.
Thank you!
Hello Dzheylya,
It is great that you are monitoring liver enzymes while your relative is on Fenbendazole. The changes in AST and ALT levels are definitely important, but the increase in GGT is something to keep an eye on as well. GGT is another enzyme that can indicate liver stress, so it is a good idea to keep monitoring it along with AST and ALT.
To support liver health, you might consider adding milk thistle to the regimen. It is known for its liver-protective properties and could help manage enzyme levels. Keep tracking these levels to get a full picture of how things are progressing.
I utilized the dosage calculator provided with this page which suggests the Fenbendazole 222 mg. I am curious when looking at purchasing for example the Panacur C or Safe Guard brand do I need to adjust the number of grams/packets based on my weight. For example the 1 gram packet treats up to a 10lb dog and a 2 gram packet treats up to a 20lb dog.
Hello Jamie,
When using Fenbendazole products like Panacur C or Safe-Guard, it is important to match the dosage to your weight rather than the weight of a dog, as the dosage calculators are typically based on human weight.
For instance, if the dosage calculator recommends 222 mg of Fenbendazole based on your weight:
1-gram packet of Panacur C typically contains 222 mg of Fenbendazole, which is intended for a 10-pound dog.
2-gram packet contains 444 mg, suitable for a 20-pound dog.
In your case, if the calculator suggests 222 mg, you would use one 1-gram packet. There’s no need to adjust the number of grams or packets based on the weight of a dog; you should follow the dosage recommendation calculated for your specific weight.
Make sure to read the product label to confirm the amount of Fenbendazole per packet, as formulations can vary.
Hello, my father has recently been diagnosed with stage IV stomach cancer and has just begun palliative chemo treatment which includes a chemo infusion every 3 weeks and tablets of capecitabine twice a day, every day, in-between infusions. He heard of fenbendazole and tried it for 4 days before he started chemo. He wants to carry on taking it maybe 4 days on, 3 days off but would need to take it alongside the capecitabine, as there isn’t any break from these tablets. (He will avoid for a few days either side of the infusion). He plans to take it as far away from the capecitabine tablets as possible, probably 4 hours apart. He will be monitoring liver enzymes every 3 weeks. Do you know of any interactions that make the combination a bad idea or is there anything else you can suggest to make the combination as safe as possible? Thanks, appreciate what you are doing here very much.
Dear Kathy,
Based on what you have described, it seems that your father can continue taking fenbendazole according to the schedule he is considering. It may be beneficial to add milk thistle and curcumin to his regimen, as these supplements are known for their supportive effects on liver health and inflammation.
However, it is important to note that there is limited information available regarding the interaction between fenbendazole and capecitabine. Both medications are metabolized in the liver, which could potentially increase the risk of liver-related issues. Therefore, it is crucial to closely monitor his general well-being and continue regular liver enzyme checks every three weeks, as you have planned.
By maintaining this level of caution and regularly assessing his liver function, you can help manage the potential risks associated with combining these treatments.
Hello, Brianna, thank you for a question.
Yes fenbendazole may be used together with other therapies. We recommend following our protocol and calculate your dose at our dosage calculator. Be sure to make pauses 2 days before your chemo or immunotherapie rounds. Resume fenbendazole treatment 2 days after your round. This is due to fenbendazole stopping proliferation of cancer cells, but chemo targeting fast proliferating cells (like hair, nails, skin, etc.) So if you want the best results and synergy, we suggest you make pauses.
Hello!
My relative has metastasis in the liver and lungs, two years after chemo and operation of rectal cancer.
Before five days, he started with Fenbendazole, Milk twistle, linseed oil, curcumin and Tutka.
Do you think that the supplements are appropriate with this treatment with Fenbedazole?
Also we think to add serapeptaza, berberine, multivitamins, melatonin and oxygenated water, but we are not sure these supplements can be combined with Fenbendazole and this type of cancer. What do you think?
Dear Dzheylya,
The supplements your relative is taking along with Fenbendazole are generally safe and compatible. Milk Thistle supports liver health, which is essential given the stress of cancer and Fenbendazole. Flaxseed oil and Curcumin have anti-inflammatory properties, while TUDCA protects the liver.
The additional supplements—Serrapeptase, Berberine, Multivitamins, and Melatonin—can also be combined with Fenbendazole. Regarding oxygenated water (hydrogen peroxide therapy), while we are still learning about its potential benefits, it is important to approach its use thoughtfully and consult with a healthcare provider.
Regular monitoring of liver enzymes and general health is very important, as some supplements can affect liver function.
Sorry if you’ve already addressed. I’ve read that Fenben is difficult to absorb and water doesn’t do the job. Article recommended using EVOO-extra virgin olive oil to break it down to a suspension type level. Also, read that butter could work. Tried to find more info on dissolution of Fen but no one mentioned whether HCL from your stomach worked. Seems odd they would miss that.
Could you please comment on this?
Using for prostate cancer probably my last resort before surgery. Been 5+ years since diagnosis. Used IVC, mistletoe, naltraxone, UBI and Hellaborus Niger plus numerous supplements. None actually shrunk tumors but do “believe” they and diet helped me get healthier during this time.
Thanks
Dear Bob,
Fenbendazole can be challenging to absorb. Therefore, it is recommended to take it with or after a fatty meal. Some sources suggest using coconut oil, hemp oil, olive oil, or butter to dissolve it, making it easier for your body to absorb. Fatty foods like avocado, nuts, or fatty fish can also be suitable. Stomach HCL might not be sufficient on its own, so a fat source like EVOO or butter is recommended because fenbendazole dissolves better in fats, enhancing its bioavailability.
Regarding your prostate cancer treatment, it sounds like you have explored various options. Adding fenbendazole with a fat source might be worthwhile, as it has shown benefits for many prostate cancer patients. It is important to choose the right schedule and dosage. We suggest using this dosage calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
I am inquiring about using Fenbendazole for a brain tumor. We are currently taking 400mg twice a day of Albendazole (total of 800mg/day) We just started this July 25th, but we would rather use the Fenbendazole given the success rate, studies, and personal success stories. We were thinking to start at 222mg twice a day (total of 444mg/day) and increase to double that amount if tolerated. (patient weighs 98lbs) Currently we are using high dose Boswellia, Liposomal Curcumin, Vitamin D3 K2 and THC tincture along with a few other supplements like Selenium, Oxoalaceatate, etc… Also we are on Dexamethasone of 4mg for four times per day. (total of 16mg/day) Any advice on the dosage for this situation. Thank you in advance!
Hello Jerry,
For a patient weighing 98 lbs, the recommended dose of fenbendazole would be 222 mg per day, taken in one dose. If the patient tolerates it well, you can consider doubling the dose, but make sure to take it with food. It is important to monitor liver enzymes and the patient’s overall condition closely.
Fenbendazole is actually more widely used than albendazole and might be a better option if available. All the supplements you’re using, such as boswellia, liposomal curcumin, vitamin D3 K2, and THC tincture, are beneficial, so continue with those.
However, be sure to administer fenbendazole separately from dexamethasone, spacing them out as much as possible to avoid interactions.
My husband has CLL – chronic lymphatic leukemia – for 20+ years – lymphnodes are increasing in size – doc wants oral chemo – husband doesn’t want to do chemo. Has feben shown to be effective for CLL? Thank you!
Hello and thank you for a question!
Fenbendazole can be effective for CLL. However chemo also may be helpful in conjunction with fenbendazole. Only one important point. If you decide to do chemo, make sure your husband pauses fenbendazole protocol for 2 days prior, during and after chemo round. This is because chemotherapy targets fast proliferating cells like skin, hair, nails and of course CANCER. Fenbendazole may slow down cancer proliferation and then chemo may not target cancer as good. So use both chemo and fenebdazole, but be sure these two do not intervene with each other. Best of luck to you!
how safe is fenbendazole for my husband who also has early COPD and Emphysema? Also, fairly frail at 75 and weighs 100 lbs. Recently diagnosed prostate cancer; a very fast growing and spreading one. Not doing chemo or radiation so looking for other safer natural options.
Dear Angel,
Fenbendazole is generally safe and well-tolerated, with rare side effects, making it a promising option for your husband. Given his frail condition and weight of 100 lbs, starting with a dose of 111mg per day for six days a week is advisable. If he feels well, you can consider increasing the dose to 222mg per day. It is important to monitor his liver enzymes, general blood tests, and overall well-being to ensure the treatment is working effectively and safely.
Dear admin,
Thank you for existing, I am sure that you and your kind advices and replies are just what most of us need in our challengning times. My mother has 4-stage pancreatic cancer. Tumor is pushing her nerves and tissue so she has terrible pain in abdomen and in her back. She is on multiple heavy medicaments/opiodes against the pain. 2 days ago I started giving her 250mg (half a 500mg pil) fenbendazole per day together with 600mg curcuma and 2 CBD-drops. Is that dosage sufficient? Should I give it to her 6 days per Week and 7-th day off? Should I combine even with vitamines A, B, C D, E and K? Any idea how long time can it take until we can expect some shrinkage of tumors-reducing her pain? Thank you in advance and God bless you!
Hello Ed,
Thank you for reaching out. Since we do not have your mother’s body weight, we cannot provide an exact dosage recommendation. It would be best to calculate the dosage using a fenbendazole dosage calculator, which can be found here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Your proposed usage schedule of 6 days on and 1 day off is appropriate. Additionally, it is beneficial to include milk thistle in the protocol to support liver function, as fenbendazole can affect liver enzymes.
Curcumin should ideally be taken twice daily at 600mg each time to maximize its therapeutic effects. Regarding CBD, without knowing the concentration of the drops, a general recommendation would be around 25mg at night for pain management.
Patients typically begin to notice initial results, such as tumor shrinkage and pain reduction, within 2-4 months. However, this timeframe varies widely depending on individual factors such as overall health, cancer stage, and response to treatment.
Including vitamins A, B, C, D, E, and K is generally beneficial for overall health. It is important to note that vitamin E acts as a blood thinner, so careful monitoring is advisable.
Lastly, please ensure to closely monitor your mother’s condition and regularly check her liver enzymes, especially given the medications and supplements she is taking.
Wishing you and your mother strength and progress on this journey.
Is it safe to use fenben to treat esophageal cancer that has metastasized to the liver? Any specific recommendations or things we should watch out for?
Hello,
Fenbendazole can be used safely when liver enzymes are within normal or mildly elevated ranges. It is generally well-tolerated and has demonstrated promising potential in cancer treatment. Incorporating supportive measures like milk thistle, known for its hepatoprotective properties, can be beneficial. It is crucial to regularly monitor overall health and liver function through liver enzyme tests, especially in managing liver metastases. This monitoring aids in evaluating liver function and determining any necessary adjustments to treatment plans.
Hello,
Diagnosed with GNET, a rare sarcoma that housed itself in my colon and has a high recurrence rate. It metastasised to my liver and I will be have Y90 treatment this week and at end of July. Just ordered Fenbendazole today. Thoughts on Fenbendazole and sarcoma?? Thank you, Kathy
Hello Kathy,
Fenbendazole has shown potential in cancer research due to its ability to disrupt cancer cell growth, similar to its action against parasites. While it is not yet a standard treatment for sarcomas or other cancers, some evidence and early studies suggest it might be beneficial.
Dear Jim,
Autoimmune diseases involve the immune system attacking the body’s own tissues, and medications used to treat them are generally immunosuppressive or immune-modulating drugs. Fenbendazole does not fall into these categories.
There is no documented evidence or established medical use of fenbendazole in treating autoimmune diseases like Dermatomyositis.
I was just wondering is it safe to use Fenbendazole and antibiotics at the same time, I was just prescribed a 7 day antibiotics regiment and I’m not sure if I should pause my Fenbendazole for that duration, anyway I guess the safe option is to stop Fenben for this period and than continue, but I would like to know in general, is there any information about some possible interactions between Fenben and antibiotics?
Hello Dejan,
Antibiotics and fenbendazole operate through different mechanisms.
Most antibiotics are generally known not to significantly interact with fenbendazole. However, some antibiotics, such as metronidazole, have been reported to potentially interact with fenbendazole, increasing the risk of neurotoxicity. Therefore, combining these medications should be approached cautiously, and any signs of neurological issues should be monitored closely.
Tetracyclines, like doxycycline, represent another group of antibiotics that may form insoluble complexes with certain medications, including fenbendazole and mebendazole. To avoid interference with absorption, it is typically recommended to administer mebendazole and fenbendazole separately, although specific interactions between these drugs are not extensively documented.
Liver enzymes, which often interact with antibiotics, generally do not significantly metabolize fenbendazole. Therefore, notable interactions with other antibiotics are unlikely. It is advised to discontinue fenbendazole use two days before starting antibiotics and for two days afterward if concerned about potential interactions.
My wife has had metastatic breast cancer for over 7 years and about a year ago her oral chemo pill (IBRANCE) stopped working. She did some chemo infusions and radiation and then her cancer went from HER+ to -. Another oral pill for her type of cancer was tried, but the side effects were too much so for the last few months she has had no treatments other than infusions for her bones. Could it be helpful to embark on a regiment of Fenbendazole for a woman 76 years old and 120 pounds?
Dear Greg,
When breast cancer has spread to other areas of the body, it is frequently treated with fenbendazole. It is thought to function by interfering with cancer cells’ ability to synthesize microtubules, which prevents cell proliferation and encourages cell death.
Fenbendazole can be a helpful addition to your wife’s treatment plan. It is crucial to remember that fenbendazole usually needs to be used for a long time, and it could take one to four months to start showing results. Results can vary depending on a number of factors, including the patient’s immune system, the degree of the cancer, and how each patient responds to treatment.
We advise starting with a lower dose and gradually increasing it while carefully monitoring your wife’s condition because of her medical history. Her response to the drug will be evaluated, as well as her tolerance to it, by routine blood tests and general health checks.
It is important that Fenbendazole not be given in conjunction with radiation or chemotherapy treatments. Stop fenbendazole at least two days before and after these procedures to reduce the possibility of interactions.
You might find these case reports useful for more reading: https://www.fenbendazole.org/triple-negative-breast-cancer/
Here is the case report for metastatic breast cancer: https://www.fenbendazole.org/case-report-metastatic-breast-cancer-83-female-2/
These sources offer extra information on the potential benefits of Fenbendazole in similar situations.
Hello,
We appreciate your interest in learning more about fenbendazole treatment for pinworms in pregnancy. Generally, because there is limited safety information for pregnant women, it is not recommended. During pregnancy, certain drugs, like fenbendazole, may provide risks to the growing fetus as well as the mother.
Hi my brother was diagnosed with a glioblastoma grade 4 cancerous tumour last week. It is inoperable and they have said he isn’t well enough for chemo or radiotherapy. He has lost mobility since his biopsy back in april and is struggling with dizziness and feeling sick on and off. He is on an anti sickness syringe driver 24/7 and is now in a hospice for care as he wasn’t well enough to come home from hospital. He has fought covid pneumonia in the past 2 weeks, so his chest is weak and he swallowed some food that went into his lung. He is coughing when swallowing so is on a soft diet. He tried some fenbendazole (panacur) 222mg on sat night and Sunday morning. He was then sick all Sunday afternoon but we think this a coincidence as his xray showed food had gone into his lung causing infection. I am desperate to try him on fenbendazole again but I am worried about nausea. They have given him a few months. His vision is affected and he mentioned his hearing is affected today. Any advice would be greatly appreciated. Thanks
Dear Laura,
We extend our heartfelt condolences to you and your family during this challenging time following your brother’s diagnosis.
Regarding the use of fenbendazole (Panacur) for glioblastoma, recent studies and reports have suggested potential benefits in treating brain cancer in humans. While its effectiveness specifically for glioblastoma has not been firmly established in rigorous clinical trials, ongoing research is exploring its mechanisms and potential applications across various cancer types, including brain tumors.
Given your brother’s serious medical condition, we recommend starting with a lower dose of fenbendazole and gradually increasing it to help manage potential side effects, such as nausea, which is particularly important given his current health challenges.
If swallowing is difficult, administering fenbendazole in powder or liquid form mixed with your brother’s favorite foods may facilitate easier consumption. Alternatively, if his healthcare team opts for a feeding tube, this can simplify the administration of fenbendazole directly into the stomach.
We would also like to highlight that fenbendazole is known for its long-acting properties. As a result, the time frame for observing noticeable results can vary significantly, typically ranging from 1 to 4 months. This duration is dependent on several factors, including the patient’s overall condition, the progression of the disease, and the individual’s response to the treatment. Patience and consistent monitoring are essential during this period to evaluate the effectiveness and adjust the treatment as necessary.
In addition to fenbendazole, complementary therapies like CBD, turmeric, and milk thistle have been studied for their potential supportive roles in cancer treatment and maintaining liver health.
Please do not hesitate to reach out if you have any further questions or need additional assistance. We are here to support you and your family during this difficult time.
Ok so I was diagnosed on Dec 4 with prostate cancer from 1 biopsy sample out of 19 PSA 12.5 from 3 months prior to the biopsy, Gleason 3+4=7. I have consulted on options of surgery and radiation. April 24 I started 3 days on 4 off of 222 MCG of Safeguard Fenbendazole. On May 14 I decided to switch to 6 days on 1 off. Last Thursday 5/30 i had a blood draw to check liver, kidney and PSA and Free PSA. Liver and kidney came back good. I just received the PSA/Free PSA and was surprised the total PSA is 17.3. I did not get a PSA prior to starting the treatment, so I guess I may need to wait some to retest the PSA for true positive results. Looking for some guidance. I have spoken with a person that had a 33 PSA and more positive samples that reduced their PSA to .2 but took about 3 months. Thanks for any info.
Dear David,
An increase in your PSA from 12.5 to 17.3 could mean several things. One possibility is that the treatment duration is still too short to achieve optimal results. Additionally, the schedule and dosage are crucial for treatment effectiveness. A 6-day-a-week schedule is recommended, and if your weight is under 90kg, a dose of 222mg of Fenbendazole is appropriate.
Response to treatment varies between individuals, and some may take longer to see effects. Other factors like infections, inflammation, or medical conditions can also elevate PSA levels. We suggest continuing the treatment on a 6-day-on, 1-day-off schedule and considering the supplements we offer, which can support your health and treatment efficacy. For a list of supplements, visit: https://www.fenbendazole.org/fenbendazole-information/supplements/
Repeat the PSA test after a few months to assess if the treatment is effective. Monitor your overall well-being and have regular general blood tests. Changes in lifestyle and diet are also crucial. Focus on a balanced diet, regular gentle exercise, stress management, and maintaining a healthy weight to support healing and improve overall well-being.
Thank you. I weigh 148 lbs. I had a bone scan and pelvic scan a few months back and all indications the cancer is contained to the one spot in the prostate. Hoping to avoid surgery or radiation and the side effects those pose.
We genuinely hope for your full recovery and success in overcoming cancer. We are confident that incorporating Fenbendazole into your treatment regimen will be beneficial.
Based on your weight, a dosage of 222mg of Fenbendazole is appropriate and has been correctly selected. Should you have any additional questions or require further assistance, please do not hesitate to reach out to us. We are committed to supporting you throughout your treatment journey and will endeavor to provide any help you need.
Thanks again for this valuable resource of information on Fenbendazole for possible cancer treatments. I am taking Fenbendazole now, I have an upcoming dental implant procedure, which I assume antibiotics might be prescribed to limit risk of infection ……. should I stop Fenbendazole? or continue taking daily as usual? are certain antibiotics to be avoided if taking Fenbendazole? …… Thanks
Dear Jeff,
Fenbendazole is generally regarded as safe and well-tolerated, with interactions with antibiotics being unlikely. There are no widely documented specific antibiotics that must be strictly avoided while using Fenbendazole. However, potential interactions can vary based on individual medical conditions and other medications being taken. Therefore, we advise you to monitor for any unusual side effects or symptoms when using Fenbendazole with antibiotics. If you notice any changes, consider pausing Fenbendazole until you have completed the antibiotic course.
My diagnosis is DCIS and I am told I need a mastectomy by end of July 2024. I started 222mg powder Fenben May 6 2024. As of May 22, 2024 switched to Liquid for goats at 2.5 ml per day. More economical. Is this ok? I am also using 630 mg Curcumin and 1000 mg Milk Thistle. Have you heard of any DCIS Breast Cancer cases regressing from this protocol? I am having PET scan done before mastectomy to see if breast lights up. Can you tell me if this scan will show ductal carcinoma insitu? If nothing lights up I am hoping it is due to the fenben protocol. Thanks so much for having this med out there for animals and now people. Please advise.
Dear Gaye,
To answer your first question, yes, you have chosen the right solution, and using 2.5 ml of liquid for goats is appropriate. This dosage is equivalent to 250 mg of Fenbendazole.
Adding Curcumin and Milk Thistle to your regimen is a very good decision. These supplements will help support your body and liver health.
Regarding the effectiveness of Fenbendazole in treating DCIS, preclinical studies have demonstrated its anticancer properties, such as inhibiting cell division, disrupting glucose metabolism, and potentially modulating the immune system. However, these studies primarily focus on invasive and metastatic cancers rather than non-invasive conditions like DCIS. Therefore, it is challenging to predict how Fenbendazole will work specifically for DCIS, as its effects on this condition have not been extensively studied. The effectiveness of the treatment also depends on various factors, including your overall well-being, immunity, and how your body responds to the treatment.
In response to your question about PET scans, while PET is a powerful imaging tool in oncology for detecting cancer and assessing its spread, it has limitations in detecting ductal carcinoma in situ (DCIS). Due to the lower metabolic activity and smaller size of DCIS, a PET scan is usually not the best choice for detection. Mammography remains the gold standard for screening and diagnosing DCIS, often supplemented by MRI or ultrasound as needed.
We sincerely hope that this protocol will be effective and your cancer will be eliminated. If you have any further questions, we will be happy to assist you.
Is it safe for me to double the 2.5ml once a day of liquid to twice a day? Just want all I can take safely before PET scan. I understand what you said about an MRI being a better tool to see the DCIS contained cancer, however the insurance will not cover another one this close to the last as they are going on the assumption that nothing will have gotten better before surgery date. I did not tell them I was self treating. That being said my only option was the PET. Can I assume that if the PET does not light up any cancer in breast the DCIS is still contained in the duct? If I continue this protocol and the cell division is disrupted by the Fenben I see no need to have mastectomy. Would you agree with my logic? Can this protocol be continued indefinitely without any side effects?
Dear Gaye,
It is important to be cautious when adjusting the dose of liquid fenbendazole. If you weigh 90 kg or less, your daily dose of fenbendazole should be 222 mg. Doubling the dose from 2.5 ml to twice a day significantly increases the amount and may cause side effects or toxicity. The current daily dose of 2.5 ml is generally safe and should be taken once a day with or after a meal.
If the PET scan shows no cancer activity, this may indicate there are no highly active cancer cells, but it does not mean DCIS is completely arrested or regressed, as DCIS might not appear on the PET scan.
While the fenbendazole protocol is promising, medical decisions should be based on comprehensive clinical evidence and imaging findings. If no cancer is detected on the PET scan, further consultation with your oncologist is necessary. They may suggest additional imaging or biopsies for a clearer picture.
Regarding long-term use, many patients use fenbendazole for years without side effects if used correctly. However, regular monitoring through blood tests and well-being checks is recommended to ensure there are no adverse effects.
Your desire to avoid a mastectomy is understandable, but decisions should be made based on thorough medical evaluations and discussions with your healthcare team. We cannot assist in making this decision.
It’s my mother. He is a terminally ill stage 4 pancreatic cancer patient who has less than a month to live. He has metastasized to multiple sites including the liver, and is also suffering from peritoneal dissemination.
Can I give fenbedanzole to a terminally ill pancreatic cancer patient who is vomiting and unable to eat or drink?
I am not giving up at all!
I would be grateful if you could give me some advice.
Hello, we are truly sorry to hear about your mother’s condition.
Unfortunately, when a patient is critically ill and unable to consume food or fluids, administering oral medications like Fenbendazole can be quite challenging. Given her current state, it’s also uncertain whether Fenbendazole would provide any benefit, as it is not a medication that yields immediate effects. Typically, Fenbendazole should be used for 1 to 4 months to evaluate whether it is effective for an individual’s specific situation.
However, if your mother is able to take Fenbendazole orally without adverse effects, it is crucial to monitor her response closely. Regular blood tests are important to ensure that the treatment is having a positive impact on her health.
Hi, I currently take a statin (Atorvastatin) and I was wondering if it is okay to take the preventative protocol as listed? I understand that statins work primarily in the liver so I thought it would be best to check.
Thanks,
Toby
Dear Toby,
There is no specific evidence to suggest a dangerous interaction between atorvastatin and fenbendazole. However, this combination should be approached with caution. Since all drugs can have side effects and interactions between atorvastatin and fenbendazole are not well-studied, we recommend that you constantly monitor your general well-being and have regular blood tests.
Dear Jeff,
Fenbendazole is generally regarded as safe and well-tolerated. It often shows compatibility with a wide range of medications, supplements, and standard cancer treatments such as chemotherapy, immunotherapy, and radiotherapy.
However, there is no established scientific evidence regarding its use in combination with Methylene Blue, and their potential interactions are also unknown.
Therefore, we recommend proceeding with caution if you decide to combine these two drugs. It is advisable to start with a lower dose than typically recommended. If the patient tolerates the treatment well, you may gradually increase the dosage to the levels outlined in the protocol.
Additionally, it is important to closely monitor the patient’s overall health and conduct regular blood tests to ensure the treatment progresses safely and effectively.
Dear Susannah,
Thank you for your question.
Fenbendazole is generally considered safe and well-tolerated. However, it can interact with other medications, and not all potential interactions are known. Unfortunately, we couldn’t find specific data regarding interactions between Trastuzumab or CAR-T cell therapy and Fenbendazole.
Both Trastuzumab and CAR-T cell therapy are not classified as chemotherapy, which suggests that they should not cause any adverse interactions with Fenbendazole. Nonetheless, we recommend that you have monthly blood tests and closely monitor your overall health.
Hello, I am diagnosed with the Uterus cancer, I am 64 of age.
Is there a protocol on your site for FENBENDAZOLE+IVERMECTIN?
I checked but I didn’t find it.
Thanks.
Hello Marina, We are a Fenbendazole information page. We are sorry, but you will not find information about the interaction of Ivermectin and Febendazole on our page.
8 years ago, I was diagnosed with prostate cancer. Gleason 6. I’ve had 4 biopsies since, the last one being two years ago. Still the same; 3 out of 15 showing 3+3 and my last psa was 1.9, before that it was 1.3. I was taking 222 mg 3 days per week, but recently switched to 444mg 3 days per week. What would be the proper protocol?
Hello John,
When determining the correct dosage and frequency of Fenbendazole for your body weight, please use our provided dose calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Also, do not forget to take supplements from the protocol, such as milk thistle, Curcumin, Vit D and others.
Should you wish to increase either the dose or frequency, be careful not to surpass the maximum daily limit of 444mg. Moreover, if you are adjusting how often you take the medication or decreasing the break periods between doses, it is important to conduct regular blood tests, check your liver enzymes, and monitor your general health.
Hello! I have stage 4 gallbladder cancer and currently take 4.5ml – 444mg of Panacur 10 liquid. I was considering switching to FenBen Lab, but I’ve read concerns about its purity not being as high as advertised. Is the liquid form I’m using okay, and should I be concerned about switching? Thanks in advance for your advice.
Hello, Michael. Thank you for your question!
As a product of Merck that is regulated by the FDA and EMA (European Medicines Agency), Panacur is undoubtedly safe product. As an independent organization, Fenben Lab is not subject to regulation by the aforementioned institutions. However, they are not subject to their regulation, because they market it as a chemical substance – not a veterinary use product. Both appear to be reputable organizations with years of experience and positive reviews, as far as we are aware.
Concerns regarding purity originated from a rival brand that conducted illegitimate independent testing; thus, this may be considered attack marketing, a practice that is occasionally regarded as unethical in the business world.
My 47 y/o husband is currently inpatient at a hospital. He is not eating and drinking a lot. He is hooked up to fluids via iv. Is this enough hydration for me to be giving him 222mg fenben? He has stage IV melanoma. He is currently being treated with chemo pills 5 days every 28 days. I waited 2 days to start the fenben after the last chemo dose.
Hello, Star. Thank you for a question.
Yes, fluids administered via IV should be enough. It is really great, that you decided to make a short pause after Chemo. 222mg is a relatively safe dose and should not cause any adverse effects.
Hello, Tony, thank you for a question.
That is not correct. According to your dogs weight (30 pounds = 13 kilograms), he/she should take 222mg once a day for four days in a row. Then, for the next three days, do not give your pet fenbendazole. Repeat this cycle every week. Also consider supplements for your dogs liver health and check liver enzymes.
I have a few additional questions to add from my previous post. The video from Dr. Rogers at this site recommends 444mg of the Fenben if you are fighting cancer and 222mg for preventative whereas the protocol showing only 222mg based on my weight and with cancer. Also, he stated the Fenben and Artemisinn ok to take in addition to chemo but did not mention anything about stopping the Fenben protocol right before and after each session. Thank you
Hello, Kimberly.
444 mg is an acceptable dose in the majority of situations. Nevertheless, the video missed to provide any information regarding the patient’s weight. Should you observe no adverse effects while taking 222 mg, you are free to increase the dosage if you so choose. However, be sure to monitor your liver enzymes and consider the possibility of liver toxicity. While a dose of 444 mg is generally well tolerated, we advise you to at least begin with a dose that is correlated to your weight, which in your case is 222 mg.
In response to your second question, you may pause during your chemotherapy round in order to maximize its benefits. Fenben does not cause harm when taken in conjunction with conventional treatment; however, it does diminish the efficacy of conventional treatment slightly.
I will be seeing my Oncologist on the 23rd of this month to discuss chemo treatment for the first time. I believe I will be starting chemo in about a week after my appointment. I do not know how many days a week I will be getting treatment but I saw one of your replies not to take the Fenbendazole few days prior and a day or two after chemo. Sounds like I should wait to speak with Oncologist first to see how many times a week I will be getting chemo if that is the case but I was hoping to start the protocol asap. Would you recommend to wait or just to go ahead and start? Thank You
Hello, Kimberly, thank you for a question.
We believe that the most effective course of action is to wait for a doctor’s appointment before developing a protocol for fenbendazole treatment, once you are certain of your chemotherapy regimen. The duration of the “rest phase” of a treatment cycle, which is the interval between chemotherapy cycles, is subject to variation contingent upon the particular chemotherapy regimen that is prescribed. This period can typically span from a few days to several weeks. It generally operates as follows:
Weekly Cycles: Chemotherapy may be administered to patients on a weekly basis, with the remaining week designated for recuperation prior to the subsequent dose.
Three-week cycles involve the administration of chemotherapy to a patient on the initial and possibly eighth day, after which the patient undergoes a period of recuperation until the subsequent cycle commences approximately two weeks later. This enables the body to recuperate and generate fresh, healthy cells.
Four-week cycles involve the administration of chemotherapy for a consecutive few days during the initial few days, followed by a recovery period of approximately three to four weeks during which no chemotherapy is administered.
Hello, my wife has stage 4 cancer, a course of chemotherapy is prescribed every 3 weeks.
according to the calculator it is 222mg.
1. Can she use fenbendazole during chemotherapy?
2. When is the best time to use it?
Hello and thank you for a great question!
Fenbendazole should be administered between chemotherapy cycles. Before chemotherapy, your wife may discontinue a protocol for at least two days, and she may resume use two days after treatment. This is due to the fact that chemotherapy primarily targets cells that proliferate rapidly, such as cancer, skin, hair, and nails. On the other hand, because fenbendazole inhibits the multiplication of cancer cells, chemotherapy may be a little less successful against them; however, optimal outcomes are desired from both therapies.
Thank you for all your time and effort helping everyone. I’ve got 444mg capsules. To accurately cut the dose in half could I open the cap and mix it in 2 oz of a beverage then split it into 1 oz shots, taking 1 per day? And if so, what would be the best type of beverage?
Hello, Mark! Thank you for a question
Yes, you may divide the dose this way. You may add it to yogurt, juice, smoothies, or even water. Please bear in mind that fenbendazole does not dissolve in water. So, you may add a few drops of a fatty substance, such as olive oil.
Dear Deedee,
Fenbendazole has proven effective in treating lymphoma in dogs, with numerous success stories reported. To determine the appropriate dosage and frequency for administering Fenbendazole, we recommend using our dosage calculator available at: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
my husband is a 1.5 year survivor of GBM frontal methalated tumor, post chemo/rad with surg. of 98% reduction.
It is coming back agressivley.
It is ok to take fenbendazole (7 days on) and Artemisnin together?
with the milk thisle, curcumin, cbd oil, bedadine, quercetin and frankincense as well?
Hello, Dolly. Thank you for a question!
We suggest making pauses. Please visit our Dosage Guide section to calculate dosage you may need. Pauses are important for your liver to restore. Fenbendazole half life may be up to 20+ hours in a human body, so you may need pauses to make time for your liver to deal with the load. If you use fenbendazole all week straight, fenbendazole may accumulate and cause liver stress.
I ordered Fenbendazole 3 gm Pill, Panacur Brand 1st Quality. I received Boli or Bolus (used for large animals) which I wasn’t expecting. Additional ingredients are Excipients-q.s. (?) and Colour-Tartrazine. These large pills are easy to break down and are tasteless. Is this okay to use for men and women at the appropriate dosage? Thank you for answering so many questions!
Hello, Cheryl and thank you for asking.
“Excipients-q.s” stands for “quantum satis,” a Latin term meaning “as much as is needed.” In pharmaceutical formulations, it indicates that the amount of excipients (inactive ingredients) used should be adjusted to achieve the desired volume or consistency of the final product. Essentially, it implies that the quantity of excipients should be sufficient to fulfill the intended purpose of the formulation, such as providing stability, improving solubility, or aiding in the manufacturing process.
“Colour-Tartrazine” refers to the food additive Tartrazine, also known as E102 or FD&C Yellow No. 5. It is a synthetic lemon yellow dye used in various food and beverage products to impart a yellow or greenish-yellow color. Tartrazine is commonly found in items such as candies, soft drinks, snacks, cereals, and desserts. However, it’s worth noting that some individuals may be sensitive to Tartrazine, and it has been associated with allergic reactions and intolerance in some people. Therefore, products containing Tartrazine are often labeled to alert consumers who may wish to avoid it.
I don’t have cancer, I just started today for cancer prevention, do I take 1 222mg fenben 3 on 4 off for 10 weeks also add 600mg curcumin and vitamin E. Do I need to take milk thistle daily or no.
Hello, William.
Milk thistle is recommended. Milk thistle, scientifically known as Silybum marianum, contains an active compound called silymarin, responsible for its liver-protective effects. Silymarin has antioxidant, anti-inflammatory, and hepatoprotective properties.
I had been taking a parp inhibitor for 6 months, but it was not working. My numbers had gone back up to CA148, so I decided to start taking the fenbendazole. I have been on it for 8 weeks. At 4 weeks my numbers were at 108, then at 8 weeks they were at 44. I have been following the protocol of 3 days on and 4 days off. I understand that I am to take up to 10 weeks. My labwork will be at 12 weeks. So I then woud be totally off for 10 weeks. I’m wanting to make sure my markers are below 35. Can I stay on week 11 and week 12 to make sure they come down before I take the 10 week break? And once my numbers are down how often in the year do I repeat the 10 weeks protocol?
Hello, Eva, thank you for a question!
Congratulations on your positive results; we sincerely hope tests will be the best possible. Furthermore, it is recommended that you continue to the protocol for an additional few weeks only if your liver exhibits favorable tolerance to fenbendazole, you do not experience any adverse effects, and your liver enzyme blood tests remain within the normal range. If all is well, then the duration of the protocol may be extended. Once your numbers are down, you can repeat the protocol every 4-6 months (2-3 times in a year)
Hi, My Mum has just been diagnosed with breast cancer, would fenbendazole be ok to use when she is on high blood pressure tablets and cholesterol tablets and she also as osteoporosis and has injection for the osteoporosis. Thank you, Naree
Hello, Fil and thank you a question.
While fenbendazole is generally considered safe and well-tolerated, interactions with other medications can occur and are not always known, so you might want to consult with a health care professional. We could not find any data about benzimidazoles interaction with corticosteroids. Chances that two drugs will create negative synergy are slim, but we can not advise you to mix it without knowing the outcomes.
Hello, Paul, thank you for a question.
It’s essential to follow the recommended dosage guidelines and avoid exceeding the maximum daily dose without consulting a healthcare professional. If you’re taking 1300 milligrams per day of Tylenol, you should be cautious and monitor for any signs of liver problems, such as abdominal pain, nausea, vomiting, jaundice, or changes in liver enzyme levels through blood tests. When combining fenbendazole and Tylenol, it is imperative that you exercise additional caution and remember to take milk thistle for the benefit of your liver. In contrast, fenbendazole does not exhibit any additional recognized adverse effects.
I am experiencing late stage four prostate cancer with mets to my liver, bones, & lymph nodes. I’ve been on the protocol for over 3 months with no apparent benefit.
Do you know of any cases, in which an increase or addition has demonstrated an improved result?
Conversely, it will also be very helpful to know if you know of those for which, for some reason or another, this protocol did not work. I have been wondering if the Lupron may be impeding progress. As you can imagine, any feedback will be greatly appreciated. Thank you for your service. Sam
Hello, Sam! Thank you for a question!
We do know cases when fenbendazole really helped in similar cases. Unfortunately, there are instances in which it failed to produce the desired results.
There may be lots of factors that can influence treatment effectiveness:
Genetic Factors: Genetic mutations and alterations in cancer cells can affect their sensitivity to fenbendazole and other treatments. Variations in drug metabolism, drug transporters, and drug targets can influence how cancer cells respond to fenbendazole therapy.
Treatment Resistance: Cancer cells can develop resistance to fenbendazole and other therapies through various mechanisms, such as mutations in drug targets, activation of alternative survival pathways, and changes in the tumor microenvironment. Over time, cancer cells may become less responsive to fenbendazole treatment, leading to treatment failure.
Individual Differences: Each person’s response to fenbendazole therapy can vary based on factors such as overall health, immune function, lifestyle factors, and concurrent medications. Additionally, the presence of comorbidities or other underlying health conditions may affect treatment outcomes.
Hi, fortunately until today I have not been diagnosed with any type of cancer, can I take fenbendazole as a precaution?? If yes, how should I take it?? Thank you
Hello Maria,
Yes, it is possible to use fenbendazole prophylactically. You can use the dose calculator to determine the appropriate dose and schedule for your needs. This tool will help you understand the right amount and frequency to take fenbendazole safely and effectively.
You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello, Pam! Thank you for the question.
One gram of Panacur has 22% of fenbendazole. It means that in one packet you get 222mg of pure fenbendazole. It is not a loading dose – it is maintenance dosage with Panacur.
Do you mind if I quote a few of your articles as long as I provide
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Hello and thank you for kind words!
As long as you provide credit and sources back to our webpage, feel free to share this information with the public!
I have stage IIIb high grade ovarian cancer that has spread to surfaces of my liver, bowel, bladder, spleen, and several other surfaces within peritoneum. I am in the middle of chemo, and had a CT scan last week showing progression, especially around the surface of my liver. I am starting my fourth round of chemo tomorrow, and I just started taking daily 222mg fenben over the past four days, and will take a break two days before and after chemo.
Question 1: is it okay to take fenbendazole while fasting?
My liver enzymes were slightly elevated before chemo, and have been trending down. I will get new liver test results tomorrow, which may show effects of four days of fenben.
Question 2: how frequently should I have liver enzymes tested?
Dear Susannah, thank you for your question.
We would like to begin by stating that fasting is already a tremendous physical strain and that we do not recommend it. Fenbendazole is reabsorbable into the bloodstream through the digestive tract. Thus, fasting inhibits metabolism, reduces the efficacy of fenbendazole, and places a tremendous strain on the liver.
Additionally, we advise discontinuing fenbendazole a few days prior to, during, and subsequent to chemotherapy.
In response to your second question, perform an enzyme test every two months at minimum. The more frequent- the better.
Greetings, Sue! Your question is greatly appreciated. Greetings!
It is recommended, according to the most reliable practices, to discontinue fenbendazole at least two days prior to your chemotherapy session and to resume it no sooner than a few days after your discharge from the hospital. Chemotherapy primarily targets rapidly proliferating cells within the body, including those associated with cancer, hair, nails, skin, and more. The administration of fenbendazole results in the inhibition of cancer proliferation and a reduction in the efficacy of subsequent chemotherapy. Although fenbendazole works well in conjunction with chemotherapy, be sure to discontinue use as directed.
Hello, Peggy, thank you for a question!
Essential thrombocythemia (ET) is not a type of cancer. It is a chronic blood disorder. While ET shares some similarities with cancers, such as abnormal cell growth and proliferation, it is classified as a myeloproliferative neoplasm (MPN) rather than a cancer. As of our most recent knowledge, there is little scientific evidence to support the use of fenbendazole for essential thrombocythemia.
HI: I’m researching Fenben for parasites (for myself). I was born with only my left kidney, so I am cautious about medications that I take. I would like to know if there has been any reported damage to human kidneys – from the research that I’ve done so far, I have not seen any. Thank you.
Hello, Kyle! Thank you for a question.
As of our knowledge, there have been no reported cases of kidney damage specifically attributed to fenbendazole use in humans.
Since you have a unique medical history with only one kidney, it’s important to exercise caution before starting any new medication, including fenbendazole. If you experience any unusual symptoms or changes in kidney function while taking fenbendazole, such as changes in urination, swelling, or discomfort in the kidney area, it’s important to seek medical attention promptly.
So my wife and i have been taking fenben as a prophylactic following the dosages the past several months. No ill effects from it at all, experiencing good health overall.
We recently found out she is 5weeks pregnant, what is your *purely educational* opinion on keeping my wife treated for parasites during pregnancy?
Hi, Oskar, thank you for your question!
If you’re thinking about keeping up with Fenbendazole while pregnant, the best step is to chat with a doctor first since there’s no clear info on its safety during pregnancy in the documents I have. Also, keeping an eye on liver health might be a good idea, and maybe even taking it a bit easier with the dosing schedule could be wise. Just to play it safe for both mom and the little one on the way.
I’ve been fighting ovarian cancer for 5 years. There is no sign of cancer in my abdomen but has now moved to spots on my liver, diaphragm and a lymph node. I started on a regimen of ivermectin along with my chemotherapy. My latest scan shows most spots have gotten smaller. I would also like to supplement with fenbendazole. Do you think I should stop the ivermectin and only do fenbendazole? Maybe alternate? or is it safe to take both together?
Dear Becky, thank you for the question! We think that fenbendazole is enough. Ivermectin is not as predictable on your organism and the dosage is unclear. You should be just fine with fenbendazole alone, given it has less side effects and it is more easy to avoid them. Stay strong and God bless!
Hello i am taking Fenbendazole for the cancer protocol and am experiencing a grey colored stool for the past 2 days. Is this sometime i should be worried about? Thank you
Dear Suzanne, thank you for your question! Fenbendazole does not change color of your feces. You should go to a medic care professionals to evaluate your health, because grey feces may indicate some other condition, but it is not related to fenbendazole.
Hello Sherry, thank you for a question. However, It’s essential to follow the recommended dosage and administration guidelines when using fenbendazole. We have not found information about fenbendazole causing bacterial infection and never had people commenting of getting infection related to fenbendazole use. Theoretically there could be some rare cases, where it may potentially disrupt the balance of bacteria in the gastrointestinal tract, leading to an overgrowth of bacteria or opportunistic infections. But such cases could happen only if a person does not use the instructions and uses fenbendazole inadequately.
Hello Stevan and thank you for this question.
Based on toxicology studies, benzimidazoles such as Fenbendazole, Mebendazole or Albendazole seem to be safe drugs.
However, a drug without any side-effects does not exist. Scientific data reports do not reveal significant adverse reactions from taking fenbendazole. Despite the fact, there are anecdotal reports of potential toxicity:
Up to 5 % of people can experience stomach discomfort or diarrhea when taking large quantities of fenbendazole with no breaks.
People with severe liver or kidney failure have lower medication excretion rates, therefore, fenbendazole can accumulate and cause unexpected side-effects. Doses should be divided accordingly in this situation.
When used in large quantities for a long period of time without breaks, fenbendazole can cause an asymptomatic liver enzyme increase due to the fact of the substance being mainly metabolized in the liver. This is reversible with the help of a couple week pause from the medication.
Good morning. I received 444 mg of fenbendazole, but I’m supposed to take 222 mg. My question is, is it possible to take half the pill? Best regards and thank you very much, Mabel.
Hello Mabel,
Yes, you can take half of the 444 mg capsule to reach the intended 222 mg dose. The best way to ensure accuracy is by using a small digital scale to weigh the powder—these are inexpensive and widely available online. Simply open the capsule, weigh out half (about 222 mg), and mix it with food for better absorption. Store the rest in a sealed container in a cool, dry place. Wishing you all the best.
Hello Amy, thank you the question. While some research suggests that fenbendazole may have potential neuroprotective properties in preclinical models, its efficacy and safety for treating neurodegenerative diseases in humans have not been established.
Hey, Rob, thank you for your question.
There is no major difference because THC is not essential. It doesn’t make much difference which spectrum you use. THC only enhances appetite if the patient does not have any. CBD just helps you sleep better and relax down.
Dear Dee,
Thank you for a comment! Peacocks can be sensitive to medications, and the dosage may vary based on factors such as the weight of the bird, the type of parasites being targeted, and the severity of the infestation. Additionally, the concentration of fenbendazole in water can vary depending on the formulation of the medication.
It’s essential to consult with a veterinarian who has experience with avian medicine to determine the correct dosage and administration method for treating parasites in peacocks.
Is there a protocol to use fenbendazole for cancer prevention in dogs who have thus far been cancer free age 2 years old and 3 years old. I have lost two dogs to cancer – so would like to do anything I can to avoid it. Please advise.
Hi there, and thanks for your fantastic comment! Our protocol can be utilized for prevention purposes. You can locate it in the “Fenbendazole Information” section under “Fenbendazole Dosage Guide.” Just scroll down a bit and you’ll find the “Preventing Cancer Relapse – Prophylactic Protocol.” Also, don’t forget about our dosage calculator, which you can use based on weight. We trust this information will come in handy.
Hello,
How long does FB last …I’d love to get some now before it is somehow banned, but does it lose potency over time? How long until it expires?
Thank you!
Fenbendazole, like many medications, can degrade over time and may lose potency if not stored properly. The shelf life of fenbendazole can vary depending on factors such as the formulation (e.g., tablets, paste, suspension) and storage conditions.
In general, fenbendazole products typically have expiration dates printed on the packaging or label. It’s important to check the expiration date before using fenbendazole and to discard any expired medication.
Overall, fenbendazole is a long lasting drug and should be okay to use for years if stored properly.
To help maintain potency and stability, fenbendazole should be stored according to the manufacturer’s instructions, typically in a cool, dry place away from direct sunlight and moisture. Avoid exposing fenbendazole to extreme temperatures or environmental conditions that could accelerate degradation.
If you’re unsure about the potency or expiration of fenbendazole, it’s best to consult with the manufacturer or pharmacist for specific guidance.
Hello
My mother is taking fenben 2 capsules daily 440 mg with no rest day .they stopped the chemeo cause she didn’t well tolerated it.now they are going to give her kisqali 200 mg each day can she still taking fenben with? Or it will interfere with it ? Please If anyone can help my mom has mastitis cancer and wounds all over her breast no
Hello Julia,
Fenbendazole is generally regarded as safe and well-tolerated.
We are not aware of any documented interactions with Ribociclib (Kisqali), but be aware that drug interactions can occur, and not all potential interactions are well documented. It is important to remember that all medications can have side effects.
For this reason, we recommend that your mother regularly monitor her health and conduct routine blood tests to ensure everything remains in balance.
We also suggest using our dose calculator. We recommend not to exceed a dose of 444mg per day. Please rely on our calculator, it is calibrated in such a way as to achieve the maximum benefit of the treatment and to cause as little harm to the patient’s body as possible.
You can access the dose calculator by clicking on this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Can this drug help with the person has symptom of Parkinson? I read most of the comments and it seemed like they all have cancers not once case has Parkinson. Please let me know. Thanks.
Hello Tanya, thank you for this interesting question.
There is limited scientific evidence to support the use of fenbendazole for treating symptoms of Parkinson’s disease.
We have the liquid Safe Guard. We would like to know the calculations for the liquid form of Safe Guard vs. the pills for humans. For both parasites and cancer. Thank you in advance.
My 15 year old cat has squamous cell carcinoma and I have treated her with the fenbenazole for 2 months with great success! Her liver enzymes are scheduled to be tested. What is the maintenance dose after all carcinoma is gone? Any other blood work necessary and how often?
Dear Joan, thank you for a question!
Dose for maintenance can be reduced by 25% and also you can make a bigger pauses in her regiment.
In addition to monitoring liver enzymes, your veterinarian may recommend regular blood work to assess your cat’s overall health and monitor for any potential side effects or changes in blood values. The frequency of blood tests may vary depending on your cat’s individual health status and response to treatment.
Hello, I have a 100lb. dog that had a mast cell tumor removed successfully. I would like to give him a maintenance dose of fenbendazole to prevent any future tumors/cancer, since I’ve read that this type of tumor reoccurs at a higher than average rate. Can you recommend the dose and frequency that he should be on?
Greetings, Jen, Your question is appreciated.
A calculator is applicable not only to humans but also to animals. Write weight after selecting “Protocol for” (Animal), “Species” (Dog). In the case of inactive cancer (remission), an additional day per week may pass without fenbendazole treatment, and the dosage may be decreased by 20-25%.
2 ?’s, first does fendbend have an expiration date? And is it 100% effective?…meaning that the majority of people that have been diagnosed with cancer survive? tricky question I know…but do your best. Thank you 🙂
Hello, Mary. Thank you for a comment.
You should definitely follow the advice of your physician. Traditional treatments, including radiation, primarily target rapidly dividing cells. Since fenbendazole inhibits the proliferation of cancer cells, radiation therapy may be less effective. Fenbendazole use may be discontinued two days prior to and two days following a radiation session. You may then proceed with your fenbendazole regimen.
Hello, Mary! Thank you for this question.
We advise pausing fenbendazole approximately two days prior to radiation therapy and resuming it a few days afterward for optimal efficacy and minimal physiological strain. Additionally, do not overlook blood tests for the purpose of monitoring liver enzymes. Test at least every four to five months.
Hello, Tyler. Thank you for a question.
Fenbendazole is efficacious and relatively safe when combined with chemotherapy.
Nevertheless, there are a few matters that require our attention. Traditional therapies such as radiation, chemotherapy, and others primarily target rapidly dividing cells. Fenbendazole inhibits the multiplication of cancer cells, which may reduce the efficacy of chemotherapy. Fenbendazole use may be discontinued two days prior to and two days following a radiation session. You may then proceed with your fenbendazole regimen.
Hello and thank you for this question.
The qualities of every benzimidazole are quite comparable. Albendazole, mebendazole, and fenbendazole are the most well-known, but fenbendazole has been the subject of more research regarding its use in cancer cases. However, considering albendazole’s properties, it ought to function as well.
Hello Mashumichelle, thank you for this interesting question!
The term “too much” is subjective, as the effectiveness of fenbendazole varies considerably between individuals. First, the half-life of fenbendazole varies between 2 and 24 hours. Furthermore, hepatic copasity in humans is highly variable, varying among factors such as genetics, age, gender, and immune system status. Therefore, you should undergo blood tests for liver enzymes at least once every three months to ensure that the levels are not excessive.
Dear friends, my 87 year old wife has been treated for 4 years with chemotherapy for ovarian cancer. Her cancer marker (CA125) has been climbing, she is fatigued and weak. Is it okay for her to take Fenbendazole alongside the chemo ? Can she benefit from doing so? I would very much appreciate your advice.
Thank you very much and merry Christmas
Ron Warner
Muncie, Indiana
Hello, Ronald. Thank you for a question.
Fenbendazole is efficacious and relatively safe when combined with chemotherapy.
Nevertheless, there are a few matters that require our attention. Traditional therapies such as radiation, chemotherapy, and others primarily target rapidly dividing cells. Fenbendazole inhibits the multiplication of cancer cells, which may reduce the efficacy of chemotherapy. Fenbendazole use may be discontinued two days prior to and two days following a radiation session. You may then proceed with your fenbendazole regimen.
Hello Yelena,
Depending on your child’s age, we recommend consulting with your pediatrician, who can prescribe the appropriate anthelmintic medication.
Hello, Jim, thank you for a question!
There is limited evidence suggesting that benzimidazoles and ivermactin, may have the potential to affect blood glucose levels, but the mechanisms and significance of this effect are not well-understood. Some studies have reported changes in glucose metabolism in animals treated with benzimidazoles, but further research is needed to clarify these findings and determine their relevance in humans.
Hello, Rosa!
Yes, you can do fenbendazole protocol for parasites and meanwhile use herbal remedies for a cleanse. Fenbendazole has only a few side effects and is considered safe. However it is hard to consult more, since we do not know what herbal remedies you are using. You should monitor liver enzyme changes via blood test and see how is is your overall health. Consult with a doctor if needed. Best regards!
Dear Deborah,
Based on toxicology studies, benzimidazoles like Fenbendazole, Mebendazole, and Albendazole are generally considered safe. However, no drug is completely free of side effects. While scientific data does not indicate significant adverse reactions from taking fenbendazole, there are anecdotal reports of potential toxicity:
Up to 5% of individuals may experience stomach discomfort or diarrhea when taking large quantities of fenbendazole continuously without breaks.
I found 1000mg fenbenzadole tablets from an online pharmacy in India. The brand is Jeerima, and the packaging says each tablet actually contains 1000 mg fenbenzadole, with no other fillers. If I break each tablet into four equal pieces, and swallow one piece a day (approximately 250mg/piece of the tablet), do you think that should be acceptable if I’m trying to get close to the 222mg/day dose? And do you think I can just swallow the piece whole, rather than grinding it in to powder? It just seems the other brands available have other ingredients or fillers that make up part of that 1000mg total, and they come in powder instead of tablet form. So I want to make sure I’m comparing apples to apples when comparing these tablets to the powder forms. Thank you.
Hello Mary,
If your recommended daily dose of Fenbendazole is 222mg, it is perfectly safe to take 250mg. You can achieve this by dividing a 1000mg tablet into four equal parts. Regarding your question about the form of Fenbendazole—whether powder or tablets—it will not affect the absorption of the active substance, so choose whichever form is more convenient for you.
It is important to note that tablets contain additives to maintain their shape, whereas powder is a pure form without impurities. Given this, I recommend reviewing the products from reliable suppliers on our website to make an informed decision about which form to use.
You can find more information and options at: https://www.fenbendazole.org/suppliers/
You mentioned the possibility of liver injury with longer term use of fenbendazole. I appreciate how your protocol includes herbs and also breaks from fenben to prevent that from happening. One thought I had was that liver injury can also be compounded by chronic high dose of curcumin? Also, can you please comment on the side effects of fenbendazole on the bone marrow? I came across some reports of general bone marrow suppression and neutropenia in particular. Has your protocol been evaluated for this?
Dear Vidya,
Thank you for your question.
Curcumin should not cause any adverse effects when administered in accordance with our protocol. On the contrary, prolonged use of substantial quantities may result in adverse effects.
Regarding the second aspect of your question, it is indisputable that chronic administration of high concentrations of Fenbendazole has an impact on the bone marrow. However, our protocol is structured to allow you to select a safe dosage and administration schedule that includes recovery periods. Fenbendazole should therefore have no adverse effect on the bone marrow when administered as directed.
Does fenbendazole treatment work for lymphoma? My uncle was just diagnosed with large b cell lymphoma. He is so sick now since they dragged their feet and he can’t do chemo. I’ve been trying to get my aunt to give him the fenben I bought.
Dear Michelle,
There are known studies on the possible positive effect of Fenbendazole in the treatment of lymphoma. Because of this, your uncle may start using Fenbendazole.
However, considering your uncle’s serious condition, the treatment may not give the desired results. But it can influence the course of disease development and slow it down.
If you decide to give Fenbendazole to your uncle, taking into account the serious condition of the patient, be sure to monitor his general condition and do regular blood tests.
Hello Bec,
Fenbendazole is primarily an antiparasitic drug used to treat infections caused by various parasites, commonly in animals. It belongs to a class of drugs known as benzimidazoles. Although fenbendazole is primarily used for parasitic infections, there has been some evidence and experimental studies exploring its effects on other conditions, including certain cancers, due to its potential anti-inflammatory and immune-modulating properties.
However, there is limited to no clinical evidence supporting fenbendazole’s effectiveness for treating arthritis in humans. The use of fenbendazole for conditions other than its approved indications, especially in humans, should be approached with caution and ideally under the guidance of a healthcare provider.
If you or someone you know is considering fenbendazole for arthritis, it’s important to consult with a medical professional to discuss the potential benefits, risks, and evidence-based treatment options available for arthritis management.
Dear Connie,
CBD may help alleviate symptoms associated with cancer and its treatments, including pain, inflammation, nausea, and anxiety. However, its use is not mandatory but rather recommended as part of a broader treatment plan. When deciding to incorporate supplements or medications like CBD, it’s crucial to always consider the patient’s specific condition and overall well-being.
I’m currently using fenbendazole on my dog for cancer. I’m using it everyday as I feel her cancer is progressing quickly. She is on other meds for pain and also prednisone. My question is: can acetaminophen with codeine be used with fenben? I read someone’s blog that stated they shouldn’t be used together. I have a few times but won’t anymore until I find the answer. Thank you.
Hello Michele,
Fenbendazole is generally recognized as safe and well-tolerated. However, several scientific articles have discussed potential liver effects when Fenbendazole is used with Acetaminophen.
Therefore, it is important to consult with your veterinarian before making a decision. If you decide to administer Fenbendazole along with Acetaminophen and Codeine, we recommend closely monitoring your dog throughout the day and conducting regular blood tests and enzyme tests to ensure your dog’s well-being.
To obtain curcumin, is it possible to take , curkuma and extract curcumin from it?
The real question is; is curcumin a ingredient of curcuma?
My wife is diagnosed with fast-growing troath-canser (begin okt ’23) chemo is out of the question as also radiation . She started with Panacur begin nov. And reacted good, began eating again and regained strength. The radiation treatment that was offered to her to reduce pain, turned the recovery around, and only stopping eating and sick feeling was left as result. Now se is ready to continue with Panacur and additional curcumin because her age and poor liver condition.
Has anyone tips how to get curcumin / curcuma?
Hello Louis,
It is great to hear that the Fenbendazole treatment is showing positive results for your wife’s health. Regarding your first question, curcumin is a key ingredient found in turmeric, which is a spice made from the root of the plant Curcuma longa. Curcumin is the main active component of turmeric and is responsible for its vibrant yellow color and many of its health benefits.
In response to your second question, curcumin supplements are widely accessible and can be purchased from numerous pharmacies or online retailers.
Additionally, we recommend considering other supplements that might enhance the benefits of Fenbendazole. You can explore a recommended list of such supplements through this link: https://www.fenbendazole.org/fenbendazole-information/supplements/
Dear WeRColt,
Fenbendazole is primarily recognized as an antiparasitic medication used in veterinary practices. Recently, it has garnered attention for its potential anticancer properties. However, there is no scientific evidence supporting its effectiveness in treating Lyme disease or other tick-borne illnesses.
Lyme disease, which is caused by the bacterium Borrelia burgdorferi and transmitted through tick bites, is typically treated with antibiotics. Effective medications for this condition include doxycycline, amoxicillin, and cefuroxime, all of which target the bacterial infection directly.
It is crucial for patients to consult with healthcare professionals for accurate diagnosis and treatment of Lyme disease or similar tick-borne diseases. These professionals can offer guidance based on established medical research, ensuring treatments are tailored to individual health requirements.
Dear Patrick,
Thank you for your question. Fenbendazole should be taken once daily, either with or after a meal, to enhance the medication’s absorption. For the correct dosage and schedule tailored to your body weight and treatment objectives, we recommend using our dose calculator. You can find all the necessary information and answers to your questions by visiting the following link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Dear Beverly,
Fenbendazole is an antiparasitic medication commonly used in veterinary medicine and more recently explored for potential anti-cancer properties in humans. It is not typically formulated or intended for topical use, especially on human nails to treat fungal infections.
For nail fungus, treatments typically involve antifungal medications specifically approved for that use, either in topical forms like creams and lacquers or in oral form for more severe cases. Examples include terbinafine, ciclopirox, and amorolfine.
Using Fenbendazole topically for nail fungus is not supported by clinical research or medical guidelines. It’s crucial to consult a healthcare provider to get the right diagnosis and treatment recommendations for nail fungus. They can prescribe appropriate antifungal treatments that are safe and effective for your condition.
Good Evening … I accidentally purchased 444mg capsules instead of 222mg capsules. How would I be able to accurately reduce the dosage to 222mg? Thank you for any recommendations.
Dear Holly,
You can open the capsule and divide the contents in half. This approach will provide you with two doses, one for each day.
You can mix the powder from the capsules into food, yogurt, juice, or water for consumption.
Hello Jim,
Fenbendazole should be taken once a day, either during or after a meal to enhance absorption. If the dose calculator has determined that your daily dosage should be 444mg based on your body weight, you should take this entire amount at one time each day.
Hello Melissa,
The numbers 444 and 222 represent the dosages of Fenbendazole in milligrams. To determine the appropriate dosage schedule for your needs, you can use our dosage calculator. It’s available for free and can help you calculate the correct amount of Fenbendazole based on various factors. You can access the calculator below: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
My father has HBV, unfortenatly so called “each year control potocol” falied, and he got HCC 80mm and the two smalest 40mm and 20mm. in 7 and 8 sector of liver. Twoo weeks ago he had TACE procedure on the big one, with 100% success.
Fenbenlab has a two kind of capsules dosages, 222mg and 444mg.
Can i bay 444mg and divadet on half, or is better 222 each ?
Please you opinion about my intention give to him 444mg every second day or every day mon-fri and weekend rest ?
Best wishes,
ljupcho kotevski
Skopje
Macedonia
Europe
Hello Ljupcho,
You can split the 444mg capsule in half to create a two-day supply.
We recommend using our dose calculator to determine the correct dosage for your father. Fenbendazole should be taken once daily, following the schedule outlined by the dose calculator.
We advise against experimenting with dosages or changing the prescribed administration schedule. Therefore, we do not recommend taking a dose higher than 444mg per day.
Our dosage calculator is designed to maximize the effectiveness of the treatment while minimizing potential harm to the patient’s body. Given your father’s health, we suggest continuously monitoring his overall health condition and conducting regular blood and liver enzyme tests.
You can find the dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello Anita,
Fenbendazole is generally considered safe and well-tolerated, making it likely safe to use alongside Essiac tea or other herbal supplements. However, it’s important to note that not all possible interactions are well-documented. Remember that all medications and supplements can have side effects.
For this reason, we recommend regular monitoring of your health and routine blood tests to ensure everything remains in balance. Always consult with a healthcare professional before starting any new treatment regimen to ensure it is appropriate for your specific health needs and conditions.
Through research that I have done, I know that Fenbendazole has promising results on “organ tissue cancers” or “soft tissue cancers”. I have not found any information on the effects of Fenbendazole on bone metastasis. Can you enlighten me on this???
Hello Anne,
Some reports and preliminary studies suggest that fenbendazole may inhibit the growth of cancer cells and potentially cause cancer cell death. However, scientific evidence supporting its effectiveness in fighting bone metastases or other types of cancer in humans is still limited and not well known.
Although there are promising signs of the possible anticancer effects of fenbendazole, it is very important to use it with caution and choose an appropriate administration schedule. You should also constantly monitor the general condition of the patient and regularly check his blood tests.
If you are going to use fenbendazole, it should be part of a comprehensive treatment plan under the guidance of your healthcare provider and not as a substitute for standard cancer treatment.
In conclusion, although there is some interest in fenbendazole for its potential anticancer properties, including its use in the treatment of bone metastases, more research and clinical trials are needed to confirm its effectiveness.
Are there many reports of side effects from using fenbendazole in the human population? If yes, what are the most common side effects in the different body systems?
Hello Irene,
Fenbendazole is generally considered a reasonably safe and well-tolerated drug. However, there have been few reports and anecdotal evidence of its side effects in humans. Although detailed data are limited, the most commonly reported side effects of fenbendazole in humans include: Nausea, Vomiting, Diarrhea, Headache, Dizziness, Elevated liver enzymes.
Most side effects are usually mild and short-lived, but more severe reactions can occur, especially with long-term use or higher doses. It is important to note that because fenbendazole is not approved for human use by regulatory agencies such as the FDA, formal studies are limited, and the full range of potential side effects may not be well documented.
In summary, while there are reports of side effects of fenbendazole in humans, comprehensive and systematic data are lacking. The most commonly observed side effects involve the gastrointestinal system, the central nervous system, and the liver. These side effects are very rare and usually last for a short time.
My son suffers with chronic Epstein-Barr. Every time he gets a cold, it turns into an EBV flare up that takes many weeks to resolve. Would Fenbendazole help him?
Dear Susan,
Fenbendazole is an antiparasitic drug primarily used to treat worm infections in animals and, to a lesser extent, in humans. Its potential anticancer properties have also been explored in preliminary studies and reports. However, there is no scientific evidence to support the use of fenbendazole to treat viral infections, including Epstein-Barr virus (EBV).
Although not specifically approved for EBV, some antiviral drugs, such as acyclovir, can be used in severe cases under a doctor’s guidance.
In conclusion, there is no evidence that fenbendazole can help fight the Epstein-Barr virus. It is important to consult with your healthcare provider for proper diagnosis and treatment options. Always rely on evidence-based treatments and professional medical advice to manage viral infections.
Dear Karen,
There is currently no scientific evidence to support the use of fenbendazole for treating multiple sclerosis (MS). The exact cause of MS is unknown, and it is typically managed through a combination of medications and lifestyle adjustments to slow the progression of the disease and manage symptoms.
Drugs such as interferons, glatiramer acetate, and newer oral medications like fingolimod, dimethyl fumarate, and siponimod aim to reduce the frequency and severity of relapses and slow the progression of the disease.
A doctor may also prescribe medications to help manage specific symptoms, such as muscle spasms, pain, fatigue, and bladder problems.
Physical therapy can improve mobility, strength, and coordination. Additionally, regular exercise, a balanced diet, and stress management can support overall health and well-being.
In conclusion, although fenbendazole has been studied for its potential anticancer properties and is primarily used as an antiparasitic drug, there is no evidence that it is effective in treating MS. If you or someone you know has MS, it is important to consult with a healthcare provider to discuss appropriate treatment options based on current medical guidelines and evidence-based practices.
Hello Paula,
Fenbendazole itself, as an active pharmaceutical ingredient, does not contain products of animal origin. However, the formulation of the final product, such as tablets or capsules, may include various inactive ingredients (excipients) that could contain components of animal origin.
For this reason, we suggest you analyze the list of Fenbendazole suppliers we offer and choose the pure substance in powder form. This way, you avoid the risk of buying medications with auxiliary substances typically found in tablets or capsules.
You can find the list of suppliers by clicking on this link: https://www.fenbendazole.org/suppliers/
My husband has colon cancer that spread to his brain he is going to be going on hospice next week it has started to effect his thinking some . Do u think it is to late for this protocol and would it help him have better quality of life.
Hello Connie,
If your husband’s general condition allows for off-label medication, you might consider trying Fenbendazole. While it’s challenging to eradicate cancer once it has spread, Fenbendazole may help slow the progression of the disease and improve his overall well-being.
could you explain the dosage for taking fenbendazole. I weigh 75KG how much should I take, is it with food, and for how many days. How long till I take a second round and do I need a 3rd round to kill parasites?
Dear Tracy,
You can find all the information you need by clicking on this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
This is our dose calculator, which will calculate the required dose of Fenbendazole according to your body weight and advise you on how often to take it. Fenbendazole is typically recommended to be taken once a day with or after food, but you can confirm this with the dose calculator. The calculator also suggests additional supplements that can help enhance the effect of Fenbendazole and contribute to your overall well-being.
If you have any further questions, we will be happy to answer them.
Hello Brenda,
We recommend that you view our list of reliable suppliers, which you can find here: https://www.fenbendazole.org/suppliers/
This will help you avoid purchasing low-quality Fenbendazole.
Hello from the US. Thank you so much for providing a place for us to ask questions. I have FenBen 222mg from the FenBenLab site. I am treating my dog. The dose says 567mg. You may have the answer to this on the site but I don’t see it. Please suggest how I should treat him with the 222mg capsules, as I don’t know how much is filler and how much is medicine.
Thank you!
Hello Willow,
FenBenLab is one of the best suppliers that sell sufficiently pure Fenbendazole with a purity of 99.92%. You can find out more about this supplier here: https://www.fenbendazole.org/suppliers/fenben-lab/
We also suggest using our dose calculator. It will calculate the required dose and schedule for your pet based on its body weight. Be sure to specify in the “Fenbendazole for” section what you are treating your dog for.
You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you have any further questions, we are happy to help!
Why dose the panacure c have a red, green and yellow jacket for different weights, but each one still has 222mg per dose?
If the weight for a canine of 226 lbs is 5 red jackets, one green and one yellow per day, wouldn’t the dosage be the same for humans?
Hello Tonya,
• Red Panacur: For horses (10% concentration)
• Yellow Panacur: For dogs (22.2% concentration)
• Green Panacur: For small animals like birds and rabbits (concentration ranges from 2.5% to 10%, depending on the species)
Fenbendazole is a veterinary drug, and the dosage for humans is different from that for animals. We suggest using our dose calculator. Here you will find all the information you need. The calculator will determine the required Fenbendazole dosage and administration schedule based on your body weight and the purpose of the treatment, whether it is for parasites or cancer.
You can access the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Dear ELISE,
Use our dose calculator and select “Parasites” under “Fenbendazole for.” The dosage calculator can be found here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
All the necessary information, including the required dose according to body weight and the administration schedule, can be found in the dosage calculator.
Dear Pam,
Thank you for your question. There is no scientific evidence or clinical trials to support the use of fenbendazole in the treatment of neurological diseases such as Parkinson’s disease, including associated tremors.
If I am on feeding tube and flush and not eating how much should I take and when, and should I take the cbd oil and curcumin too. Will it give me diarrhea?
Dear Bill,
The bioavailability of fenbendazole may be increased by the presence of food in the intestine. Eating food slows intestinal motility and increases gastrointestinal blood flow, which can enhance drug absorption. Therefore, it is recommended to take fenbendazole with or after a meal. Particularly, consuming fatty foods while taking fenbendazole can further increase the absorption of the drug.
CBD oil and curcumin are supplements known for their health benefits, but like any supplement, they can have side effects depending on individual reactions. CBD oil is generally well-tolerated; however, some individuals might experience gastrointestinal side effects such as diarrhea, particularly at higher doses. Curcumin, the active ingredient in turmeric, can also cause digestive issues, including diarrhea, especially when taken in high doses. The bioavailability of curcumin supplements varies, and some formulations may be tougher on the stomach than others.
If you are beginning any new supplement:
– Start with a low dose and increase gradually to monitor your body’s response.
– Pay attention to how your body reacts to these supplements, especially if you are combining them.
It’s advisable to have regular blood tests and monitor your general well-being. This practice helps ensure the safe and effective use of supplements in conjunction with any other treatments you may be receiving. Regular monitoring is especially important when starting a new supplement regimen or when combining supplements with other medications, as it helps in identifying any potential interactions or side effects early on.
Yes question,I am a 67 year old male and currently have a biopsy for my prostate scheduled.I weigh 200 lbs and am fairly healthy.My Father and a brother both had prostate cancer so a pretty good chance they will find it in mine as well.What would a good regimen for me as I lean heavily to natural treatments .Look forward to your response.Thank you
Dear Scott,
We suggest utilizing our dose calculator to determine the appropriate dosage of Fenbendazole for cancer prevention. Additionally, at the bottom of the calculator page, you will find a list of recommended supplements. These supplements are intended to enhance your overall health and boost the efficacy of Fenbendazole.
You can find the dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello and thank you for this site 🙏
I have been treating my dog for small cell carcinoma. I believe I have the dosages wrong, and have caused a platelet disorder resulting in a glaucoma. Mainly because I have had resistance here in Australia in accessing fenben in tablet form to treat my dog. As a result I turned to panacur, but it comes as 25g/l it has been up and down, definently slowed the aggressive growth, but we are still fighting for him. Sadly I have kept him at high dose for some time before being able to find this site, resulting in the glaucoma for which he is currently on prednisone high dose.
Could you please help me work out the correct dosage for a currently 23kg dog. I will probably take him off treatment for three weeks as suggested and then retry after that. Scary to allow the growth to happen but he is definitely in need of correct care and general advice on dosages. Thanking you so much for everything. Megan 🙂
Hello Megan,
We recommend using our dosage calculator to find the right dose of fenbendazole for your dog according to its body weight. You can access the dose calculator through this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Additionally, we encourage you to check out our list of trusted suppliers here: https://www.fenbendazole.org/suppliers/
This will ensure you administer the correct dose for your dog and simplify your experience with fenbendazole.
Hello, I just purchased fenbendazole tablets and am trying to figure how to take them. Should I grind them up before using or just swallow them whole like capsules? I dont have cancer, wasnt vaccinated, and dont know if I have parasites, but Ive been hearing that everyone likely does, especially if they own pets, and I have two cats. If Im taking them for possible parasites, how often should they be taken?
Thank you for this website!!
~Bonnie Dolack
Hello Bonnie,
We suggest using our dose calculator to determine the appropriate dose of fenbendazole based on your body weight. You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
When using the calculator, make sure to select “Parasites” in the “Fenbendazole for:” section.
There is no need to crush fenbendazole tablets. If the calculator indicates that you need to take 222mg of fenbendazole, and you have 222mg capsules, simply take one capsule daily with or after food.
At the bottom of the calculator page, you’ll find all the necessary information. If you have any more questions, we will be happy to help.
Hi what colour is fenbendazole, and does it have an odour/smell? I purchased some which is advertised as being 99.9% purity; its a greyish/pinkish colour, not finely ground, with a strong odour.
Hello Dre,
Fenbendazole is typically characterized as an odorless, white powder. It is commonly found in the form of a fine, flour-like substance. Variations in color or the presence of odors can sometimes indicate impurities or other additives, as pure fenbendazole is expected to be colorless and without significant odor.
Hello Tim,
Yes, Fenbendazole is generally safe and well tolerated, and it often shows compatibility with a wide range of medications, supplements, and standard cancer treatments such as chemotherapy, immunotherapy, and radiotherapy.
Seems like most are using the 222 protocol to fight cancer. Is there a problem with the 444 fen ben? Would that be just as affective as the 222? Has anyone tested the 444 for fighting cancer?
Thank you.
Hello Alva,
The numbers 222 and 444 on the bottle indicate the amount of Fenbendazole in milligrams per capsule. The appropriate dose, whether 222mg or 444mg, depends on the patient’s body weight. Taking a higher dose than what is suitable for your body weight will not enhance the effectiveness of the treatment and may potentially cause harm.
We suggest using our dose calculator to determine the right dose for you. It will provide you with all the necessary information tailored to your specific needs. You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello Denise,
Yes, Fenbendazole may potentially have a beneficial effect in treating ovarian cancer, but it’s challenging to predict exactly when you might see these positive effects. The effectiveness and timing of results from Fenbendazole as a cancer treatment can vary significantly, much like any other treatment.
The individual response can depend on various factors including the type of cancer, its stage, the patient’s overall health, and how the cancer reacts to the treatment. Fenbendazole is often used in conjunction with standard cancer treatments, such as chemotherapy and radiation therapy, which might also influence the timing and efficacy of the outcomes.
Given these factors, the effects of fenbendazole may become apparent within 1 to 4 months of use. Therefore, we recommend consistently following a prescribed protocol to assess whether this treatment approach is suitable and effective for your specific circumstances.
Hello Pat,
Thanks for your question. Yes, Fenbendazole is effective for preventing parasites. We recommend using our dose calculator to determine the appropriate dosage and schedule based on your specific needs. You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hi, thank you for this site, the information and testimonials provide hope and an opportunity to improve your life!
I have Stage 1 CCL (Chronic Lymphocytic Leukemia) and was wondering if the Fenbendazole protocol is effective with CLL and other blood cancers?
Thanks so much for your reply.
Dear Parker,
Yes, fenbendazole has been explored for its potential beneficial effects in treating various types of blood cancer, including CLL. However, the effectiveness of this treatment can vary significantly from one individual to another. The response to treatment depends on several factors, including the type of cancer, its stage, the patient’s overall health, and how the cancer reacts to the treatment. Fenbendazole is sometimes used alongside standard cancer treatments like chemotherapy and radiation therapy, which may also influence the outcomes and timing of results.
I’m 156 lb and been taking fenbendazole once a day, 7 days per week. My PSA was at 174.1 before fenbendazole and is now at 74 after two weeks. I decided to increase to two doses a day morning and evening with olive oil and have been doing this almost one week. My cancer has metastasize to the spine. At beginning after starting this treatment, the spine pains was getting better and better each day. After one week, the pains start to increase again. Are the pains associated with the die-off? To complicate the pain issue, I recently took an infusion of Zometa (to rebuild bones and a bad decision) and the pains have become severe as that is one of major side effects of Zometa. Has anyone had experience with taking more one dose of fenbendazole a day?. For what conditions and the results? Experience with Zometa?
Dear G.L.,
It is excellent news that your PSA levels are decreasing with Fenbendazole treatment! Remember, treating cancer is a gradual process and should not be rushed. We advise you to continue following the prescribed protocol and use the Fenbendazole dosage as determined by our dose calculator, which factors in your body weight. Ensure you take the correct dose once daily. Also, to keep your liver enzyme levels healthy, it is crucial to incorporate short breaks in your treatment schedule, ideally taking 1-2 days off each week.
Hello Kathy,
To calculate the correct amount of Safe-guard® 0.5% Crumbled material for dosing Fenbendazole, it is essential to understand the concentration and how it translates into milligrams:
For a 222mg dose: You will need 44.4 grams of Safe-guard® 0.5% Crumbled material. This is because each gram of this formulation contains 5mg of Fenbendazole (0.5% of 1000mg).
For a 444mg dose: You will need 88.8 grams of Safe-guard® 0.5% Crumbled material to achieve the necessary amount of Fenbendazole.
These calculations ensure you administer the correct dose based on the Fenbendazole content in the Safe-guard® product.
I am getting mixed messages. My husband has grade 4 glioblastoma, the tumor was successfully removed thru surgery. He is currently taking radiation and chemo (temador) simultaneously. Some say we should not take fenbendazole during chemo treatment and some say it is alright to take it. What should we do?
Hello. I was reviewing your website and looking at dosages and protocols. I didn’t see anything specifically for Lyme Disease.
1) Do you have a Lyme-Disease protocol? Or would it simply be the protocol for general parasites?
2) I am 185-190 lbs. Should I break up the 444mg dosage into taking 222mg with breakfast and 222mg with dinner? Or should I take all 444mg at once?
3) Being that along with the Lyme, I have many co-infecting strains, should I do the 5-consecutive days on followed by 3 weeks rest more than just twice?
Hello JOEL,
Unfortunately, fenbendazole is unlikely to be effective against Lyme disease, which is caused by the bacterium *Borrelia burgdorferi* and transmitted through tick bites. Unlike parasites, Lyme disease is a bacterial infection, and its recommended treatment involves antibiotics such as doxycycline, amoxicillin, or cefuroxime. These antibiotics are effective in clearing the infection when administered early.
Regarding the use of Fenbendazole as an antiparasitic, if the dosage calculator recommends 444 mg based on your body weight, you should take it once daily with or after a meal, without dividing the dose into smaller portions. The typical schedule for taking fenbendazole involves administering it once a day for five consecutive days, potentially repeating the cycle after three weeks.
Dear Lisa,
Milk thistle is known for its potential estrogenic effects, which could be concerning for those with estrogen receptor-positive cancers. While the evidence is not definitive, some research suggests that milk thistle might theoretically act similarly to estrogen.
Given that your cancer has metastasized to the liver, it’s crucial to use any supplement that impacts liver function with caution. Regular monitoring through liver function tests might be necessary if you choose to use milk thistle.
If you have concerns about using milk thistle, your healthcare provider might suggest alternative methods to support your liver health that are safer and better suited to your specific needs.
As for the Fenbendazole dosage, it is recommended to take it once daily according to your body weight. If the dose calculator recommends 444mg per day for your situation, you do not need to split this dose into multiple parts.
Hello Pam,
Fenbendazole is generally considered safe and well-tolerated for human use. There is a lack of established research or evidence on interactions between fenbendazole and anti-Parkinson medications like carbidopa and levodopa. Given this, while all medications can have side effects, particularly when their interactions are not thoroughly studied, it’s crucial to proceed with caution. If you choose to use fenbendazole alongside carbidopa and levodopa, we recommend closely monitoring your overall health and undergoing regular blood tests to ensure no adverse interactions occur.
Dear Belinda,
Combining fenbendazole with acetaminophen requires careful consideration, particularly concerning liver health. While acetaminophen is generally safe when used as recommended, it is known to cause liver damage at excessive doses and is one of the most common causes of drug-related liver failure globally.
The interaction between fenbendazole and acetaminophen, particularly in terms of liver health, is not well-documented. Without extensive studies, it’s challenging to predict how these two drugs might interact or whether they could exacerbate liver stress or damage. Given that both drugs are metabolized in the liver, introducing fenbendazole into a regimen that includes acetaminophen could theoretically heighten the risk of liver issues, such as hepatotoxicity or even necrosis, if not closely monitored.
If you choose to use both medications, closely monitoring liver function with regular blood tests is crucial, especially if there are pre-existing liver conditions or if either drug is used frequently or at high dosages.
Be vigilant for signs of liver distress, including fatigue, pain in the upper abdomen, dark urine, or jaundice. Should any of these symptoms occur, seek medical assistance promptly.
In summary, although there is no conclusive evidence that combining fenbendazole with acetaminophen will certainly cause severe liver problems, the absence of detailed interaction studies and the established risks associated with acetaminophen necessitate a cautious approach.
what is the dose (and for how many days) of fenben for a human adult for parasites? I am thinking it would be closer to the milligram per kilogram weight of dog for example. so for example if a 40 lb dog gets 4 grams of panacur c would a human weighing 150lbs then take 15 grams? for 3 days?
Hello Barbara,
Fenbendazole is generally well-tolerated and considered safe, but there are no clinical studies on its interactions with abiraterone or dexamethasone. The effects of combining these drugs—whether antagonistic, synergistic, or neutral—have not been explored.
Both abiraterone and fenbendazole undergo metabolism in the liver, and using them together could potentially increase the risk of liver toxicity or impact the effectiveness of either or both medications.
Given this, if your husband decides to proceed with this combination, it might be beneficial to also consider liver-supportive supplements like milk thistle, which can help maintain liver function.
However, without solid research or clinical trials, it’s challenging to assess the safety and efficacy of combining fenbendazole with standard cancer treatments like abiraterone and dexamethasone. Unanticipated side effects or interactions could occur.
Therefore, it’s crucial to closely monitor your husband’s overall health and conduct regular blood tests to detect any potential issues early.
Hello Rick,
Treatment of lipomas using fenbendazole is not commonly practiced or extensively researched, making it difficult to assess its effectiveness for this purpose. Common treatments for lipomas typically include surgical removal, liposuction, or steroid injections.
Since lipomas are benign tumors, anticancer treatments are generally not appropriate. These treatments are designed to target and kill cancerous cells, which are absent in benign lipomas.
It’s crucial to monitor any changes in a lipoma, such as growth or pain. If such changes occur, a healthcare provider should evaluate the lipoma. Sometimes, a biopsy may be necessary to confirm that the growth is indeed a lipoma and not a more serious condition like liposarcoma, a rare but malignant tumor that can resemble a lipoma.
Sorry I forgot to say Oscar has chronic kidney disease and over active thyroid, his current medication in addition to the panacur is
Prednisalone 5mg daily
Claveseptin 50mg – 1.5 tablets twice a day
Thyronorm 4.5ml twice daily
I have been treating my cat Oscar (6.2kg) with Panacur paste for the past month and can see improvements in his overall health. I just tried to reorder the panacur paste but the online vet service refused the order because they cannot prescribe for anything other than parasites. Your calculator says Oscar needs 444mg of fenbendazole per day, but how does that equate to the paste? the paste is 5gm and I usually split this into 3 doses for him, is this right? or would I be better to buy the powder and weigh the dosage. Is the powder the same concentration as the paste? sorry but I am getting confused and dont want to overdose my beautiful cat. Plus it may be easier to source the powder if the vet sites are restricting how much I can purchase. Any help would be appreciated. many thanks.
Hello O’Mara,
Administer 4.44 g of Panacur paste to your cat, corresponding to 444 mg of fenbendazole. It is best given with or after a meal.
If obtaining the prescribed dosage of Panacur from your vet for Oscar proves challenging, consider using pure fenbendazole instead. This alternative simplifies dosing and typically doesn’t require a prescription, which may ease the process for you.
When it comes to the drug’s concentration, the amount needed to achieve the necessary dose of fenbendazole might differ between paste and powder forms. Both forms contain the same concentration, but the volume required could vary.
Fenbendazole powder is a pure form of the medication, generally additive-free, and often includes a dosing spoon, making it convenient for administration.
Regarding drug interactions, fenbendazole is generally safe and well-tolerated. No significant adverse interactions have been documented with Prednisolone, Clavaseptin, or Thyronorm. However, as both Clavaseptin and fenbendazole are metabolized by the liver, it’s important to closely monitor Oscar’s liver function.
It is also crucial to keep an eye out for any signs of adverse effects or changes in Oscar’s health condition. Regular blood tests may be necessary to track his liver function, thyroid levels, and other vital health indicators.
I hope this information will be useful to you.
Hello Joel,
CBD is known for its potential therapeutic benefits, including pain relief, reduction of anxiety and inflammation, and possibly aiding in the management of symptoms in various disorders. It is generally well-tolerated.
Hi – I am helping a friend with lung cancer that has gone to the brain and is refusing standard treatment. What would be the appropriate frequency of taking febendazole since he is currently drinking and want to recommend what makes the most sense. I ask because I see it as every day, only 6 days or only 3 days/week. Any insight appreciated!
Dear Linda,
We recommend using our dose calculator. It will help you determine the correct dosage for your friend based on their body weight and will also guide you on the frequency of use. This calculator can provide all the answers to your questions regarding the dosage and administration schedule.
Access the calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Dear Judy,
We recommend using our dose calculator to determine the appropriate Fenbendazole dosage based on your body weight. Be sure to select the “Cancer Prevention Protocol” in the “Protocol” section.
You can access the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
To achieve a dose of 222 mg of fenbendazole, you will need 2.22 grams of Panacur horse paste. Similarly, for a dose of 444 mg of fenbendazole, you will require 4.44 grams of Panacur horse paste.
Hello Pete,
As of now, Fenbendazole has not been officially used or trialed as an antiviral medication in humans.
While there has been interest in the potential repurposing of many existing medications, including antiparasitics, for various diseases, including viral infections, there is no substantial evidence or clinical trials to suggest that Fenbendazole has been tested or used for antiviral treatment in humans. Its action mechanism and pharmacological profile do not typically align with the properties needed to combat viruses.
Hello Joy,
Utilize our dose calculator to determine the appropriate Fenbendazole dosage for each family member. In the “Protocol” section of the calculator, select “Cancer Prevention Protocol.” This will calculate the correct dose based on individual body weights. You can access the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello Alana,
We suggest using our dose calculator to accurately determine the required dose of Fenbendazole based on your body weight and the specific treatment you need. You can access the dose calculator by clicking on this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Based on typical dosing, you may need 222mg of Fenbendazole, which equates to 2.22 grams of Panacur paste.
Does Fenbendazole work for bone cancer? My husband used Fenbendazole to get rid of prostate cancer a few years back he was stage 4 prostate. He now has bone cancer in numerous places in his body He started taking it again at 455mg a day and protocol. I would appreciate any information. Thank you. Donna
Dear Donna,
Fenbendazole is considered for use in treating various types of cancer, including bone cancer, although its effectiveness can vary widely based on several factors. These include your husband’s overall health, how his body reacts to the medication, how the cancer responds to treatment, and his immune system’s status. It is difficult to predict whether Fenbendazole will be effective in your husband specific case.
If you decide to continue with Fenbendazole treatment, it is crucial to ensure that your husband feels well and that his blood counts remain within normal ranges. We send our best wishes and hope that the treatment proves beneficial.
Hello Abby,
Fenbendazole is considered for treating a variety of cancers, including blood cancers, although its effectiveness can vary significantly. This variation depends on factors such as the patient’s overall health, the body’s reaction to the medication, the cancer’s response to treatment, and the patient’s immune system status. Predicting the effectiveness of Fenbendazole in any specific case is challenging.
If you decide to start treatment with fenbendazole, it is crucial to monitor your health closely and ensure that your blood counts remain within normal ranges.
I see the dosages (fenben) for cancer and parasites. Please, what is the dosage for Hemorrhagic fever for 95 LBS and 165 LBS? For instance 222mg or 444mg once a day for 5 days, etc. Thank you so much.
Dear John,
Regarding hemorrhagic fevers caused by viruses like Ebola, Dengue, and Yellow Fever, there is no scientific backing or clinical research to support the effectiveness of Fenbendazole against these or any other viruses. Fenbendazole operates through mechanisms that are not designed to target viral replication or alleviate symptoms of viral infections.
Given the lack of evidence for its antiviral properties, using Fenbendazole to treat hemorrhagic fevers would be considered experimental.
If you choose to use Fenbendazole, follow the Parasite Protocol. Both individuals, whether they weigh 95 pounds or 165 pounds, would take the same dose of 222 mg of fenbendazole daily for five consecutive days. This standard dosage is part of the Parasite Protocol and is designed to be effective across a range of body weights. The regimen may need to be repeated after three weeks to ensure effectiveness.
I have long haul covid. I still cough especially when I bend over. I also have fluid on my heart from covid that didn’t respond to colchicine. I’m thinking of taking fenbendazole. I have purchased some already. Have you had any comments on people that have taken it for covid 19? Any suggestions would be appreciated. Thank you.
Dear Debbie,
Unfortunately, there is no scientific evidence or clinical research indicating that Fenbendazole is effective in treating or preventing COVID-19 in humans.
Hello Jen,
Thanks for your question. The presence of parasites in the stool does not necessarily indicate the effectiveness of the treatment. After taking Fenbendazole, it is possible, although not guaranteed, that you might see parasites in your stool. Larger worms like roundworms or tapeworms may be visible, while smaller parasites or their microscopic eggs may not be. In cases of heavy infestation, you are more likely to see dead or expelled parasites. The digestive process can also break down the parasites, making them less recognizable. Even in mild infections where you do not see parasites, the treatment can still be effective, as Fenbendazole is a reliable and approved anti-parasitic medication.
Regarding the effectiveness of Fenbendazole in cancer treatment, its success can be monitored through procedures such as biomarker hormone tests, PET scans, CT scans, MRI, biopsy, colonoscopy, and endoscopy.
Hello, thank you for this site. I have Leukemia and was wondering if this will work on blood cancers like leukemia or does it only work on cancerous tumors?
thank you
Dear Linda,
Some preclinical studies and reports suggest that Fenbendazole may have anti-cancer effects, including potential activity against leukemia.
Fenbendazole works by inhibiting microtubule formation, disrupting cell division, similar to chemotherapy drugs like taxanes and vinca alkaloids. It also interferes with glucose uptake and metabolism in cancer cells, starving them of the energy needed for growth.
There is some evidence suggesting Fenbendazole may enhance the immune system’s ability to fight cancer cells.
However, the effectiveness of this treatment depends on various factors, including the patient’s overall health and the cancer’s response to the treatment.
Fenbendazole, like any medication, can have potential side effects and risks. It is crucial for the patient to undergo regular blood tests and closely monitor their overall well-being.
We are using are using Safe-guard Suspension 10% (100 mg/mL) for my husband’s Kidney Cancer. How many mL should he take? He weights 180 pounds. Your site suggest 222mg but I don’t know how to convert that. Your help is greatly appreciated.
Hello Kelly,
To obtain 222 mg of fenbendazole for your husband, he will need to take 2.22 mL of Safe-guard Suspension 10%. This specific suspension has a concentration of 100 mg/mL, so administering 2.22 mL will provide the required dosage of 222 mg of fenbendazole.
I took the correct amount of FenBen for 5 days to get rid of parasites and have no idea if it even did anything. From what I read on your website I am supposed to wait three entire weeks before starting another round? If I take it for more than 5 days in a row will it damage my liver? And how can I tell if it is truly killing parasites without dissecting my poop?
Hello Frank,
Please follow the dosing schedule and dosage set by our calculator. It is not necessary to use the drug more frequently or for a longer duration than indicated, as Fenbendazole is a reliable and proven antiparasitic medication.
The presence of parasites in the stool does not necessarily indicate the effectiveness of the treatment. After taking Fenbendazole, you may or may not see parasites in your stool. Larger worms such as roundworms or tapeworms may be visible, while smaller parasites or their microscopic eggs might not be. Even in mild infections where you can not see the parasites, the treatment can still be effective.
Therefore, please continue the treatment according to the protocol. Following the prescribed schedule is essential for the treatment to be effective and to avoid any potential harm to your liver or body.
Hello, I am treating my dog with fenben because he has a cancerous mast cell tumor. My vet told me there is other info on this site for what he should take in conjunction with the fenben. I am not sure if she is referring to the curcumin and the CBD oil that is listed under the Joe Tipp’s Protocol but if so, would the dosage be as listed on the site? Or does it vary depending on weight? My dog is 14.6 lbs. he is taking 222mg of fenben for 4 days and then 3 days off. Please let me know about the dosage for the curcumin and CBT oil or if there is something else he should be taking. Thanks!
Hello Kim,
You have chosen the right Fenbendazole schedule for your dog. Regarding CBD and Curcumin doses, small dogs (under 15 lbs) should start with 2-4 mg of CBD. Begin with the lower dose range and observe your dog’s response, gradually increasing the dose if necessary. Administer CBD once or twice a day.
For curcumin, the dosage for small dogs (under 15 pounds) is 150-300 mg. Curcumin can be given once or twice a day and is often more effective when administered with a fatty meal to improve absorption.
Monitor your dog for any adverse reactions, such as gastrointestinal disturbances. If side effects occur, reduce the dose or discontinue use.
Ensure you are using high-quality pet products, as human supplements may contain ingredients harmful to pets.
You can view the other supplements we recommend for use with Fenbendazole by clicking on this link: https://www.fenbendazole.org/fenbendazole-information/supplements/
Dear James,
Please use our dose calculator, which you can find here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
The dosage depends on your weight and the purpose of the treatment. When entering your data into the calculator, ensure you correctly select the section “Fenbendazole for” and, if your treatment purpose is cancer, choose the appropriate option in the “Protocol” section. If you have any questions, please don’t hesitate to contact us.
Dear Janet,
Although few studies explore interactions between fenbendazole and anticonvulsants, existing information suggests fenbendazole is generally well-tolerated and seldom interacts with other drugs. In veterinary medicine, it is safely used in animals taking anticonvulsants, indicating a low risk of harmful interactions.
Fenbendazole is metabolized in the liver via the cytochrome P450 enzyme system, which also processes many anticonvulsants like phenytoin, carbamazepine, and valproate. This overlap could potentially lead to interactions that affect the metabolism, effectiveness, or side effects of one or both drugs.
As long as your liver enzymes (AST and ALT) are not elevated, you can take fenbendazole with your medication. Regular blood tests, liver enzyme monitoring, and close observation of your general condition are recommended.
Hi, have you maybe come across interactions between fenbendazole and prednisolone? My cat, she has lymphoma, she’s been on prednisolone for a long time now and it was working so-so. About a week ago I started giving her fenbendazole (~50mg/kg daily) and now it feels like prednisolone is not working as good as before, it looks like it works for a couple of hours and then it stops, like it was metabolized/flushed from the system a whole lot quicker. I asked my veterinarian about it, but she doesn’t have experience with long term fenbendazole usage, she said that sometimes the body gets used to prednisolone and it doesn’t work as good as before and there’s nothing we can do about it. Maybe that’s actually the case, but due to the time correlation I just wanted to explore other possibilities.
Dear Marta,
Fenbendazole and prednisolone, used in different medical contexts, have limited information on their direct interaction. Although there’s no significant evidence of specific harm from their combination, caution is warranted. Both drugs undergo liver metabolism, which could theoretically lead to interactions altering their effectiveness or increasing the risk of adverse effects. This could explain any changes in your cat’s response to prednisolone.
Monitoring your cat’s liver function and other vital parameters is advisable to promptly detect any adverse interactions. Additionally, closely watching for increased side effects or changes in drug effectiveness is crucial. If you notice a decrease in response to prednisolone, consulting your veterinarian about potential dose adjustments for either drug is recommended.
Hello Dave, thank you for your question.
Fenbendazole (FBZ) itself is not typically associated with a salty taste.
However, the taste of fenbendazole preparations can vary depending on the formulation and any additional flavorings or additives included by the manufacturer. Some animals may find certain formulations more palatable than others, but the taste is not generally described as salty.
If you or someone you know has experienced a salty taste while taking fenbendazole, it could be due to specific formulation or other factors.
Hello, I am trying to gauge how much powder to take for a parasite cleanse. i way about 150 lb. The powder came with a really small spoon but no directions. Can you help me?
Hello Anissa,
To rid your body of parasites, you will require a daily intake of 222 mg of fenbendazole. Administer fenbendazole once daily for five consecutive days. You might need to repeat the treatment after another three weeks.
The dosage of the powder depends on the supplier you obtained fenbendazole from. Without knowing the manufacturer you have selected, we cannot provide an exact dosage. Verify the dosage on the powder package; if it is 222 mg, one scoop daily should suffice.
I just purchased Fenben lab 222mg caps for deworming myself. Can i use this capsule to deworm my dog? She is 55lbs. Please provide mg and how many days of treatment required. Thanks so much!
Dear Tanis,
A 55lb dog will require 1247mg of Fenbendazole per day for parasite cleansing. Administer Fenbendazole once daily for five consecutive days.
For more detailed information and dosing guidelines tailored to your pet’s specifics, you can access the following link and input your pet’s details: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you have any further questions, feel free to reach out. We are here to assist and provide answers.
Hi,
My Father had Stage 2A colon cancer and had surgery to remove the entire colon. Doctors suggested no further treatment is required as there is no lymph node involvement. Besides accidently while doing upper endoscopy they found Neuroendocrine tumour which Grade 1 and non malignant. So they told us the regular follow up is enough and no need for surgery as it is very slow growing and non malignant as well. So in order to prevent colon cancer to relapse and also to shrink the NET tumour from further progressing. I want to give him Joe’s Protocol with 3 days Fenben tablet along with curcumin, milk thistle and cbd oil for 10 weeks and take a 10 weeks break for another set of fenben 3 days for 10 weeks. can i keep doing this for next few years, will it be fine? otherwise, My Father is a non smoker and has good fitness and leads healthy lifestyle
Dear Pavithra,
You are absolutely right about the fenbendazole cancer prevention schedule. Your father can take 1 capsule three times a week, once a day after a fatty meal. He should then take a four-day break from fenbendazole. Repeat this cycle for 10 weeks, followed by a 10-week break. Continue repeating this cycle for several years, until you are sure the cancer is completely gone.
Hello Brian,
There has been growing interest in the potential use of Fenbendazole as an anticancer agent, driven by scientific reports and early studies suggesting it might have anticancer properties. However, its effectiveness in treating thyroid nodules, which can be benign or malignant, is not well-documented. Such use would be experimental. If your wife decides to use Fenbendazole for thyroid nodules, it is crucial to monitor her overall well-being and have regular blood tests to ensure the treatment is proceeding safely.
Is there a difference in Manufacturing techniques/purity since the product is originally for animal consumption?
For clarity, are certain human consumption protocols NOT followed because animals can tolerate certain types of manufacturing process’ that make production cheaper?
Hello Chris,
Thank you for your question. Fenbendazole, in all its forms, is generally considered safe and is widely, though unofficially, used for human treatment. The animal-formulated drug does contain an additional additive. The inactive ingredients, such as lactose monohydrate, povidone, magnesium stearate, corn starch, silicon dioxide, and artificial flavorings, are generally deemed safe for humans in the amounts typically used in medications.
If you are concerned about these additives, we suggest reviewing the list of reliable suppliers we offer. You can choose pure fenbendazole without any additives.
The list of suppliers can be found here: https://www.fenbendazole.org/suppliers/
Hello,
My client has a Neuroendocrine cancer that had metastasized to the liver. She did’t go for chemotherapy, started 20 day fasting and started taking fenben. Is it OK to take it during fasting? she takes a little coconut oil with it for better absorption.
Hello Maya, thank you for your question.
First of all, we would like to emphasize that fasting requires significant physical effort, and we do not recommend it. Fenbendazole is absorbed into the bloodstream through the gastrointestinal tract. Fasting can suppress metabolism, reduce the effectiveness of fenbendazole, and place a substantial burden on the liver.
To support liver function, we recommend incorporating Milk Thistle into the treatment protocol. Milk Thistle can help improve liver health and function.
Additionally, it is important to closely monitor the patient’s condition. Regular blood tests, including liver enzyme tests, should be conducted as frequently as possible. This will help ensure that any potential issues are detected early and managed effectively, minimizing the risk of adverse effects.
Hello John,
Currently, there are limited direct studies on the effectiveness of fenbendazole in treating chronic lymphocytic leukemia (CLL). However, research has shown that fenbendazole possesses anticancer properties in various studies involving different types of cancer. These studies demonstrate that fenbendazole can inhibit cancer cell growth, reduce metastasis, and promote cancer cell death through several mechanisms.
One key mechanism involves disrupting microtubule formation, which is crucial for cell division and structural integrity. By interfering with microtubules, fenbendazole can effectively halt the proliferation of cancer cells. Additionally, fenbendazole has been shown to interfere with cellular glucose uptake, depriving cancer cells of the energy needed for their rapid growth and survival.
These mechanisms highlight fenbendazole’s potential as a broad-spectrum anticancer agent. Despite these promising findings, the application of fenbendazole specifically to CLL has not been extensively studied. Most of the existing research focuses on other types of cancer, and the evidence is primarily preclinical.
Hello Lee,
Increased urination while taking fenbendazole can be concerning and may be due to several reasons. Some drugs have a diuretic effect, increasing urine production, and while fenbendazole is not typically known for this, individual reactions can vary. Rarely, fenbendazole may cause metabolic changes that lead to increased urination, possibly involving the kidneys processing the drug and its metabolites more rapidly. It can also stimulate detoxification in the liver and kidneys, leading to more frequent urination as the body removes waste and toxins. Additionally, some people might unintentionally drink more fluids to aid medication absorption or due to a sensation of dryness.
Increased urination could also be unrelated to fenbendazole, potentially indicating an underlying condition like a urinary tract infection, diabetes, or a kidney issue. If this symptom is bothersome or persists, it is important to consult with a healthcare provider to rule out serious conditions and ensure the safe use of fenbendazole. They can offer a personalized assessment and suggest ways to manage this side effect.
Hello Sukhpreet,
The duration of fenbendazole use can vary based on the condition being treated and individual circumstances.
For cancer treatment, it is generally recommended to take one capsule (222 mg or 444 mg) of fenbendazole three times a week, followed by a four-day break. This cycle is typically repeated for 10 weeks, followed by a 10-week break. This cycle may be repeated for several years until there is evidence that the cancer has disappeared.
For cancer prevention, the same protocol is used: one capsule three times a week, with a four-day break each week. This cycle is continuous.
For treating parasitic infections in animals, fenbendazole is usually given for 3-5 days, but this duration is not directly applicable when used off-label for other conditions.
In summary, fenbendazole is a long-term treatment and should be used until there is assurance of complete health. Regular check-ups, blood tests, and medical evaluations are recommended if using fenbendazole for an extended period.
Hi
My wife has been diagnosed with terminal lung cancer post having bowel surgery to remove a tumour then diagnosed with liver cancer which was decreasing with natural therapies until the lung cancer appeared.
Since then she has been using a measure of 1.5 teaspoon of panacur liquid for most of the past 6 weeks with the occasion break with some improvements being able to lay flat to sleep able to speak longer sentences. Last bloods CEA show 5.8 and all organs functional.
Coughing following by vomiting happens after evening meals at times and a feeling of suffocating occurs. But does the protocol less the CBD oil.
I have not found fenbendazole capsules in Australia and need to know what the liquid quantity measure is if you could please?
Thanks Roger
Dear Roger,
You can try purchasing fenbendazole capsules through Amazon, which should be available in Australia. Additionally, we suggest exploring our list of trusted suppliers to choose the best option for your wife. You can find the list here:https://www.fenbendazole.org/suppliers/
As for the dosage, we cannot give an exact answer without knowing your wife’s weight. You can determine the correct dose based on her body weight using our dose calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If your wife needs 222 mg of fenbendazole, she will need 2.22 ml of Panacur liquid. For 444 mg of fenbendazole, she will need 4.44 ml of Panacur liquid.
I hope this helps clarify the dosage. If you have any further questions, feel free to contact us and we will try to assist.
Regarding CBD oil, if you think it is making your wife feel unwell, consider cutting the dose in half or stopping its use for a few weeks to see if the symptoms improve.
Hello Nancy,
For your body weight, you need to take 222 mg of fenbendazole once a day for 5 consecutive days. The treatment may need to be repeated after three weeks. You can find all the information regarding the dosing and administration schedule here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Simply enter your body weight and select who the fenbendazole is for. The dose calculator will provide you with the exact dosage and schedule.
If you have 444 mg capsules, you will need to split them in half to get the required 222 mg dose.
Hello Julia,
Fenbendazole can be purchased on Amazon and is typically available in most countries worldwide. Additionally, we recommend exploring the reliable suppliers we suggest. This information can help you make an informed decision when selecting the right Fenbendazole supplier and deciding on the preferred form of the drug, whether it be capsules, powder, or liquid.
You can find the list of suppliers here: https://www.fenbendazole.org/suppliers/
Thank you your informative website. I live in Australia and can’t buy Fenbendazole here. Instead, we have Menbendazole sold over the counter for parasites. Will Mendendazole work the same way for cancer?
Thank you and kind regards,
Annette Chen
Dear Annette,
You can buy Fenbendazole through Amazon, and it is available in Australia. If you decide to use Mebendazole, that is also a valid choice. Both mebendazole and fenbendazole are anthelmintic drugs with potential in cancer treatment, though they work slightly differently and have varying levels of evidence supporting their use.
Ultimately, the decision between mebendazole and fenbendazole may depend on factors such as the specific type of cancer, the patient’s overall health, and the clinical trials or studies backing their use.
I have melanoma. It is located on my ear. I’ve been reading that Medendazole or Flubendazole might be a better treatment? Or do you think the Fenbendazole works just as well? I am thankful for any advice you can give me.
Dear Keith,
When considering treatments for melanoma, three benzimidazole derivatives—flubendazole, mebendazole, and fenbendazole—have shown potential anti-cancer properties:
– Fenbendazole: Disrupts microtubule polymerization, induces apoptosis, and inhibits cancer cell viability and migration, with multiple anti-cancer mechanisms; popular due to low cost and safety but lacks extensive human clinical trials.
– Mebendazole: Approved for human use, extensively studied, inhibits cancer growth especially in brain, prostate, and ovarian cancers, effectively penetrates the blood-brain barrier.
– Flubendazole: Similar to mebendazole and fenbendazole, disrupts microtubule function, induces cancer cell death, potentially effective against some cancers but less studied.
Overall, mebendazole has the most clinical support, while fenbendazole is favored for affordability and safety despite less formal research.
Dear Pamela,
Yes, a low-sugar diet is generally recommended while taking fenbendazole for cancer treatment. This is based on the idea that cancer cells often take up more glucose than normal cells. By reducing sugar intake, you can limit the energy supply to cancer cells, potentially enhancing the effectiveness of the treatment. Cancer cells thrive on glucose for energy, so reducing sugar can help starve them and slow their growth. Additionally, a low-sugar diet can improve overall health by reducing the risk of obesity, diabetes, and other metabolic disorders.
If your husband loves sweets and finds it difficult to give them up, consider using sugar substitutes such as stevia, honey, maple syrup, or fruit. Also, remember to monitor all sources of sugar in his diet, including hidden sugars in processed foods.
Dear Marie,
Although Fenbendazole is generally safe and often used with other medications, combining it with Warfarin should be done with caution due to potential interactions that may affect blood clotting. Warfarin’s effectiveness can be influenced by various drugs, and there is limited information on its interaction with Fenbendazole.
If you decide to use these two medications together, we recommend monitoring your International Normalized Ratio (INR) levels more frequently to ensure your blood remains within the desired clotting range.
Additionally, be alert for signs of unusual bleeding or bruising, which could indicate improper blood clotting. If you experience these symptoms, you may need to adjust your Warfarin dosage based on your INR levels.
Hi. My Australian Shepherd, PISTOL, who is 12.5 years of age and weighs about 56 pounds has liver cancer. Can she take Fenbendazole and if so how much and how often? She just had surgery for laryngeal paralysis in April of 2023 and doing ok, however, the CT found liver cancer (4 inches x 3 inches). This is what I read so concerned with her having liver cancer: USE CAUTION WHEN ADMINISTERING THIS DRUG TO PETS WITH LIVER DISEASE. The recommended maintenance dose for dogs is 400 mg. To allow the liver to regenerate, three days on and four days off is recommended. If the treatment produces a response and causes tumors to diminish, you can continue with it continuously. The medication is fully safe for all dogs, with just minor precautions required for dogs with liver illness. Even yet, because of its decreased toxicity, Fenbendazole is likely to be far safer than chemotherapy.” PLEASE ADVISE AND THANK YOU VERY MUCH. PISTOL’S MOM
Dear Sherry,
Your information is correct. We can only advise you on the optimal dosage and administration schedule for Pistol to avoid additional strain on his liver. We recommend giving him 666 mg of Fenbendazole once a day for four consecutive days. Then, do not administer Fenbendazole for the next three days. Repeat this cycle weekly. Additionally, closely monitor Pistol’s general health with regular blood tests and liver enzyme levels.
You can also give Pistol milk thistle to support his liver health. Milk thistle contains silymarin, known for its antioxidant and anti-inflammatory properties, which can help protect and repair the liver. The typical dosage of milk thistle for dogs is about 1-2 mg per kilogram of body weight, given once or twice a day.
Dear Charles,
Currently, there are only a few scientific studies or clinical trials that directly support the effectiveness of fenbendazole in treating chronic lymphocytic leukemia (CLL). Most of the available information comes from reports and personal testimonials from individuals who have included fenbendazole as part of their cancer treatment regimen. Despite its unofficial status, many patients have reported positive outcomes, noting significant improvements while using fenbendazole.
These testimonials often highlight encouraging results, such as reduced tumor size and improved overall health. However, it is important to note that fenbendazole is primarily an antiparasitic medication for animals, which means there is limited official data and clinical research on its use in humans.
Hello Belinda,
Fenbendazole is widely used to treat various types of cancer, including liver cancer. If your husband’s tumors are small and in the early stages, Fenbendazole is more likely to be effective. However, we cannot predict exactly how his tumors will respond to the treatment. The effectiveness of Fenbendazole depends on many factors, such as your husband’s overall health, immune system, body’s response to treatment, and the stage and aggressiveness of the cancer.
We also recommend taking Milk Thistle along with Fenbendazole to help protect your husband’s liver. Be sure to regularly monitor his overall health and check his liver enzyme levels to avoid any additional strain on his liver.
Dear Maggie,
Fenbendazole is available as a liquid, powder, or capsule. You can choose the most convenient form for you. We recommend that you view our recommended list of trusted suppliers, which can be found here: https://www.fenbendazole.org/suppliers/
To determine the correct dose, simply enter your body weight into the dose calculator and select “Parasites” under “Fenbendazole for”. The calculator will then determine the best dose and schedule for you. You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you have any further questions, please feel free to contact us. We will be happy to help you.
My husband has BRCA1 gene and prostate cancer. We had surgery in 2019, radiation in 2021 and now PSA is going up. We found Joe Tippins story a few months ago and are beginning the protocol. Has anyone with the BRCA1 gene seen success ~ we are so hopeful and excited as the chemistry of how this works makes sense. Thanks for giving cancer patients hope.
Dear Beth,
The use of fenbendazole in cancer treatment, including prostate cancer, is an area of growing interest. While numerous reports and some preclinical studies suggest that fenbendazole may have anticancer properties, its efficacy, especially in individuals with a BRCA1 gene mutation, is not yet sufficiently supported by clinical trials.
Many individuals have reported positive results using fenbendazole as part of their cancer treatment regimen. These personal testimonials indicate improvements in symptoms, quality of life, and in some cases, tumor shrinkage.
Some preclinical studies in prostate cancer have shown that fenbendazole can inhibit cancer cell growth and promote apoptosis (cell death). Additionally, fenbendazole may have anti-inflammatory and immunomodulatory effects that could enhance the body’s ability to fight cancer.
Regular monitoring of health, including liver enzyme levels and overall well-being, is essential when using fenbendazole.
Dear Cheryl,
We recommend discontinuing fenbendazole 24-48 hours prior to your CT scan. This is because fenbendazole is typically eliminated from the body within one to two days after cessation. It is important to stop taking it because contrast agents, such as dyes or radioactive glucose, are often used during tomography. Cancer cells consume significantly more glucose than normal cells, so these contrast agents highlight areas of cancer activity in the resulting images. However, fenbendazole inhibits glycolysis and slows down cancer metabolism, which can lead to inaccurate imaging results. This could cause the images to misrepresent the actual state of the cancer.
Hello Teresa,
Panacur C comes in various concentrations. For example, a 1 gram (1000 mg) packet typically contains 222 mg of active fenbendazole. To measure 222 mg from Panacur C packets, first determine the packet’s concentration. For a 1 gram packet, use the entire packet. If a packet contains 444 mg of fenbendazole in 2 grams of powder, use half the packet to get 222 mg.
What if a patient cannot tolerate it by mouth? What are other ways to administer this medication? She is super nauseous and can’t keep anything down. Tumors wrapping around her small intestine. Wondering about absorption issues…
Hello Christie,
If a patient cannot tolerate fenbendazole orally, alternative administration methods include rectal suppositories, topical formulations, feeding tube delivery, injectable forms, and compounded formulations such as liquids or gels.
Dear Richard,
We recommend stopping fenbendazole two days before, during, and two days after chemotherapy.
This precaution helps to reduce the extra load on the body and liver during this period. Stopping medication during chemotherapy sessions can reduce the risk of adverse interactions and give your body a better chance of coping with the stress of treatment. However, it is important to note that this is a general recommendation, and the final decision should be made by you based on your specific circumstances and treatment plan.
Hello:
When doing a Fenbendazole protocol, are there any contra-indicators for also using Chagga mushrooms or other strong anti-oxidents? I suppose the real question might be, is Fenbendazole an anti-oxident?
Hello Bob,
Fenbendazole is not classified as an antioxidant. However, antioxidants such as chaga mushrooms are well-known for their ability to neutralize free radicals and reduce oxidative stress in the body. These antioxidants can support overall health and potentially enhance the effectiveness of other treatments by mitigating oxidative damage.
Although fenbendazole does not function as an antioxidant, combining it with chaga mushrooms or other antioxidants is generally considered safe. There are no well-documented contraindications or adverse interactions between fenbendazole and chaga mushrooms or other antioxidants.
As with any combination of supplements and medications, it is important to monitor for any adverse effects. Regularly checking your health and undergoing blood tests can help ensure that everything remains within normal ranges and that no unexpected issues arise. By staying vigilant and informed, you can safely benefit from the combined use of these treatments.
Dear Ray,
The effectiveness of fenbendazole is not dependent on its form, whether liquid, powder, or capsules. You can choose the form that is most convenient for your dosing needs and the most cost-effective for you.
Thank you for this amazing resource. Iam most grateful.
Also, is there any reactions if Fenbendazole is taken with a course of Methylene Blue or if there’s any contraindications for both to be taken together ?
Dear Pash,
Although no specific evidence indicates direct contraindications between fenbendazole and methylene blue, caution is advised due to potential hepatic metabolic interactions. Both drugs are metabolized in the liver, potentially altering blood levels of one or both drugs. Methylene blue can inhibit monoamine oxidase (MAO), affecting the metabolism of similar drugs. Concurrent use may increase the risk of hepatotoxicity or other side effects. Regular monitoring of liver function and overall health is recommended when taking these medications together.
Hello Sherry,
Research into the potential use of fenbendazole in humans, especially for cancer treatment, is ongoing and has shown promising results in preclinical studies. Fenbendazole has demonstrated significant anti-cancer properties across various cancer types. For instance, it has been effective in inhibiting the growth of prostate cancer cells by disrupting the formation of microtubules and causing cell cycle arrest. Similar outcomes have been observed in pancreatic cancer studies, where fenbendazole slowed tumor growth in animal models.
The drug works by disrupting the structure of cancer cells, akin to its effect on parasites. It collapses cellular microtubules, which are crucial for cell division and nutrient transport, effectively inducing cell death and reducing tumor size in several types of cancer cells in vitro.
Some studies have explored the synergistic effects of fenbendazole when combined with other cancer treatments. For example, enhanced anticancer effects were observed when fenbendazole was used alongside traditional chemotherapy agents like paclitaxel.
Although there are reports and small-scale studies showing positive results in cancer patients using fenbendazole, extensive clinical trials are still needed to establish its efficacy in humans. Many individuals have shared stories of complete recovery from cancer using fenbendazole, but these cases often go undocumented because they are self-administered without medical supervision and are not part of formal studies.
Hello,
What is the purpose or reason for the CBD oil? Will not using it have a negative effect on the protocol? I work in transportation and popping positive on a random will ruin my career. No one will care why or what I was doing. It’s just the way things are when the federal government is involved in your work.
Hello Joel,
CBD is not a mandatory part of the protocol, and its absence will not significantly affect the effectiveness of the treatment. The primary drug in the protocol is fenbendazole, while the other supplements are only recommended.
In some countries, CBD (cannabidiol) is completely banned, regardless of its source or THC content. If you are in Russia, the United Arab Emirates, Saudi Arabia, Malaysia, Indonesia, or Singapore, do not use CBD as it is illegal. If you live or work in other countries, it is crucial to research and understand the specific regulations regarding CBD in those countries. This will help you avoid legal issues and ensure compliance with local laws.
What can it and can’t it kill in the human body as it pertains to parasites. I have a son with Eosinophilic Esophagitis. I am hoping the he is one of the cases that are related to parasites.
Dear Amber,
Fenbendazole works by disrupting microtubule formation in parasitic cells, which is essential for their survival and reproduction. In humans, it can kill parasitic worms such as roundworms (Ascaris), hookworms, whipworms (Trichuris), and tapeworms. Emerging research suggests potential anticancer properties, showing it may interfere with cancer cell growth and reproduction. However, fenbendazole cannot kill bacteria, viruses, fungi, or protozoa. There is no strong evidence or medical recommendation for using fenbendazole to treat eosinophilic esophagitis (EoE), which is usually treated with diet, PPIs, topical steroids, and elimination diets.
Hi have colorectal cancer that has been absent from colon for 3 years via Cymo and surgery. However it spread to liver 2 years ago.
CT Oblation surgery has held it but now appears I’m running out of options.
I have read heaps about dog and horse wormers having some good results. I have horses and dogs and can get access to both from the feed store.
I struggle to get some direction on dosage and period of treatment times.
I’m only 57 and wish to see some grandkids, please advise your dosage rates, 🙏 would be much appreciated .
Dear Michael,
Use our dose calculator to choose the right dose and schedule based on your body weight. If you have any difficulties with dose calculations, we are here to help you. You can find the dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Given that the cancer has spread to the liver, fenbendazole should be used with caution. We recommend that you constantly monitor your general health and check your liver enzymes as often as possible.
Hello Luljete,
There is no substantial evidence or medical consensus to suggest that fenbendazole is effective in treating Candida albicans, a type of fungal infection.
Candida albicans infections, commonly known as candidiasis, are typically treated with antifungal medications such as fluconazole, itraconazole, or nystatin. If you suspect a Candida infection, it is important to consult with a healthcare professional for proper diagnosis and treatment. Self-medicating with fenbendazole for this purpose is not advisable and could delay effective treatment.
My husband is on Eliquis(blood thinner) and it seems all supplements suggested he can’t take suck as milk thistle, tudca, curcumin etc. Is there a supplement he could take with the fenben to help with his liver? Thank you
Dear Elizabeth,
When taking Eliquis (apixaban), it is important to be cautious with supplements due to potential interactions. Many supplements, such as milk thistle, TUDCA, and curcumin, can increase bleeding risk or reduce the effectiveness of the drug. For safer liver support, consider the following options: N-Acetylcysteine (NAC), which increases glutathione levels; S-Adenosylmethionine (SAMe), known for supporting liver health; Alpha-Lipoic Acid (ALA), an antioxidant aiding in detoxification; probiotics, which improve gut health and indirectly benefit the liver; and dietary adjustments, emphasizing fruits, vegetables, whole grains, and lean proteins. Regular blood tests are essential to monitor for any adverse interactions or effects on liver function while using these supplements with Eliquis.
Are there particular types of cancer that have more success with Fenbendazole? Are there types of cancer that are less likely to respond to this treatment protocol? Where can I find data/info/preprints on this? Thank you so much for making this information available! What a blessing in a world gone mad, with some even feeling it is right and just to repress “misinformation”-you know, ie: tomorrow’s innovations and discoveries…..
Hello Corrine,
Fenbendazole is extensively used in treating various types of cancer, and most patients experience a positive response to the treatment. However, there is no definitive scientific evidence indicating which types of cancer may respond better or worse to fenbendazole. Cancer is a complex disease with numerous subtypes, and treatment responses can vary due to several factors, including cancer type and stage, genetic makeup, general health, and other individual characteristics.
You can find interesting treatment cases by clicking on this link: https://www.fenbendazole.org/category/case-reports/
You may also find these documents and clinical trials interesting: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-papers-and-clinical-trials/
Dear Jose,
Yes, the percentage of Fenbendazole (18%) refers to the concentration of the active ingredient in the formulation, which is consistent regardless of the country. An 18% Fenbendazole formulation means that 18% of the total weight of the product is Fenbendazole.
For dosing, you will need to adjust according to the concentration. For example, if you need a dose of 222mg of Fenbendazole and you have an 18% formulation, you can calculate the total amount of the product required to get the desired dose.
You would need approximately 1233mg of the 18% Fenbendazole product to get a 222mg dose of the active ingredient.
Hi I have had a skin cancer (squema cell) removed once a year for the last 3 years. My question is which protocol would I follow? I haven’t been diagnosed with cancer by an Oncologist, however I have had my dermatologist surgically remove skin cancer via biopsies.
Which Protocol to follow?
•always cancer free
Or
•prevent relapse
ThankYou,
Shannon Waters
Dear Shannon,
We recommend using our dose calculator. Select “Cancer” under “Fenbendazole for” and choose “Cancer prevention protocol” under “Protocol.” Enter your body weight as well. The calculator will provide the appropriate dose and schedule for cancer prevention, which is: Take fenbendazole once daily for 3 consecutive days (Monday-Wednesday), then take a break for the remaining days (Thursday-Sunday). Repeat this cycle every week.
You can access all this information in our dose calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
My brother has been diagnosed with bladder cancer, he had 10 Infusions (the max they give in Ireland) it has spread to the kidneys and lung, can he take fenbendazole, and can panacure contain enough, or do I use only fenbendazole,
Hello Martin,
There is considerable evidence and some preliminary research suggesting that fenbendazole has anticancer properties. However, while fenbendazole may be beneficial for your brother, it should be part of a comprehensive treatment plan to ensure his best possible care and safety.
Panacur is the brand name for fenbendazole, containing the active ingredient fenbendazole. The concentration and formulation can vary, so it is important to check the dosage. You can find the correct dose and schedule for your brother by following this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you are using Panacur, be sure to adjust the dose accordingly to match the amount of fenbendazole.
Regular blood tests and medical examinations are necessary to monitor the effectiveness of the treatment and any possible side effects.
Hello Vernon,
Although fenbendazole is usually safe and well-tolerated, there is a rare risk of increased side effects when combined with blood thinners. To reduce this risk, it is important to have regular blood tests to monitor blood clotting and liver function, ensuring both medications are safe to use together.
Watch for unusual symptoms such as increased bleeding, bruising, or signs of liver problems (like jaundice or dark urine). Adhere strictly to the prescribed dosing schedule for all medications and avoid making any changes to the dosage on your own.
Hello,
I have metastasized melanoma, mainly in my liver. ASAT and ALAT figures were way up.
At this moment I use protein blockers which seem to keep it under control (asat/alat normal since 2 months).
Is it advisable to take fenbendazole in my case (as the liver has to work hard).
I use several natural products; THC oil, wormwood, amla, msm, lineseed, nigella sativa.
Can they still be used in combination?
Hello Henk, thank you for your question.
Fenbendazole is generally safe and well-tolerated. However, since it is metabolized in the liver, it may stress an already compromised liver. Although your AST and ALT levels have returned to normal, indicating stable liver function, caution is still necessary.
Regularly monitor your liver enzymes and other key markers to ensure your liver stays healthy. The supplements you are currently using seem generally safe and are unlikely to cause side effects when combined with fenbendazole.
Additionally, consider adding Milk Thistle to your regimen to help maintain liver health and protect against elevated liver enzymes.
Dear Barbara,
Fenbendazole is extensively utilized in the treatment of various cancers, including multiple forms of breast cancer. Its application has shown promising results and has been embraced by many as a complementary approach to traditional cancer therapies.
For those interested in learning more, several breast cancer treatment case reports are available that highlight the experiences and outcomes of patients who have used fenbendazole in their cancer treatment regimen. You can find these insightful stories and detailed reports here: https://www.fenbendazole.org/triple-negative-breast-cancer/ https://www.fenbendazole.org/case-report-metastatic-breast-cancer-83-female-2/
These cases provide valuable information on how fenbendazole has been integrated into cancer care, offering hope and potential guidance for others facing similar health challenges.
Hello Carolyn,
Yes, fenbendazole is often used to treat cancer in dogs. Use the link below to calculate the correct dosage and schedule. https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Regarding the combination of Simparica Trio and fenbendazole, there are generally no known adverse interactions. However, it is important to be cautious when giving multiple medications to your pet. Monitor your dog for any unusual symptoms or side effects when starting a new medication, such as gastrointestinal upset, behavioral changes, or signs of an allergic reaction.
Ensure each drug is administered in the correct doses and at the appropriate times to reduce the risk of potential side effects and interactions. Regular veterinary check-ups are essential to monitor your dog’s health and the effectiveness of the treatment. Blood tests and other diagnostic measures can help ensure your dog stays healthy while on these medications.
Can you take digestive enzymes while taking Fenben? My son (17) will begin a protocol for Lyme (and any co-infections) soon. It calls for FenBen 5 days out of 30. He has trouble absorbing food and has a “slow gut”. He’s been taking digestive enzymes and they’ve helped him immensely. I’d prefer to keep him on those as he goes through the protocol. Just wanting to make sure they won’t affect the potency or effectiveness of the Fenben. Thanks!
Dear Heather,
Yes, your son can take digestive enzymes while using fenbendazole. There are no known negative interactions between these two substances.
My wife, Corinna, has been diagnosed with Stage III Pancreatic Cancer. She has undergone chemotherapy and had a “whipple” procedure to remove the tumor. At this point she is “cancer free” according to her latest scan, but we have been warned about this cancer’s high recurrence rate. We are looking for a prophelactic protocol to assist with the possible recurrence, but I am concerned about the impact these substances may have given my wife’s compromised gastrointestinal system (no gall bladder, no bile duct, reduced liver, pancreas, stomach and small intestine). Are you aware of any information that may be helpful in this regard? Thank you for your assistance.
Hello Pete,
Given your wife’s complex medical history and multiple gastrointestinal surgeries, including the Whipple procedure, caution is essential when considering any new treatment, including fenbendazole.
Due to her gastrointestinal condition, it is crucial to carefully monitor for any possible side effects. While fenbendazole is generally considered safe, its effects on individuals with extensive medical histories are less clear. Watch for any signs of gastrointestinal distress or other adverse reactions.
We recommend using a dosage calculator to determine the correct dose and schedule. This tool can help ensure she takes the appropriate amount for her condition.
You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Regular medical check-ups are vital to monitor her overall health and detect any early signs of cancer recurrence or other complications.
In addition to fenbendazole, a holistic approach to health, including a balanced diet, regular exercise, and other supportive treatments, may be beneficial. Consult a nutritionist or specialist to ensure her diet supports her compromised digestive system.
Hello Cheryl, thanks for the great question!
It is sometimes recommended to use a binding agent, such as activated charcoal, alongside antiparasitic medications to help bind and remove toxins released as parasites die. However, this practice is not universally required or advised for all antiparasitic treatments, including fenbendazole. Activated charcoal is known to bind many substances, including medications, and can reduce their effectiveness. Taking activated charcoal with fenbendazole may interfere with the absorption and effectiveness of fenbendazole. If you decide to use activated charcoal, consider taking it at a different time than fenbendazole to minimize the potential for interactions.
Hello Pash,
The fenbendazole protocol can be found by clicking on this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
You will need to enter your body weight and select the purpose for which you will use the drug: cancer treatment, anti-cancer use, or parasite treatment. The calculator will help you determine the correct fenbendazole dose and schedule. You will also be able to view Joe Tipp’s standard protocols at the bottom of the calculator.
Dear Austin,
The absorption of fenbendazole can be significantly increased when taken with food, especially with fat. Fenbendazole is a lipophilic compound, meaning it is more easily absorbed into the bloodstream with dietary fat. Taking it with a fatty meal improves its bioavailability, ensuring more of the drug is absorbed, making it more effective.
If you cannot eat fatty foods, consider other options to improve absorption, such as healthy fats like avocado, nuts and seeds, olive oil, or nut butter. Combining fenbendazole with protein-rich foods, such as eggs, lean meats, dairy products (if tolerated), or legumes, can also help. You can mix these ingredients into a smoothie for easier consumption, such as one with avocado, nuts or seeds, and protein powder.
We hope this information is useful to you.
Dear Corazon,
Fenbendazole can be effective in treating various types of cancer, including blood cancers. However, its effectiveness varies greatly among individuals and depends on several factors, such as the patient’s overall health, immune system, cancer response to treatment, and the stage or aggressiveness of the cancer. In many cases, fenbendazole can significantly slow down the disease’s progression or even halt the cancer entirely.
I want protocol of fenben for osteosarcoma case metastatic to lung
Age 18 years old
Weight 80
Previous treatment Chemo
But now nexavar and I want to know if there is any interaction between nexavar and fenbendazole
Hello Tamer,
There is no specific information on the interaction between Nexavar (sorafenib) and fenbendazole. However, both drugs are metabolized in the liver, which means that taking them together may increase the risk of liver toxicity or other side effects. When using these drugs together, regular monitoring of liver function and general health is recommended.
Your body weight requires 222 mg of Fenbendazole per day, 6 days per week. Make sure you are taking the correct dose and following the correct schedule. We also recommend adding Milk Thistle to your protocol to help support your liver. You can check the schedule and dosage using our dosage calculator below: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Dear Jean,
For your body weight, you need to take 222 mg of Fenbendazole per day. To determine the amount of Safeguard liquid needed to achieve this dose, you need to know the concentration of fenbendazole in the liquid. Safeguard liquid from Merck typically contains 10% fenbendazole, meaning 1 ml has 100 mg of fenbendazole. Therefore, to get a 222 mg dose, you would need to drink 2.22 ml of Safeguard liquid.
On your dosage calculator I noticed that there is a huge difference between treating a cat and a dog. I want to try and treat my cat for cancer using Panacure C. My cat weighs almost 15 pounds and your calculator recommends 444mgs, but for a dog that same 444mg dosage doesn’t start until 34 pounds which is more than double the weight of the recommended cat dosage. Is this correct?
Dear Tom,
Your point is correct, and it is important to understand that dosage recommendations can vary greatly between species due to their unique metabolic and physiological differences.
The recommended dose for a 15-pound cat is 444 mg of fenbendazole. On the other hand, for a dog of the same weight (15 pounds), the dose is 222 mg. These differences are due to the way cats and dogs metabolize and respond to medications differently.
Although this may seem confusing, it is encouraging that these recommendations are made to ensure the safety and effectiveness of treatment for each specific animal.
If you have more questions or need additional help, please do not hesitate to ask!
Hello Jeff,
For a dog of the specified weight, the recommended dosage is 444 mg of Fenbendazole per day. Administer this dosage once daily for four consecutive days. After this, do not give Fenbendazole for the following three days. This cycle should be repeated every week.
You can find all this information and more using our dose calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Dear Debbie,
When it comes to making decisions about treatment options, it is important to consider all available information and choose what feels best for you. While we can not make this decision for you, it is empowering to know that each patient can select the treatment method that suits them best.
Chemotherapy is a well-established treatment with proven effectiveness. However, some patients are exploring off-label treatments like fenbendazole and have found promising results.
Ultimately, the choice is yours, and we encourage you to discuss all options with your healthcare provider to make an informed decision that aligns with your needs and preferences.
Dear William,
Thank you for your question regarding fenbendazole and its potential treatment for bladder cancer. Fenbendazole is being explored for its anti-cancer properties and has shown promise in preclinical studies.
The mechanism of action for fenbendazole involves disrupting microtubule function, which is essential for cell division and growth. By interfering with these processes, fenbendazole can inhibit the growth and proliferation of cancer cells. Additionally, it can inhibit glucose uptake in cancer cells, effectively starving them of the energy needed to grow and multiply.
There have been many success stories from patients using fenbendazole to treat various types of cancer, including bladder cancer. Some patients have reported reductions in tumor size and improvements in their condition while using fenbendazole as part of their treatment regimen.
You can find one such case report here: https://www.fenbendazole.org/case-report-bladder-cancer/
If you are considering fenbendazole for bladder cancer, it is important to follow a consistent protocol and regularly monitor your health and progress.
Hello John,
A person of the specified weight should take 444 mg of fenbendazole per day with or after a meal. The dosage depends on body weight, and the treatment schedule depends on the purpose of the treatment. Therefore, we recommend using our dosage calculator to determine the exact dose and schedule of fenbendazole. You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Can you Curcumin if you are on blood thinners? I think there is an issue with Turmeric and blood thinners. I want my dad to do the protocol but I know he is currently on Eliquis
Hello Sandy,
Curcumin, found in turmeric, has blood-thinning properties that might interact with blood thinners like Eliquis (apixaban). Combining them could increase the risk of bleeding. If considering adding curcumin to the regimen, it is crucial to monitor your dad’s health closely, including regular blood tests, to check for any adverse effects. This careful monitoring will help ensure that any potential issues are detected early.
Hello Sarah,
Thank you for your question regarding the use of fenbendazole for treating Myelodysplastic Syndromes (MDS). Fenbendazole is being researched for its potential anti-cancer properties, but its effectiveness in treating MDS specifically is not well-documented. This would be considered an experimental treatment, as we currently do not have substantial information or clinical studies confirming its efficacy for MDS.
Fenbendazole works by disrupting microtubule function and inhibiting glucose uptake in cancer cells, which may have beneficial effects. However, since MDS involves poorly formed or dysfunctional blood cells, it is uncertain how fenbendazole might affect this condition.
If you are considering fenbendazole as a treatment option for MDS, it is crucial to do so under careful monitoring. Regular health checks and blood tests are essential to ensure safety and to gauge any potential benefits.
Please weigh the potential risks and benefits, and consider all available treatment options.
Dear Mimi,
Fenbendazole is being explored for its anti-cancer properties, and it may offer benefits for multiple myeloma.
Fenbendazole disrupts microtubule functions essential for cell division and growth, which can hinder the proliferation of cancer cells. Additionally, it can block glucose uptake in cancer cells, depriving them of the energy needed to grow and multiply.
Although there are no definitive studies specifically targeting multiple myeloma, the mechanisms by which fenbendazole acts on cancer cells suggest it could be beneficial for this disease. Following a consistent protocol and monitoring your health regularly is crucial if you decide to incorporate fenbendazole into your treatment regimen.
Many patients have shared positive experiences using fenbendazole for different types of cancer. You might find it helpful to read about a case report of a patient with stage 4 melanoma who experienced significant improvements: https://www.fenbendazole.org/melanoma-stage-4/
Dear Bill,
CBD serves as an additional component to the protocol, offering its own benefits rather than being the primary medication.
CBD oil can have a calming or sedative effect on some individuals, which can help improve sleep quality. Therefore, taking it at night can be advantageous for those who experience relaxation and better sleep from CBD. Quality rest is crucial, especially for a body fighting a serious illness like cancer.
We also want to emphasize the importance of regularly monitoring liver enzymes and overall health when using fenbendazole and other supplements.
Dear Kim,
The combination of fenbendazole and ivabradine has not been extensively studied. While there’s no specific evidence of harmful interactions between the two, it is always wise to be cautious when combining medications. The effects of each drug on the body can be complex, and their interactions might lead to unexpected side effects.
If you are considering taking fenbendazole with ivabradine, it is crucial to monitor your health closely. Regular blood tests and vigilance for any unusual symptoms are important to ensure your well-being.
Hello,
Both medications belong to the benzimidazole group. Mebendazole is typically prescribed for humans, while fenbendazole is mainly used in veterinary medicine. However, there is growing interest in fenbendazole for its potential anti-cancer properties. Some studies suggest it can disrupt cancer cell growth, reduce their glucose uptake, and boost the immune response against cancer cells.
Determining which medication might be more effective for your specific condition is challenging, as it depends on many factors, including the type and stage of the disease, your overall health, and how your body responds to treatment. The choice of treatment is ultimately up to you, and it is important to consider all available information to understand the potential benefits and risks.
Dear Barbara,
It is generally advised not to take fenbendazole two days before, during, and two days after chemotherapy. This caution helps to prevent potential drug interactions and reduce any additional stress on your body during treatment. Since Xeloda is typically taken twice daily for 14 days followed by a 7-day break, this schedule only allows for three days of fenbendazole use. Unfortunately, this brief duration is unlikely to provide significant therapeutic benefits.
If you choose to use fenbendazole during your chemotherapy cycles, it is crucial to monitor your health very closely. Regular blood tests are necessary to ensure there are no adverse interactions and to maintain your overall health. Ultimately, the decision is yours, and it is important to carefully consider the potential benefits and risks.
Hello Steven,
The appropriate dose of fenbendazole is based on your body weight. Taking a higher dose than necessary for your weight does not increase the effectiveness of the treatment. In fact, it could lead to unnecessary strain on your body, particularly your liver, which is responsible for metabolizing the medication.
Using a dose calculator is essential to determine the correct amount of fenbendazole you should take. This calculator considers your body weight and provides a precise dosage and schedule that optimizes the treatment’s effectiveness while minimizing potential side effects. Adhering to the calculated dose ensures that you receive the maximum benefit from the treatment without overburdening your system.
If you consume a dose higher than what is recommended for your weight, you might not achieve better results. Instead, you could experience adverse effects that can be avoided by following the tailored dosage plan. Therefore, it is crucial to use our dose calculator to get a personalized treatment plan and stick to the calculated schedule and dose.
By following the appropriate dosage based on your body weight, you can ensure a balanced approach that maximizes the therapeutic benefits of fenbendazole while maintaining your overall health and safety.
You can find the dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Thank you for sharing your knowledge. As a healthy person, I’m interested in using Fenben as a parasite cleanse. Would I use the same protocol you outline in cancer prevention? I have the packets I purchased from a pet supply company. Also, I’d like to give it to my cat – about 10 pounds, could you recommend how much/how often/how long?
Dear Ria,
For the best and safest results, we recommend using our dose calculator, which you can find at the following link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
This tool will help you determine the appropriate dosage based on your specific needs.
For your cat, who weighs about 10 pounds, the dose calculator will also provide guidance on the correct dosage and administration schedule. It is crucial to follow these recommendations to ensure the safety and effectiveness of the treatment.
I have stage 4 rcc with Mets to femur tibia lung adrenal gland. I have one kidney and my creantine levels is always good. I had 5 cycles of immunetherapy with little success. Is fenben 222 daily ok to take. And does tumeric taken to help liver detox
Dear David,
Depending on the complexity of the disease and favorable creatinine results, you can use a daily dose of 222 mg of fenbendazole. However, regular blood tests are necessary, particularly to monitor markers of kidney function such as creatinine, and to ensure that liver enzymes remain within safe limits.
Turmeric, which contains curcumin, and milk thistle are recognized for their ability to support liver health. Curcumin’s antioxidant properties can help alleviate oxidative stress in the liver, and its anti-inflammatory effects can reduce inflammation, thereby supporting overall liver function and detoxification processes. Rich in silymarin, milk thistle has been shown to promote liver cell regeneration and improve the liver’s ability to process toxins.
Adding these natural supplements to your wellness regimen can complement your ongoing treatment strategy.
Hello Brent,
You are correct that Fenbendazole is primarily used for cancer treatment in humans but has also demonstrated effectiveness in dogs. The appropriate dosage for your pet depends on its weight, making accurate calculation essential. To determine the correct dosage and schedule tailored to your dog’s needs, we recommend using our dosage calculator. Here is the link to access it: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello David,
Thank you for your question about using fenbendazole with Tagrisso (osimertinib).
There is limited scientific data on their interaction, but here are some important considerations:
Both drugs can affect liver function, increasing the risk of liver toxicity. Regular blood tests are essential to monitor liver enzymes.
Be alert for new or worsening side effects. Tagrisso can cause diarrhea, rash, and interstitial lung disease, while fenbendazole may cause gastrointestinal discomfort and liver enzyme changes.
Watch for cumulative toxicity, especially overlapping side effects on the liver and gastrointestinal tract.
If you decide to add fenbendazole, start with a lower dose and gradually increase it to monitor for adverse reactions.
Consider using liver-protective supplements like milk thistle.
Combining these treatments requires caution and close monitoring. If you have tolerated Tagrisso well, fenbendazole should be added gradually and with careful monitoring of your body’s responses.
Are there other benefits from that fenbendazole? Anti-cancer benefits are enough but I was wondering if it is helpful in treatment of hypertension or diabetes.
Hello Janna,
Fenbendazole has recently garnered interest for its potential benefits beyond its anti-parasitic properties, particularly in cancer treatment. However, its efficacy and safety in treating conditions like hypertension or diabetes have not been extensively studied or established in human clinical trials.
The mechanisms by which fenbendazole might exert anti-cancer effects, such as disrupting microtubule formation and interfering with glucose uptake in cancer cells, are distinct from the mechanisms involved in managing hypertension or diabetes. Therefore, while fenbendazole shows promise in certain areas of oncology, its potential for treating other medical conditions would require rigorous scientific investigation to confirm any beneficial effects.
Hello Osman,
The use of Fenbendazole during pregnancy is not recommended due to limited safety data and potential risks to the developing fetus. Conducting studies on medication safety during pregnancy involves ethical and practical challenges, making it difficult to gather comprehensive data. Therefore, healthcare providers typically advise against using Fenbendazole while pregnant to avoid potential harm to both the mother and the unborn child.
Hello,
Thank you for your question. When taking fenbendazole, you can expect it to work on a variety of levels. Originally developed as an anti-parasitic medication for animals, fenbendazole effectively targets and eliminates worms and parasites by disrupting their cellular processes. If you have parasitic infections, fenbendazole can help remove these organisms from your body. You may notice these organisms being expelled from your body, particularly in your stool. This might be visible in some cases, but not always, depending on the type and size of the parasites.
In addition to its anti-parasitic properties, some evidence and studies suggest that fenbendazole may also help in inhibiting cancer cell growth. Patients have reported positive outcomes, especially when used as part of a broader treatment protocol. As your body responds to fenbendazole, you might experience “die-off” symptoms (also known as a Herxheimer reaction) if you have a significant parasitic load or cancer cell death. These symptoms can include flu-like feelings such as body aches, chills, and nausea. These reactions are generally temporary and indicate that the treatment is working.
It is important to monitor your health and well-being closely while taking fenbendazole. Regular blood tests to check liver function (ALT, AST, and bilirubin levels) will help ensure the treatment is well tolerated. Supplementing with silymarin (milk thistle) can support liver health and help mitigate any potential liver stress from the treatment.
You can look forward to improved health and well-being as parasitic infections are cleared, and potentially a reduction in cancer cell growth if you are using fenbendazole as part of a cancer treatment protocol. Relief from symptoms caused by parasites or cancer is also a possibility.
Hello Karen,
Thank you for your question. When considering the use of fenbendazole during radiotherapy and chemotherapy, it is generally recommended to stop taking fenbendazole two days before, during, and two days after your chemotherapy or radiotherapy sessions.
The reason for this recommendation is to minimize potential interactions between fenbendazole and your cancer treatments. Chemotherapy and radiotherapy are powerful treatments designed to target and kill cancer cells, but they can also stress your body and liver. Fenbendazole is metabolized by the liver, and taking it concurrently with these treatments could potentially increase the strain on your liver and interfere with the efficacy of your chemotherapy or radiotherapy.
By pausing fenbendazole use around the time of your treatments, you allow your body to process and recover from the chemotherapy or radiotherapy without additional stress. This approach helps ensure that your primary cancer treatments are as effective as possible while minimizing potential side effects.
Hello Jeremy,
Thank you for your inquiry. Fenbendazole is commonly utilized for treating various types of cancer, including metastatic renal cell carcinoma. You might find it insightful to review this case study available at https://www.fenbendazole.org/renal-cell-carcinoma/.
Predicting how Fenbendazole will specifically impact your condition is challenging due to the variability in treatment response influenced by factors such as cancer aggressiveness, individual response to therapy, immune system function, and overall health.
As of now, there are no reported interactions between Fenbendazole, Cabometyx, and Opdivo. Nonetheless, if you opt to use these three medications concurrently, it is prudent to exercise caution and maintain regular monitoring of your health, including periodic checks of liver enzymes and overall blood parameters.
Additionally, you may wish to consider incorporating Milk Thistle into your treatment regimen as it supports liver health.
Should fenbendazole be stopped prior to having a PET scan so the results of the scan are not skewed? If yes how long before the scan should it be stopped?
Hello Judy,
Yes, we recommend stopping fenbendazole 2 days before the PET scan to ensure the results are not skewed. This precaution helps to ensure the most accurate imaging results.
Can Fenbendazole cause your liver, angles and feet to swell? could this be a side effect?
If so what should be done? Dose taken is 1 in the morning and 1 in the evening with a
fatty meal with no breaks. Been diagnosed with stage 4 liver cancer.
Hello. Liver cancer itself can lead to symptoms such as liver enlargement (hepatomegaly) and fluid accumulation in the abdomen (ascites), which may contribute to swelling in the ankles and feet. It is important to make pauses in your fenbendazole protocol, so that liver has time to restore. Meantime you should still be taking milk thistle for your liver. We would suggest to take a break for at least 4-7 days.
My beautiful 4 year French bulldog has been diagnosed with large cell lymphoma cancer stage 3. We just got the biopsy and the vet said because of how aggressive this cancer is, he has asked us to prepare for the worst in 3 weeks. The current symptom was pneumonia where he has short breaths.
We are not going to give up. I have managed to get hold of Fenbendazole +Ivermectin through
Fen-iverquantel-paste.
All I want is advice on the dosage for my dog. He is currently 13.8kgs. Your calculator says 222mg per day. Is that sufficient for stage 3 cancer as well or should I double it to 444mg?
Dear Netesh,
Thank you for sharing your French Bulldog’s situation. We know how difficult this must be, and we admire your determination to help him.
A daily dose of around 222 mg for a 13.8 kg dog is generally suitable, but if he tolerates it well without digestive or liver issues, the dose can be increased to 444 mg for more advanced cases. Fenbendazole should be given once daily with food that contains some fat, to improve absorption.
Since our focus is specifically on fenbendazole, we cannot provide dosage guidance for ivermectin, but many owners choose to use both carefully and observe their pet’s response. We wish your dog strength and comfort as you continue his care.
Dear Barb, thank you for a great question!
Vitamin E plays a crucial role in supporting immune function. Adequate vitamin E levels are necessary for the proper functioning of immune cells, including T cells and B cells, which play essential roles in the body’s defense against infections and cancer. By supporting immune function, vitamin E may help enhance the body’s natural ability to fight cancerous cells.
Also anti-inflammatory effects: Vitamin E has anti-inflammatory properties that may help reduce inflammation in the body. Chronic inflammation has been linked to the development and progression of cancer, so reducing inflammation may help create a less favorable environment for cancer growth and metastasis.
Vitamin E may enhance the anticancer effects of fenbendazole when used together.
Hi, we have heard alot about ivermectin and fenbendazole, also against lungcancer, my mom is in stage 4. Also in the bones. Here in our country not so much people heard about it.
The big question is for us is it possible to give her that because she uses bloodthinner 2 times a Day. I have read with ivermectin it is dangerous. She can’t stop with bloodthinner because she was almost gone with stopping bloodthinner. Is it possible to give fenbendazole with bloodthinner?
Hello, Rianne, thank you for a great question!
Fenbendazole itself is not a blood thinner. One important detail: fenbendazole is often used together with vitamin E, and vitamin E does have blood-thinning effects. If your mom is on anticoagulants, this needs to be taken into account and vitamin E may need to be avoided or used very cautiously. Stage 4 disease is complex and responses are very individual.
My freinds son (30 years old) has brain cancer ten years ago. He has had operations to remove the cancer, but it has come back recently. I’m not sure what they are going to do next, but can he start using fenbendazole during any (or type) of medical treatments.
Hello Stephen, thank you for your question.
Fenbendazole is commonly used by some people as a supportive option alongside conventional treatment, and in many cases it can be integrated thoughtfully with medical care. The key factor is timing. It is generally recommended to pause fenbendazole two days before chemotherapy or radiotherapy, avoid it during treatment days, and resume two days after treatment ends. This allows active treatments to proceed without added metabolic stress.
Outside of chemotherapy or radiotherapy windows, fenbendazole is often used during rest or recovery periods, when the body has greater capacity to tolerate supportive approaches. Many people choose to start gently and adjust frequency based on individual tolerance.
Even in complex situations such as brain tumors, a careful, step-by-step approach can be taken.
We hope this brings some reassurance and clarity, and we wish your friend’s son strength and the best possible outcome.
on jan 2020 had melanoma stage 4. had 2 major surgeries.and 10 months of keytruda i was taking curcumin and a few vitamins with i. was cancer free until july 2024.i had a metastatic melanoma 11mm in my left lung had heard about fenben started taking it immediately 222mg 6 days a week. started opdivo and yervoy immunotherapy 2 times and my skln went crazy they stopped the treatment and wanted me to have surgery or radiation i said no i am 78 years old i asked wait to next 3 month pet scam. nodule went down to 5mm i asked again for next 3 month pet scam went down to 0. no cancer has showed up since. thank God and you wonderful fokes i have been taking fenben 222mg 3 days a week with curcumin 2 times every day. but it is rising my ast alt liver over 150 and goes back down after 2 to 3 weeks. would it work if i try 1 or 2 fenben a week or what do you think thank you all so much
Dear Jimmy,
Thank you for sharing your experience with us, and we are glad to hear about the continued positive scan results.
Temporary elevations in AST and ALT are sometimes reported with fenbendazole use. The fact that your values return to normal within two to three weeks suggests reversible liver stress rather than ongoing injury.
A reasonable first step is to add dedicated liver support, such as milk thistle or TUDCA, while continuing your current reduced schedule. Many people find this sufficient to stabilize liver enzymes. If enzyme elevations persist despite liver support, then reducing the number of fenbendazole days per week to two or three is worth considering. Fenbendazole can still be used as a maintenance option at lower frequency, especially when there is no visible disease on imaging.
The aim is to use the lowest effective frequency that your body tolerates well over the long term. We wish you continued stability and good health.
Hello, I am so glad I found this website with much more detailed information than any other source. For four months, in addition to having Keytruda immunotherapy infusions every 3 weeks and taking Inlyta 3 mg targeted therapy tablets twice a day, we are using 60 mg (1.0 mg/kg of body weight) Ivermectin an hour before breakfast and 444 mg Fenbendazole with breakfast that includes fat; along with supplements such as milk thistle, curcumin, etc. Having a very annoying side effect of urethral area irritation with severe itching. Thought it was the Inlyta, so paused it with doctor’s permission, and it’s still happening. I am suspecting either the Ivermectin or the Fenbendazole. What are your thoughts.
Hello, Jean. Thank you for your detailed message. We are glad the information here has been helpful.
Urethral irritation and itching are not commonly reported with Fenbendazole itself, but individual sensitivity is always possible. Ivermectin, on the other hand, can occasionally contribute to skin or mucosal irritation, especially when taken daily at higher doses. Since pausing Inlyta did not resolve the symptoms, the most practical way to identify the source is to pause one variable at a time for several days and observe whether the irritation changes. This helps distinguish whether the reaction is related to Ivermectin, Fenbendazole, or the combination.
Staying well-hydrated and adding something soothing like D-mannose or cranberry extract can help calm the urinary tract.
Hope it settles down soon for you. God bless.
Hi, I am 46 and would like to do a parasite cleanse but am not comfortable yet with dosages and frequency using the horse paste. I have bought Iver and Fenben and wish to cleanse with these two for the full 3 stage cycle. After the cleanse I would like to continue taking as a maintenance dose. Can you please help me with the protocol using the horse dosages? Additional support to take during the cleanse? I take 2 different antidepressant/anxiety meds and allergy med daily. Approx 285 lbs. Thank you
Hello, Aimee, thank you for your message.
We completely understand wanting clarity before starting any cleanse, especially when you already take daily medications.
Since you are using a parasite-cleanse protocol, most 285lbs people generally fall into the higher weight range, so the approximate starting point many use is the standard 222 mg Fenbendazole dose, with the option to increase to 444 mg if they feel well. The key is to start low, monitor how you feel, and only increase gradually.
Support during the cleanse:
Milk thistle, Electrolytes + hydration ,Probiotics, Magnesium ,Vitamin C, Light fiber to help with die-off
I am confused about dosage levels when I see many of the posts under the Makis website showing dosages of 4-5 times what is recommended here. Does more help or is it harmful or just unnecessary?
Hello Jeff,
Thank you for your question. The higher dosage levels you may see on various websites represent individual choices rather than evidence-based guidance. Increasing the amount four to five times above standard recommendations does not provide proven additional benefit and may increase the likelihood of adverse effects.
Our guidelines are designed to offer a balanced approach that prioritizes safety, tolerability, and consistent use over time. For most individuals, exceeding the recommended range is not necessary and may place unnecessary strain on the body, particularly the liver and gastrointestinal system.
We advise following a steady, moderate protocol and adjusting only by monitoring your overall well-being. More is not always better; in most cases, higher dosing is simply unnecessary.
If you have further questions, we are here to help.
on jan.2020 they found melanoma stage 4 on right arm.removed large part of arm mussel and all lymph nodes on right arm pit.took 10 months of keytruda,.and took curcumin and several several other herbs and vitamins,no cancer showed up on pe t scans until jan. 2024.a 12mm metastatic melanoma nodule in left lung.started immunotherapy with opdivo and yervoy. they wanted me to have surgery or radiation.i am 78 years old said no.and was immediately taking fenben. one immunotherapy and my skin went crazy they stopped therapy they still wanted surgery e i asked to wait to next pet scan and nodule went down to 5mm next pet scan went to zero.thank God and you people.am taking fenben 222mg to keep cancer away but it is raising ast and alt over 100 after 2 weeks would it be ok to lower 1 or 2 a week or take 2 or 3 week breaks
Hello Jimmy, and thanks for your question.
First of all, we are so happy to hear that your scan results were so positive! Back to the question; protocol breaks can indeed lower your liver enzymes. We would recommend taking your dose at least 2 days a week if your levels are elevated more often. We would also like to mention that you should try taking liver support supplements such as milk thistle, silymarin, alpha lipoic acid, curcumin, berberine, etc.
My mother is 85 years old, has diabetes 2 and has recently was diagnosed with RCC T2 N1 M0 39/24/39mm. It looks like that due to her age and other health conditions (anxious, frail, not very mobile) physicians are not eager to operate. She wants to try ivermectin+fenbendazole. She is taking the following medications:
Medication Group Purpose
Glioral / Glukofaz Antidiabetic (Metformin) Type 2 diabetes
Sermion Vasodilator / cognitive agent Circulation, cognitive support
Citalex SSRI antidepressant Anxiety/depression
Propafen Antiarrhythmic Heart rhythm control
Enalapril ACE inhibitor BP, heart protection
Lexilium Benzodiazepine Anxiety
Please let me know what protocol in her case would be best. Thank you
Hello Aleksandra, and thank you for your message. We are very sorry to hear about your mother’s diagnosis. Because she is 85 years old, has multiple chronic conditions, and is taking several medications that affect the heart, blood pressure, mood, and metabolism, there is no established or scientifically validated protocol for using fenbendazole or ivermectin in her situation. These compounds have not been studied in frail older adults with polypharmacy, and potential interactions with SSRIs, benzodiazepines, antiarrhythmics, vasodilators, and antidiabetic agents are unknown.
For these reasons, we cannot recommend any specific dosing plan. If she still wishes to proceed, the safest general principle is to introduce only one compound at a very low amount and monitor closely for changes in heart rhythm, blood pressure, mood, sleep, or appetite. It is important to avoid starting multiple new agents at the same time, since side effects cannot be distinguished in that setting.
Our dosage calculator can provide general weight-based information, but it is designed for adults without significant medical comorbidities and may not apply to someone of her age and condition. Decisions should therefore be made cautiously, with full awareness of the limited data available.
My dad is 88 years old with stage 4 lung tumor cancer. It has spread to his brain and neck area with lump. Had brain radiation and did not stop it. Will fenben do anything for it?
Fenbendazole is commonly used by individuals with advanced lung cancers, including cases with brain involvement. Lung tumours are among the cancer types that often respond to metabolic disruption, microtubule interference, and glucose-pathway suppression, which are the main mechanisms associated with fenbendazole. Even in late-stage disease, some families report reduced tumour activity, slower progression, or improved stability over time.
Age and prior radiation do not prevent its use, and many older patients tolerate fenbendazole well because it has a low toxicity profile. It does not guarantee a response, but it is reasonable to try a continuous daily regimen with food, since benefit in advanced cases usually requires consistent long-term dosing.
12 yr old male dog with Stage IV Large Cell Lymphoma. Started the Fenben 400mg and 600mg Milk thistle 4on/3off. However my significant other wanted to what the Dr tell us is best for our pet. The 2 days administered was not long enough to get results. We decided to start him on the Chop19 Chemo Protocol, I will continue on the Fenbem protocol for the next month, or longer based off guidance. The Cancer will return but I want to do everything I can so that doesnt happen. I am looking for a long term regimen of fenben to administer. Thanks
Hello, Galen, thank you for a question.
Fenbendazole can be continued safely alongside the CHOP protocol. It generally requires several weeks of steady use before any effect can be evaluated, since two days is not enough exposure to influence lymphoma cells. It is well tolerated, but appetite, stool quality, and overall energy should be monitored, and the dose reduced if any intolerance appears. Many owners continue fenbendazole indefinitely after chemotherapy as a maintenance approach.
Thanks for the response, and your resource for information, I am very excited about the promise in results. We reevaluated the CHOP protocol and have decided against it. We are sticking to the fenben mentioned above. I will adjust mg as needed along with time on time off and blood work in the 1-3 mon intervals. We did complete the initial injection for CHOP, which greatly reduced lymph nodes. With that in mind should I continue with steady use or 4/3. He is mildly lethargic so should i continue with 400mg, or reduce. Thanks
Hello, Galen, thank you for the update. If the first CHOP injection has already reduced the lymph nodes, that gives you a temporary therapeutic window in which steady fenbendazole use may help maintain control. Mild lethargy can occur for many reasons, including recent chemotherapy exposure, so it is reasonable to continue but at the lower end of the dosing range until his energy stabilizes. If he tolerates 400 mg without gastrointestinal changes or appetite decline, you may keep that amount for now.
Both continuous daily use and a 4-days-on/3-days-off schedule are acceptable long-term patterns. Continuous daily use provides a more consistent intracellular exposure, while the 4/3 schedule is sometimes preferred when dogs are more sensitive or need periodic breaks. Either method can be effective, and the decision can be adjusted over time based on how he feels, his activity level, and periodic blood work every one to three months.
If at any point stool becomes loose, appetite decreases, or fatigue worsens, reducing the dose or increasing the number of rest days is advisable. Many owners maintain fenbendazole for extended periods as long as tolerance remains good.
We wish you and your dog the very best moving forward.
Is Fenbendazole able to be taken by someone who has had a liver transplant within the last two years and is currently taking anti-rejection meds? The docs didn’t catch this liver cancer before the transplant and now it has spread to his lungs. Docs say there’s little to be done since he needs the anti-rejection meds to stay alive even though the cancer is gonna kill him. They say he can’t have a myriad of supplements since they affect your liver. Even curcumin and vitamin D is out as is ivermectin for the same reason. His potassium levels are dangerously high but can’t have dialysis since it will clear his blood of the anti-rejection meds. This guy is backed into a corner and just turned 61! It’s very sad to watch this family struggle.
Hello, Kris.
After a liver transplant, the immune system is being suppressed on purpose every single day. That makes any alternative therapy a much bigger puzzle, because almost everything has to go through the liver or affects liver enzymes in some way. And when someone is on tacrolimus, cyclosporine, sirolimus, or similar anti-rejection meds, even “simple” supplements can change drug levels and cause serious complications.
In cases like this, some families still choose to try it, starting very low and going slowly, and it can be worth a careful trial if there are no other options left. The important part is to monitor closely, and if anything at all feels off (any discomfort, unusual symptoms, or changes) it’s safest to stop immediately.
Hi all.
My 10 year old yorkshire terrier is believed to have testicular cancer. I say “believed” because vets will not diagnose unless neutering. I have been to 5 separate vets and they all have told me the same thing. I am open to neutering but would like to try other methods first.
I have been trying fenbendazole for about 6 weeks now and have not seen any improvement. I have been using panacur and dose it to about 111mg. He is a 5.2 lb dog. I pair this with krill oil. theracurmin, hemp oil, milk thistle and mushrooms like turkey tail. He gets the medicine at one meal and the vitamins at another. I am concerned that I have not seen any improvement. I cannot find any peer reviewed papers on fenbendazole and testicular cancer but I have found some on prostate and ovarian, indicating it can reach the reproductive system.
So I guess my question is, is my dosing correct? Should he be taking anything else? He is also fasting for about 20 hours a day. Unfortunately, most vets are very anti fenbendazole leading me completely on my own. I cannot even find a vet that will do blood work for me without a reason. I am feeling pretty hopeless. I know your FAQs say it can take months but I am worried that the cancer will spread before then.
Hello, Courtney.
A six-week course is still early for fenbendazole, especially with testicular tumours, which often respond slowly. Lack of visible improvement at this stage does not mean the protocol is ineffective. For a 5.2-lb dog, 111 mg daily is acceptable, but many owners increase toward 150–222 mg per day when tolerated, since small dogs often absorb lower amounts relative to dose. Fenbendazole should always be given with food to maximise uptake.
Your supplement combination is compatible and does not interfere with fenbendazole.
Hello,
Could we take fenbendazole during a long water fast(40 days) ? Because during water fast liver is a lot involved . If not, how long to wait before taking fenben?
Thank you, wish you a good day.
Hello, and thank you for your question. At this time, there is no scientific evidence evaluating the use of fenbendazole during prolonged water-only fasting, particularly during extended fasts lasting several weeks. A long water fast places significant metabolic demand on the liver due to increased ketone production, enhanced autophagy, and continuous detoxification processes. Because fenbendazole is metabolized through hepatic pathways, combining it with a forty-day fast could theoretically increase the physiological burden on the liver, even though fenbendazole is generally well tolerated in standard nutritional conditions.
For this reason, it is advisable to avoid initiating fenbendazole while the body is under the metabolic stress of an extended water fast. Allowing the liver to return to normal nutritional metabolism provides a more stable environment for the introduction of any exogenous compound. A conservative approach would be to resume normal nutrition first and then wait several days to one week before starting fenbendazole, so that hepatic enzyme activity, glycogen stores, and overall metabolic balance have had sufficient time to stabilize.
These recommendations are based on current pharmacological understanding rather than direct clinical data, and they aim to prioritize safety under conditions where research is limited. If you decide to begin fenbendazole after your fast, start gradually and monitor how your body responds.
Hello thanks for website . My mother have Large infiltrative mass in the central liver, with multiple additional nodules,
Primary gallbladder cancer spreading into the liver. Widespread enlarged lymph nodes in upper abdomen and retroperitoneal areas — supports malignancy. Two small lung nodules. We just wanted to started protocol. but got overwhelmed by so many different suggestion. Her weight is 70kg. Can you please help us for dosage and protocol. Thankyou
Hello Sana,
Thank you for reaching out and for providing these details. We understand how overwhelming it can feel when you encounter many different suggestions at once. To ensure that you begin safely and confidently, we recommend using our official Fenbendazole Dosage Calculator, which automatically adjusts the dosage according to body weight and provides a clear protocol. For a weight of 70 kilograms, the calculator will give you the most accurate dosing guidance based on the standard schedules that many individuals follow. You can find the calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
If you have additional questions after reviewing the calculator, you are welcome to contact us again. We will gladly assist you in navigating the information so you can begin the protocol with clarity and confidence.
Good mor administrationning
A very close friend of mine was diagnosed with dementia I remember reading something about fenbendazole can work maybe not get rid of it but maybe bring them back to earth a bit. Can you help us out on that one?
Dear Rich,
There is no strong evidence that fenbendazole can treat dementia directly, but some people explore a parasite-cleanse protocol when cognitive decline seems sudden or unexplained. The idea behind that approach is simple: chronic infections, inflammation, or parasitic load may worsen brain function in certain individuals. If your friend wants to try it, it is important to follow a structured schedule, take breaks, and monitor how they feel.
Another option many people use is Methylene Blue. This one actually has research behind it – low-dose MB has been studied for its ability to support mitochondria, improve cellular energy, and enhance memory and cognitive clarity. That is why some individuals with dementia, Alzheimer’s disease, or brain fog report feeling “more present” or “more grounded” after starting it. The doses are very small, and it is usually taken in water.
None of these approaches replace medical care, but they are things people often try in addition to standard treatment to support brain function and overall clarity.
Just wanted to give you an update on our 55 lb Labrador mix. She is now 60 lb and is receiving chemo (vinblastine) every 2 weeks. We have her on the Fenbenzaole (444) 6:days on and 1 day off. She is also on Tumeric/Curcumin (500 mg 2 x per day), D3, Chinese herb immune booster. When originally diagnosed bladder tumor in June (transitional cell carcinoma) mass was roughly 3cm x 3 cm. It did shrink to about 1.5 cm x 2.5cm but has remained,the same for about 6nwks Is,there anything additional you would recommend or is this a normal result with the use of the Fenbenzaole. Any information would be helpful.
Hello, and thank you for the update. It is encouraging that your dog’s tumor initially reduced in size and has remained stable for several weeks. For transitional cell carcinoma, a stable measurement over time is considered a positive response, especially when combined with vinblastine and supportive supplements. Many dogs experience a plateau phase after the initial shrinkage, and maintaining stability is often viewed as meaningful progress.
Your current fenbendazole schedule and supplement routine are consistent with what many owners use. Although no controlled studies exist for additional agents, some owners choose to introduce ivermectin at low, intermittent amounts as a complementary approach. This is not a proven treatment, but it is something commonly explored in combination with fenbendazole in cases where tumor behavior has plateaued. If you decide to consider it, it should be introduced slowly and monitored for tolerance.
Beyond that, optional additions such as omega-3 fatty acids or quercetin are sometimes used for general cellular support, though their impact on tumor size is not defined.
If your dog continues to feel well and imaging remains stable, that is a meaningful therapeutic outcome for TCC. We hope the stability continues and her quality of life stays strong.
Thank you for your response back to me
She’s on 444 6 days what im Tring To figure out is how Often And how much?
Example: reduce FENB to 4 days from six (she’s doing well on that 6 days )
Example:Or low dose like 1 os 3 MG in afternoon 2 or 3 days a week of Ivermectin
With FENB but in afternoon or evening and am I right on dose? Starting her out really slow can you HELP
Plus she’s on the vinblastine I really don’t want to over do it
Hello Richard, thank you for the clarification. Since your dog is tolerating the 444 mg schedule well, there is no strict need to reduce the fenbendazole frequency unless you notice changes in appetite, energy, or stool quality. Many owners choose to continue the six days on, one day off rhythm for stability, while others shift to four or five days on if they want a gentler long-term schedule. Both approaches are commonly used.
A commonly used starting range for ivermectin in dogs is 0.05–0.1 mg/kg, given only two or three times per week, with several hours separating it from fenbendazole. Beginning at the lowest end and monitoring how she feels is the most cautious approach.
The goal is not to “stack” high doses but to introduce each component slowly and watch for tolerance. Because she is also receiving vinblastine, a careful, gradual schedule is especially important. If she is feeling well and imaging remains stable, maintaining a steady routine is more valuable than trying to push higher or more frequent dosing.
If anything seems too strong, you can always reduce the frequency rather than the amount. Slow, consistent adjustments tend to work best alongside her ongoing treatment.
I am 63 years old male and I had correctal cancer surgery about a month ago to take out tumor from my colon. I saw my oncologist and I am not interested in doing FOLFOX or CAPOX chemo therapy. From what I understand, It increases my survival rate by 20% only. They come with some serious side effects that could be permanent and it only increases my survival rate by 20%. I learned about Fenbendazole treatment and is something I want to do and I’m hoping that it will help cancer from metastasizing remotely. So, starting next week, I will take 222mg per day Mon thru Wednesday and rest Thurs thru Sunday. It is based on the dosage calculator. Also, I will be taking Curcumin and CBD oil. The recommendation did not mention anything about Milk Thistle but I also plan on taking that. Question is do I take Milk Thistle just Mon-Wed or every day of the week like Curcumin. I heard that it may not be good to take Milk Thistle every day. I also read that taking Vitamin D3 is also encouraged. Should I take that too or can I skip it for now. If I should take it, how often should I take it, daily? Lastly, I read that I should do this Fenbendazole treatment for 5 years. Is that every week for 5 years, or do I take break after certain number of weeks, and how long would the break be. Does this approach sound good or is there something else I should know. I’m planning on blood test every 6 months to keep an eye on AST and ALT levels. I’ve been reading pretty much everything about this treatment but also fairly new at it. I’d appreciate any advice.
Hello Stephen,
Thank you for sharing your situation. According to the protocol we provide, the recommended regimen is 222 mg of fenbendazole once per day for six days each week, Monday through Saturday, with Sunday as a rest day. This schedule is generally more effective and better tolerated than a three-day cycle, and it is the approach most people follow.
Curcumin and CBD oil fit well with the protocol shown in the attached instructions. Milk thistle can also be taken daily, not only on the days when fenbendazole is used, since consistent liver support helps maintain stable AST and ALT levels. There is no evidence that daily milk thistle is harmful.
Vitamin D3 is encouraged, as many individuals have low levels after cancer treatment. It is typically taken daily, with the dose adjusted if blood testing is available.
Regarding duration, this information is only general guidance, as the length of treatment depends on how the cancer responds. Most individuals continue using fenbendazole according to the standard protocol until they are confident the cancer is no longer present. After that, they usually transition to the relapse-prevention protocol and continue with that schedule moving forward.
Your plan to monitor AST and ALT every six months is acceptable, though some people choose to test more frequently at the beginning.
My mother has had multiple cancers since March 2023. Triple neggative .
It started in her breast, then lymph nodes, then lungs, then brain, and now a little bit in her liver. Αt the beginning She underwent chemotherapy and immunotherapy but nothing. In the brain she has three hearths and she did cyberknife after that the two hearths stoped but one of them make her an brain edema . I start October with IVE 12mg two times per day and fenben 222mg two times a day, vitamine D3 25000 per week, vitamine e 1000 per day,plaquenil 200mg two times per day . Is all that drugs ok to keep going …. ???
Does anyone know how to stop brain edema ?
I BEG someone help us please
Dear Dimitris,
We are very sorry to hear about your mother’s situation. In complex cases like this, supportive measures that reduce inflammation and stabilize metabolism often become very important. The protocol you listed is commonly used by many people, and most continue ivermectin, fenbendazole, vitamin D3, vitamin E and Plaquenil without issues, although every individual responds differently, so it is essential to observe your mother closely for any signs of intolerance.
For brain edema, many caregivers add supplements known for their anti-inflammatory and stabilizing effects. DCA (dichloroacetate) is often introduced when cancer spreads to the brain, because it supports mitochondrial function and cellular energy balance. Boswellia serrata extract is widely used around the world for managing brain edema, and many people report meaningful improvement when it is taken consistently. Additional supportive options include omega-3 fatty acids, curcumin and magnesium, which may help reduce neuro-inflammation and ease pressure-related symptoms.
These measures are not cures, but they are frequently used to help control inflammation and maintain stability. If you decide to continue the protocol and add new components, do so gradually and monitor your mother’s reactions carefully. Finding the right combination often requires time, patience and close observation.
We sincerely hope your mother experiences relief and improved stability, and we remain here to assist you with any further guidance you may need.
I have a 2mm tumor in my lung and I’m ready to get the Fenbendazole combined with ivermectin. I’ve taken ivermectin horse paste before I found this. Honestly I’m not sure where the good stuff is. I see multiple scam stuff everywhere. How do I know I’m not wasting my time, money, and life? Can you try to name a few or find a way to hint. I’m pretty resourceful but this is so important I need input. I saw you’re testing some brands. Someone must be able to vouch for something somewhere now?
Dear Veronica,
Thank you for your message and for expressing your concerns. It is completely understandable to feel uncertain when there are many unreliable or misleading products on the market, especially when your health and safety are at stake. As the Fenbendazole.org team, we focus on providing accurate information and guidance, but we cannot publicly list or endorse specific suppliers. The landscape of available products changes frequently, and naming individual brands could create misunderstandings or unintended risks.
However, you can find reliable community feedback in the dedicated Facebook group linked on our website. Many members openly share their experiences, discuss which sources have worked for them, and provide real-world insights that can help you make an informed decision. This community-driven information is often the most practical and up to date.
It is important to stay cautious, verify any seller carefully, and rely on groups where people actively report their results. We wish you clarity, safety, and the best possible outcome as you move forward.
I have a large growing menginglioma, have recently been told not to drive due its size, and have been waiting 5 years for an operation due to NHS doctors constant strikes making waiting lists longer. I take Phenobarbitone 90mg daily re epilepsy – 49 years and have been researching taking fenbenazole. The long term effects of the anticonvulsant mean liver pain, and raised AST/ALT levels of which the doctors ignore since they prescribe the medication. I now have a fatty liver too. (Non drinker).
Consequently, since I don’t get any medical support I am not sure how to monitor my liver should I start fenbenazole.
I’d really rather not die waiting for treatment, which seems ever more likely, but would appreciate any advice regarding dosage etc under the circumstances.. I recently started taking 900mg circummin with black pepper and ginger etc, plus 420mg boswellia, 2tsp black seed oil, and liverel support for liver. All of which are supposedly not good with anticonvulsants, but I’m desperate. I should value any advice you feel you can provide
Hello Sue,
Given your situation, it is completely understandable that you are looking for options outside the system, especially after years of waiting and with a tumour that continues to grow. A meningioma of that size, combined with long-term phenobarbitone use, places significant pressure on the liver, and your concerns about elevated AST, ALT, and fatty liver are entirely valid.
Fenbendazole is usually mild on the liver, but when liver function is already compromised, it is important to be cautious. Without medical support, the best way to monitor yourself is by watching for warning signs such as increased right-sided abdominal pain, unusual nausea, dark urine, pale stools, fatigue, itching, or any yellowing of the skin or eyes. These can indicate that the liver is under additional strain.
Because your liver is already stressed, you may benefit from adding support such as TUDCA and choline with inositol. These compounds help with bile flow, reduce inflammation, and support fatty-liver recovery, and they can be combined with what you are already taking if you tolerate them well. Curcumin with black pepper, boswellia, and black seed oil all have anti-inflammatory properties, but they can influence how the liver metabolises medications, so spacing them out and introducing any new supplement slowly is a sensible approach.
Fenbendazole dosing in situations like yours is best started very gently. Begin with half of the standard dose recommended in our calculator and use shorter cycles at first. If everything feels stable, you can gradually increase the number of days, and later work your way up to the full suggested dose. You can find the calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
With slow adjustments, close self-observation, and good liver support, many individuals in similar circumstances manage to use fenbendazole safely.
I am 68 years old, 66 kg.
I was diagnosed with duodenal mass, gland forming tubular adenocarcinoma (intestinal type adenocarcinoma) in January, 2025. I have metal stent in bile duct.
In January, 2025 I had mesenteric artery surgery. The same month i had brain stroke. ( I can walk just my right arm is still affected).
I have heparin allergy.
Years ago I was diagnosed with AFib and have to use blood thinner daily.
Last year i had internal bleeding.
I use pantoprazole, candesartan, feramax, apo bisoprolol, atorvastatin, Fondaparinux sodium injection 0.6ml daily.
Can I take Fenben therapy. Does it interact with other medication?
Hello Aljosa,
Given your complex medical history, including a recent diagnosis of duodenal adenocarcinoma, stroke, use of multiple medications, and a heparin allergy, it is important to approach the use of Fenbendazole with caution and careful consideration. Fenbendazole is generally considered safe for many individuals, but it can interact with certain medications, particularly those affecting liver enzymes, blood clotting, or the gastrointestinal system. Fenbendazole may have potential interactions with anticoagulants, such as Fondaparinux, which is used for blood thinning. This could increase the risk of bleeding, especially given your history of internal bleeding. It is essential to assess if any adjustments to your anticoagulant regimen are needed while using Fenbendazole. Pantoprazole is a proton pump inhibitor that reduces stomach acid, which may affect the absorption of certain medications. Fenbendazole should be taken with food or fats to enhance absorption, so it is necessary to time your doses appropriately to avoid interference with the medication’s effectiveness. Fenbendazole is unlikely to directly interact with bisoprolol, a beta-blocker, or atorvastatin, a statin, but it is important to monitor for any unusual side effects, especially considering your heart condition and the medications you are taking. Since you have had a stroke and have partial arm weakness, it is also important to consider how Fenbendazole may affect your overall energy levels and any potential side effects that could complicate your recovery process. While Fenbendazole is often used as part of alternative treatment protocols, it is essential to evaluate potential interactions between Fenbendazole and your existing medications, as well as monitor your health closely for any adverse effects. It may also be helpful to consider additional supportive treatments, such as liver support or adjustments in your current regimen, to ensure the best possible outcomes.
Hi, I’ve been diagnosed with stage 4 adeno/neuroendocrine rectal cancer which has metastasized to pelvic lymph nodes, and liver, and lungs, and right pelvic area. According to the dosage schedule for 107 lbs. it recommends 222 mg. fenbendazole, should I take 6 days on and off 1? What if I took the 444 mg. would that be harmful? I’m currently taking 1 cc Ivermectin and 1 tsp fenbendazole. Would you recommend additionally the curcumin/turmeric, CBD oil and Vitamin D? Thank you for any information you can share.
Hello Darlene,
For a body weight of 107 lbs, 222 mg is the standard starting dose, but some individuals do choose to use 444 mg instead. Using the higher dose is generally considered acceptable as long as you tolerate it well and monitor your liver enzymes regularly, since liver function is the main safety concern with higher benzimidazole dosing. The 6-days-on and 1-day-off schedule is commonly used, but it is not mandatory; the most important factors are consistency and tolerance.
Your current use of ivermectin alongside fenbendazole is a combination that many people choose, and adding curcumin or turmeric, CBD oil, and vitamin D is also common. These supplements do not conflict with fenbendazole or ivermectin and are often used for their anti-inflammatory or supportive properties.
Hi all. About 4 years ago, my mom was diagnosed with basal-cell-carcinoma & splenomegaly, leading to splectomy. Cancer-cells were found in spleen. After several more basal-cell occurrences (MOHS treatments)She became very ill. Diagnosed about 2 months ago with ‘t-cell large granular lymphocytic leukemia’ and squamous-cell-carcinoma. Also systemic candida. Constant UTI & sinus infections with nearly, non-stop-courses of antibiotics(sometimes, 2 at a time & steroids(prednisone) Cancer center said, ‘Go home, we’ll keep an eye on it”.About 25 days ago, I convinced her, she had nothing to lose, by taking the fenben & IVM paste. She also has high BP & is on 2 BP drugs, NA fatty liver & NA cirrohis. Thyroid nodules.Low protein levels..She is taking the bio-available form of turmeric, milk thistle but no berberine because of BP drugs. Want her to take vit e, spirolina but her stomach’s suffering from current list. She just began taking, a 2 day break, once a week & using 2 capsules of activated charcoal’ instead of fenben/IVM. I’ve read of great successes with other cancers BUT have seen 2 posts by people claiming their loved-ones had the TLGLL, used the protocol, with no help. They didn’t heal or live. Has anyone with this more rare condition, been helped or is this an act of futility? I’d really be grateful for some insight. My mother’s a dear, kind lady and she wants to live. Thank you so much for using your time to help strangers online. Any advice would be greatly appreciated.
Dear Mattie,
Fenbendazole and ivermectin are not universal treatments that work the same way for every cancer type or every patient. The clinical response always depends on how the specific cancer responds to metabolic and microtubule disruption, how it aligns with the patient’s immune function, and how the body tolerates the overall treatment load. For some individuals, these drugs provide significant benefits, but there are cases where the progressing biology of the disease or the depletion of the immune system leads to a limited or no response. T-cell large granular lymphocytic leukemia is a complex and unpredictable condition, so it is not surprising that different individuals react differently.
Given your mother’s liver condition, it would be sensible to support hepatocyte function. A combination of TUDCA and choline with inositol generally helps improve bile flow, reduce inflammation, and support fat metabolism in the liver, which can be beneficial in cases of fatty liver infiltration and cirrhosis. In addition to these supplements, adequate protein intake remains crucial, even if appetite is diminished. Easily digestible proteins such as egg whites, cottage cheese, collagen hydrolysate, or small portions of whey protein can help slowly restore albumin and overall nutritional status.
Given the systemic candidiasis and recurrent urinary and sinus infections, it might be helpful to add N-acetylcysteine (NAC) to support glutathione levels and gradually introduce probiotics such as *Saccharomyces boulardii* to help strengthen the gut barrier and reduce infection recurrence. Due to the altered stomach sensitivity, smaller doses of supplements should be used, and tolerance should be monitored carefully, as any supplementation needs to align with her current weakness.
Fenbendazole and ivermectin use can continue with regular breaks, while monitoring liver enzymes and ensuring that the body is well-hydrated and receiving adequate minerals. It would also be wise to introduce mild antioxidants, such as vitamin C in smaller doses throughout the day, to avoid exacerbating gastric issues. If blood pressure and heart rate allow, very light physical activity, such as short walks at home, helps maintain lymphatic flow and immune balance.
Your mother’s situation is challenging, but that does not mean the efforts are in vain. Even in rare and aggressive hematological conditions, the body’s response depends on multiple interconnected factors. It is crucial to remain attentive to symptom changes, monitor tolerance, track liver and kidney function, and maintain a stable nutritional status. These measures improve overall biological resilience and increase the chances that any selected protocol will have at least partial effect.
If Mebendazole is safe for lactating moms, especially at 16 months when babies are only getting a few oz a day, would that make Fenben safe? I know there have been cow studies on their milk. Not everyday but just like the two round option. Or would I need to take it longer if I’ve never done a cleanse, but my detox pathways have been open using NAC and other supplements for almost 10 months. And what binder would be good in the breastfeeding scenario? Thanks for this website, it’s amazing!
Dear Sav,
Thank you for your thoughtful question. Unfortunately, we cannot consider fenbendazole “safe” for breastfeeding simply because mebendazole is sometimes used during lactation. Although both drugs belong to the benzimidazole class, they are not identical, and fenbendazole has no clinical studies in breastfeeding humans. The only available data come from livestock research, which shows small amounts can appear in milk, but these studies are not designed to evaluate infant safety and cannot be used as medical guidance for human use.
Because of this lack of human data, we cannot say that fenbendazole is safe during breastfeeding, even if the child is older or nursing only a few ounces per day. If someone still decides to use any benzimidazole while breastfeeding, that choice should be made together with a healthcare professional who can evaluate risks individually.
As for binders, most clinicians consider options such as activated charcoal or bentonite clay only with strict timing separation from breastfeeding and medications, because binders can interfere with nutrient absorption. This is something that should be discussed with a healthcare provider who can assess your personal situation.
We appreciate your kind words about the website, and we ąre glad the information has been helpful.
Are there any Telehealth clinics that will wright prescriptions for Fenbendazole and Ivermectin?
Dear Brian,
You generally do not need a prescription for fenbendazole or ivermectin if you purchase them online from reputable suppliers. Fenbendazole is not prescribed for humans in most countries, so telehealth clinics will not write prescriptions for it. Some clinics may prescribe ivermectin, but for most people it is simpler to buy it directly without a prescription.
When choosing a high-quality product, the most important things are purity, third-party lab testing, clear labeling of dosage, and a transparent, trustworthy supplier. Avoid anonymous sellers and very cheap products with no certificates of analysis. A reliable source will always provide clear information about purity, testing, and manufacturing standards.
Thanks for your answer. Do you or anybody have any information if Fenbendazole (Mebendazole) helps against meningeoma. Just wondering because meningeomas are not cancer. As said, I am treating myself now for 6 weeks (Mebendazole, Vit D, CDS and Zinc) but do not feel any improvements so far. Would you combine with Ivermectine? Thanks much in advance.
Thank you for your message. At this time, there is no clear scientific evidence showing that fenbendazole or mebendazole is effective specifically for meningiomas. These tumors are usually benign and slow-growing, and their biology is quite different from aggressive cancers, which are the primary focus of benzimidazole research. Because of this, responses-if they occur-tend to be slower and less predictable.
It is also important to keep in mind that six weeks is still a very early stage of treatment. Many people report that noticeable changes, such as stabilization or gradual improvement, usually appear only after approximately two to four months of consistent use. Therefore, not feeling any changes at this point does not automatically mean the treatment is ineffective.
As for combining mebendazole with ivermectin, there is no established evidence for this approach in meningioma. Some individuals choose to combine them based on their different proposed mechanisms, but this remains experimental, so careful dosing and close attention to tolerance are essential.
If you are considering continuing or trying an additional agent such as ivermectin, you may do so as long as dosing is kept within safe limits and you tolerate it well. While the evidence is limited, many individuals choose to explore combinations, and for most people this does not cause additional problems when done responsibly.
Hu there
I was disgnosed 5 meningeomas in my Brain.
Started with 200mg Menendazole 6/1 some 5 weeks ago together with CDS
Anything else I can do?
Do you have any experiencees with menigeomas
Thanks for this great page
Tom
Hello, Tom. Thank you for sharing your experience and kind words.
You may also add metabolic or supportive compounds such as vitamin D3 + K2, curcumin, milk thistle, CoQ10, and omega-3. All aimed at supporting healthy cell metabolism and liver protection.
Also we have some information, that compounds like sodium dichloroacetate (DCA) may help with meningioma.
Thank you for such a helpful website. I started taking 14mg Ivermecten daily in July for a very small (6ml) tumor in my lung. It has been slowly shrinking – even before the ivermecten started. If I add fenben do you think it will die faster and completely or since it is so small just be patient and let the iver do it’s thing?
Hello. Great to hear your progress so far! In cases like yours, adding fenbendazole can often help support and speed up progress, since it works through a different metabolic pathway than ivermectin. The two can complement each other well. Fenben is generally considered very safe, especially when liver function is normal. If your recent liver tests look good, there is little harm in trying it. Many people notice that fenbendazole tends to accumulate results over time, so patience and consistency are key. You are already on a good path, this could help move things along a bit faster.
Does fenbednezal cause blood sugar to go upon a diabetic? Or does it interfere with the insulin?
Hello Ashley,
Current scientific information does not indicate that fenbendazole increases blood glucose levels or interferes with insulin function. It is not known to affect glucose metabolism or insulin sensitivity. However, because human research is limited, it is always wise for someone with diabetes to monitor their blood glucose more closely when introducing any new substance to see how their body responds.
I have stage 1A cutaneous T cell lymphoma, mycosis fungoides. I would be grateful for your guidance on the following questions.
Fenbendazole
a. Is there any clinical evidence that fenbendazole is effective in CTCL, specifically stage 1A mycosis fungoides,
b. If any data exist, what dosing schedules have been used in humans, what monitoring is advised, and what safety concerns or drug interactions are most relevant in a patient on skin directed therapy
Mebendazole as a substitute
a. If fenbendazole is not available in my region, does mebendazole have a similar mechanism or any clinical evidence in CTCL that would justify its use
b. If so, what human dosing and duration have been reported, and what safety profile should be considered
Ivermectin
a. Is there evidence for topical ivermectin cream used on MF lesions, in terms of response rates, expected time to response, and safety on chronically treated skin
b. Is there any evidence for oral ivermectin in CTCL, and if so, what dosing, duration, and monitoring have been used, and what adverse effects are most concerning
If you could point me to peer reviewed studies, case series, or clinical guidelines that address these points, I will review them closely. Thank you.
Hello, Bassem. Thank you for a question.
Mechanism behind fenbendazole – disrupting microtubules and glucose uptake — applies broadly to many cancer types, including lymphatic ones. There are no clinical studies to support that, and possibly will never be, because it is a generic drug with no patent so no one in pharma will invest any money into it. If fenbendazole isn’t available, mebendazole works through a very similar pathway and can be used the same way. Topical ivermectin hasn’t shown much benefit for MF patches based on what we’ve seen.
You can start slow, observe how the skin responds, and adjust as needed. Many people stay consistent for several months at minimum till any results show up.
I have prostate cancer and have been seeking sources of fenbendazole, mebendazole, and Ivermectin through the internet since where I live it is not legal OTC and must get a prescription which nobody will prescribe. In searching for things on the internet I have found that it is difficult to know if what I’m being sold is what they’re representing. It would be vastly helpful if a list of good sources and bad sources was published to help separate the sheep from the goats. Please consider making a list part of your website and of course cover your liabilities with sufficient disclaimers. Getting actual product instead of something that’s either not Pure or carrying extra toxic things or fillers is a real risk when sources are difficult to find. Evil people looking to sell falsely labeled products to people who are desperate is a reality that will only be challenged if a list is published and some accountability through Market reaction happens. Even publishing a guide on how to determine if something is what it says it is would be very helpful. As a purchaser of product, I can only rely on the representations being made by the seller even about third-party testing, so I really don’t have any way of knowing unless I’m conducting the third party testing in contact with the labs that are doing it, and then it’s only for the batch that they were sent instead of what’s actually coming out of production.
Hello, Dan.
We completely understand. We’re actually working on putting together a list like that. There are just so many brands and sales channels that it’s difficult even for us to track them all accurately.
We’ve already sent several well-known products for lab testing and are waiting for the results. More samples will follow, as our goal is to eventually identify the top 5 verified (by us) products.
It will take some time, but we will publish the findings only when we’re confident they are accurate, unbiased and actually legal.
Hello,
I have an 11 year old Labrador with lots of lumps, vet’s diagnosis they are lipomas(fat cells). The biggest mass is on his left axilla which is like a size of a tennis ball. Im wondering if Fenben oral/paste would be suitable for him and what dosage. Looking forward to hearing from you.
With thanks and appreciation,
Reena
Dear Reena,
Thank you for reaching out to us. Based on your description, Fenbendazole would be suitable for your Labrador. It is commonly used for dogs and is generally very well tolerated.
You can find the correct dosage using our calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. Enter your dog’s weight, and it will show the daily dose of pure Fenbendazole in milligrams. Then, calculate how much of your product to give based on its concentration. For example, if the calculator suggests 444 mg and your paste contains 100 mg per gram, you would give 4.44 grams of paste daily.
Fenbendazole is best given with food for better absorption.
Hello,
I have a dog with two adrenal tumors. I am not finding anything on your site for adrenal tumors. The biggest challenge is that I have one possibly invading blood vessels. I am reading this stops cancer but what does it do for tumors. If it stops the cancer ( not sure she has cancer. you can’t test unless you have them removed) do they get smaller?
Hello, Danielle. Thank you for reaching out!
Fenbendazole has shown potential in reducing tumour size and inhibiting cancer growth in various models, and it may help with your dog’s adrenal tumours by slowing growth or even shrinking them. While there are no specific clinical studies on adrenal tumours in dogs, the mechanisms of Fenbendazole: targeting cell division and glucose metabolism—suggest it could be beneficial. Many people have seen positive results with other types of tumours, so it’s likely that it could help in this case as well.
As always, it’s important to monitor progress with your vet, but Fenbendazole is a promising option to consider.
Hi have an benign acoustic neuroma for the last three years.
Has there been any instances where this or any other drud similar has positively affected reduced the tumor?
Hello, John.
Unfortunately, we have not heard or read any reports of fenbendazole and acoustic neuroma. However, we do know of a few cases where fenbendazole significantly contributed to the treatment of neurofibroma and ependymoma.
Hi, Could you please let me know, if my husband has liver cirrhosis can he take fenbendazole? I really appreciate ityour answer. Thank you
Dear Agnes,
Thank you for reaching out with your question. While fenbendazole may offer potential benefits, it is important to note that your husband’s liver cirrhosis requires careful consideration when using any supplement, including fenbendazole. To support liver function, we highly recommend adding liver support supplements such as TUDCA or milk thistle while using fenbendazole. To start, it is advisable to begin with half of the recommended dose. For instance, if his weight indicates he should take 222mg per day, he can begin with 111mg per day for a few weeks, using fewer days per week initially. If he feels well and experiences no issues, he can gradually increase the number of days per week and, later, the dosage. It is essential to monitor his condition closely and make adjustments as needed.
I suspect my 11 pound cat has developed some type of cancer. Behavior has recently changed and he has been much more lethargic the past 2 months. For about the past 7 months he would often throw up after a meal and also developed small scabs that resembled flea allergy dermatitis. There were fleas but they were treated and are gone now and he didn’t have the dermatitis when fleas were present. Scabs persist. For the past few weeks he has been eating much less. Today he just started growling in secluded areas and gets aggressive when anything comes near him for a period of time. I can tell something is seriously wrong with him I’ve watched a cat get cancer once before it was similar to this. He seems to have pain when I push on his lower abdominal area and he has been licking/cleaning his backside area very often more than usual. I’ve ruled out a blockage and other possible causes and I suspect it is some kind of cancer. I’ve read that the Fenben dose for him is 2.5ml using a 10% solution of 100mg/ml of fenben. 3 days on 4 days off. What else do I need to incorporate into his treatment regimen to keep it as safe as possible and give him the best chance? I don’t have a ton of money so a proper vet diagnosis is probably out of the picture and none of the vets I typically used to go to would even treat my pets without vaccinating them which is a deal breaker for me. Thanks for you time
Dear Kevin,
Thank you for sharing this – it is very clear how much you care about your cat, and you are doing everything right by paying attention to the changes you have noticed.
For an 11 lb (5 kg) cat, the typical fenbendazole dose is about 333 mg per day for four days, followed by three days off, and then repeated weekly. Since you have a 10% liquid solution (100 mg/mL), that equals approximately 3.3 mL per day during treatment days. You can start with half of that amount at first to make sure your cat tolerates it well, and then gradually increase to the full dose.
You can mix the fenbendazole with a small portion of fatty food such as wet cat food, tuna, or a teaspoon of coconut oil – it helps with absorption and makes it easier for him to take. Fenbendazole is considered very safe for cats, even if it turns out not to be cancer, so you will not harm him by trying it.
If possible, consider adding gentle liver support such as milk thistle or TUDCA, and make sure he stays well-hydrated throughout treatment. You are acting early and with great care – that gives him the best chance for comfort and recovery.
Hello,
My dog is 40 kg/ 88 pounds. I was giving him Safe-Guard 1 1/4 teaspoons of the liquid, but it smells and tastes bad. So I ordered the powder from FenBen Lab thinking it would have less junk in it. Do you think this powder/brand is just as effective? His weight is so close to 90 pounds, should I do the 666mg? He has Hemangiosarcoma with “spots” on the liver. I am so terrified and can’t sleep at night worried sick his spleen will rupture and he will suffer. But during the day, he seems tired but without pain, so putting him down does not seem right yet. I just don’t know the best thing for him. Any thoughts on these issues would be so much appreciated. And I would like to say (as a human nutritionist) I am so grateful for people like you. You’re rare!!
Hello Carolyn,
Thank you so much for sharing your story, and we completely understand how difficult it is to see your dog going through this. It is clear how much love and care you are giving him, and that truly makes a difference.
Yes, FenbenLab is an excellent choice. They provide pure, pharmaceutical-grade fenbendazole with no unnecessary additives, and their products are highly regarded for consistency and quality. It is a great option, especially for dogs who dislike the taste or smell of liquid formulations.
For your dog’s weight of 40 kg (about 88 lbs), a daily fenbendazole dose of 666 mg is appropriate and well within the standard range. You can mix the powder with a small portion of food that contains some fat to help with absorption and make it easier for him to take.
Continue to monitor his comfort closely, and know that what you are doing – supporting him with care, attention, and the best available options – is already the right thing.
Thank you so much for your reply! I know that there are different protocols stating 0-4 days off. Do you like having any days off or the 7 days/week?
Yes, but days off are more of a personal preference considering every person has a different response to this compound, so it might vary from 1 to 4 days. Also to asses this everyone should asses the liver health and the severity of the disease they have.
Nearly 2 years ago I had non-hodgkins stage 3. After chemo I had full remission. What will be the best protocol for me for maintenance?
Dear Bernt,
Thank you for reaching out and for sharing your story with us. We are glad to hear that you have achieved full remission after treatment. For maintenance and long-term support, the Relapse Prevention Protocol is typically recommended. This protocol is designed for individuals who are currently in remission and wish to maintain a stable, cancer-free state while supporting normal metabolic balance.
You can find the full dosing instructions through our Fenbendazole Dosage Calculator at https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. In the calculator, simply enter your weight and select “Relapse prevention” in the Protocol section. The calculator will automatically generate your appropriate daily fenbendazole dosage along with a detailed schedule.
This protocol typically involves taking fenbendazole for three consecutive days per week (for example, Monday through Wednesday), followed by four days off. The cycle is repeated for about ten weeks and can be done one, two, or three times per year, depending on individual circumstances and tolerance.
Is it possible to combine fenbendazole and ivermectin?
Hello, Karina.
Yes some people use both on separate days. For instance in a seven day week they take fenben for 3 days, ivermectin for 2 days and then take a few days off medication for liver to adapt and recover better.
My husband has oral cancer and has been taking Ivermectin as well as Fenbendazole. He has been taking the 222mg capsules but it is getting harder for him to swallow them. I was wondering if I could take the powder out of the capsules and administer to him through his feeding tube? I appreciate any suggestions.
Dear Bonnie,
Thank you for reaching out and for sharing your husband’s situation. We understand how challenging this time must be for both of you.
Yes, the fenbendazole powder can be taken out of the capsules and given through the feeding tube. It is usually best to mix the powder with a smooth, semi-liquid food such as yogurt, kefir, or a thin porridge. This helps the powder blend evenly and makes it easier to administer without clogging the tube. After giving the mixture, flush the tube well with water to make sure the full dose reaches the stomach and the tube stays clear.
Including a small amount of dietary fat, such as butter, olive oil, or another mild fat source, can also improve absorption.
We wish your husband strength and comfort as he continues his treatment.
Hello!
I have a 12 year old cat that presented with excessive blood in vomit in March 2025. An ultrasound determined that he has a large gastric wall mass. Just recently (end of September) I had a biopsy done and they determined it was high grade lymphoma. So far, I have not treated him with chemo.
At the beginning, I started him on Prednisolone 5mg daily, adding 65mg Fenbendazole daily, Vitamin D daily, Omega 3 daily, Turkey Tail daily, pre/probiotics daily (all with food). Gradually I added in Ivermectin at 0.8mg 5 days a week. By this time, I increased his Fenbendazole to 300mg and had him take it only 4 days a week. I’ve been monitoring his liver via blood work and it was stable throughout the months. Ultrasound after ultrasound, the mass warped in size, changing in width and length. One measurement would increase, the other decrease. I thought the treatment was working. However, the mass stopped any notion of shrinking even with higher and higher doses of Fenbendazole (700mg). By this time, I took him off of Ivermectin and ramped up his Fenbendazole to 1000mg 6 days a week (split into AM and PM doses, 500mg each). I tried adding curcumin but his anemia took a turn for the worst and I had to back off. I wanted to use CBD but I fear interactions with Prednisolone and it causing the prednisolone to be too overwhelming on his system.
My vet is open minded and I am transparent with her about everything I am doing. I was really afraid of putting him on such a high dose of Fenbendazole, but I had reached out to Dr. Makis via email and he recommended that as the starting dose “at least” (that was back in April and I did not know that my cat had lymphoma, I just knew he had cancer). He’s been on the 1000mg of Fenben for over a month and his recent bloodwork was rough. His anemia is worse than ever and now his albumin is low (which it had never been before). That is a huge concern.
Yesterday I took him off of fenbendaozole completely and I am grasping at straws to figure out what my next step should be. I’ve considered MMS (chlorine dioxide), but right now his liver might not be able to handle that burden. I’ve been getting fenbendazole (and ivermectin when I had it) from Chewy pharmacy– liquid oral solution. Because of his recent decline, I also re-started his iron dextran injections and then started him on B-12 complex injections (and digestive enzymes).
I really wanted to give him milk thistle and curcumin but I’ve read that it can prevent iron absorption and actually remove iron from the body.
So far, his kidneys (which is usually the first health problem for older cats) have been stable. His potassium is low and so I’m starting him on that once it comes in the mail. I want to support his kidney health to help take some burden off of his liver. And I want to support his liver health. Do you know of anything that may help? Could I give him CBD oil? Curcumin? I’m afraid to start him back on Ivermectin because I’m not sure if it helped and it’s easy to cause toxicity in cats. Fenbendazole was much safer to push for higher doses… but, do you think the Fenbendazole would of made a greater impact this far into his journey if it was going to work for him? He has outlived the statistic for sure and done very well, but he isn’t getting better. I am also afraid of him getting drastically worse without the fenbendazole….
I do need to do another ultrasound and see if there’s been any change in the size of his mass. It’s growing and changing in measurments (partly due to the nature of an ultrasound for that area) and partly due to treatment. Surprisingly though, he barely vomits now. He was a chronic puker way before he was vomiting blood. The few times he did puke over the last month there was no blood anymore! However, he lost his strength all of a sudden. He’s had some good spells though where he seemed on the mend if you were to just meet him you’d never know he was sick. Now, he looks frail all of a sudden. But he has enough energy to catch a chipmunk outside. I’m trying to give him the best quality of life that I can even with all the supplements and syringe feeding (something new I had to start because he isn’t eating well– and I tried every type of cat food you can think of).. but I feel really stuck now. Any words of advice would be greatly appreciated. He did not look nor act like an older cat until he got sick. He had a lot of energy and a big apatite. (Oh, I’ve been trying to feed him a low glycemic diet/ high protein diet but it’s really hard when he doesn’t want to eat so I have to give him the unhealthy stuff sometimes– which he wont eat now anyway. But he was doing really well eating Dr. Kelsey’s brand of cat food before his decline).
PS: is it safe to take him off of such a high dose of Fenbendazole without tapering?
Also, Dr Makis recommended Essiac Tea supplements but every time I consider that option, I am conflicted on if it is something that could make his situation worse.
Thank you for taking your time to read this. I am truly grateful that this platform exists because I do not know where else to turn to. My little boy is my whole world and I want him to feel better.
Hello, we are really sorry your cat and you are going through this.
Stopping abruptly is safe. Fenbendazole doesn’t cause physiological dependence, so tapering isn’t required.
After long or high-dose use, it’s sensible to re-check liver enzymes, total protein, and albumin about a week later; those values often improve once the drug pressure is removed.
Anemia in feline lymphoma often reflects marrow suppression from the cancer itself or chronic inflammation, not only nutrition.
Low albumin can come from protein loss through the gut wall (common with gastric masses), reduced liver synthesis, or poor intake.
These are signs of systemic burden, not necessarily of one supplement or medication.
S-adenosyl-L-methionine (SAMe) and silybin (milk-thistle extract) are the best-studied hepatoprotectants in cats.
They’re used in veterinary products such as Denamarin® or Denosyl®.
– They don’t meaningfully block iron absorption when given hours apart from meals or injections.
Omega-3 (which you already use) is also liver-friendly and anti-inflammatory.
Keep hydration up; mild subcutaneous fluids can help if appetite is poor.
CBD: data in cats are limited. The main concern is that it inhibits cytochrome P450 enzymes, slowing steroid metabolism and potentially intensifying prednisolone’s effects (more thirst, appetite, muscle loss). If tried, it should start at very low doses (≈0.1–0.25 mg/kg once daily) under veterinary monitoring.
Curcumin: generally safe but may slightly reduce iron absorption. Giving it several hours away from iron injections largely prevents that. If it causes nausea, stop.
Never start both new supplements at once—add one, wait a week, observe.
Another ultrasound and full CBC/chemistry panel are important now that he’s off fenbendazole. The pattern of change (growth, ulceration, or fluid) will guide whether comfort-focused care, low-dose chemotherapy (e.g., chlorambucil + prednisolone), or supportive therapy alone makes sense.
Hi there, thanks for this website and the valuavble info! My niece was recently diagnosed with Pancreatic cancer. She had a distal pancreatectomy in July this year. She needs 11 rounds of Platinum Folfox chemotherapy. She has finished round 3 now. Her symptoms from the chemo are getting worse. I’ve done alot of research on Ivermectin and Fenbendazole and want her to start on a protocol as soon as possible. The problem is that her Oncologist said that she should not use Ivermectin with this specific chemo type(Platinum Folfox). Can you provide any feedback on this regard? Could you also provide a specific protocol? She weighs 80kg.
Dear Ren,
Thank you for your message and for sharing your niece’s situation. We understand how challenging this time must be for her and your family.
At this time, wae do not have reliable, evidence-based information regarding the use of Ivermectin in combination with chemotherapy, including the Platinum Folfox regimen. Therefore, we cannot comment on its compatibility or potential interactions.
Regarding Fenbendazole, it has been studied in various preclinical models for its potential effects on cancer metabolism and cell regulation. For those who wish to explore this compound further, accurate dosing and product purity are essential. You can use our Fenbendazole dosage calculator to determine an appropriate, weight-based approach here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
It is generally advised not to take Fenbendazole for a few days before, during, and for a few days after chemotherapy sessions to minimize potential strain on the liver and allow the body to recover. After this short break, Fenbendazole may be resumed as tolerated.
Each person’s situation is unique, so careful observation and a gradual approach are important whenever introducing any additional compounds during ongoing cancer treatment.
Good day and thank you for all the information here.
I took half 444mg of femben for 4 days then had to go on antibiotics right after that. Now not sure what caused me to feel not so great after starting the antibiotics so my question is, when I try fenben again should I start with the same dose? I have 444mg caps but don’t want to over do it as I’m new to it. I’m 55 , 6’2″ and 250lbs.
I wanted to try fenben for its antiparasitic benefits and wanted to do a course of it , then another three weeks later not planning to do the weekly protocol.
Thank you again for your time and all of your information.
Thank you for your message and for sharing your experience.
Since you’re new to fenbendazole and recently had antibiotics, it’s understandable to go slowly when restarting. Many people start with a lower introductory dose—for example, 222 mg per day (half of your capsule) for a few days—to see how their body responds before moving up. Given your weight (250 lbs / ~113 kg), the standard reference dose for fenben use would usually fall around the 444 mg range, taken once daily with food containing fats to support absorption.
If your earlier reaction happened right after starting antibiotics, it may have been related to gut microbiome changes or detox effects, not necessarily fenbendazole itself. Still, restarting gradually is the safest approach.
Thank you very much for your reply, I finally got back on here to reply, I’m thinking it was more than likely the antibiotics and with that said, I will try the 222mg for 4 days again and see if there is those symptoms reoccur. Not too worried about it, it was this group that helped me get to the point of trying this anyway so should be good. And so, one more round at 222 and if that goes well I’ll get to the 444 mark a couple times year.
Thank you for your time and I really appreciate you reply. I’ll let you know how all works out.
Hello, Jon!
Glad to hear you are giving it another try and that the symptoms have settled. Keep us updated on how it goes- your feedback helps others, too.
Hi, I’m new to your site, thank you for all you do! I give my current 50lb pup 5 grams of canine dewormer. I just rescued a100 to 120lb pup. I’m having a hard time with the math. Calculator says 2272mg could you please confirm how much to give her for parasite treatment. I’ll be getting her weighed tomorrow so guessing on the weight. But would like to get the proper amount 2722mg is the calculation how many 4g boxes will I need. Thank you
Hello, Donna.
For a 100–120 lb dog, the typical fenbendazole dose for parasite treatment is 50 mg per kg (22.7 mg per lb) once daily for 3 consecutive days.
100 lb × 22.7 mg = 2,270 mg (≈2.27 g) per day
120 lb × 22.7 mg = 2,724 mg (≈2.72 g) per day
So yes, your calculation of about 2,272 mg is correct for a 100 lb dog.
If you’re using the Panacur C 4-gram boxes (each containing 4 g = 4000 mg of fenbendazole powder per box), you’ll need:
About ½ to ⅔ of a box per day for a 100–120 lb dog.
Each box lasts roughly 1.5–2 days, so for a 3-day treatment, you’d need 2 boxes total to be safe.
Once you get the exact weight tomorrow, you can fine-tune the dose, but you’re already very close to the correct range.
Is it effective to mix all together one packet Panacur C, 222mg Fenbendazole Granules, with one heaping tablespoon FAGE 5% Fat yogurt and one heaping teaspoon coconut oil, and then eat it following a regular meal. This is for myself, not an animal.
Dear Patrick,
The effectiveness of fenbendazole is not determined by the specific type of food it is mixed with but rather by ensuring that it is taken with some form of dietary fat to improve absorption. Mixing fenbendazole granules with yogurt and a small amount of coconut oil is generally considered acceptable, as both contain fats that can help with bioavailability. It is also advisable to take it after or together with a regular meal, since fat-containing food aids in the compound’s absorption and may help reduce potential gastrointestinal discomfort. However, it is important to ensure that the total dosage is appropriate for human use and that the product purity is verified through independent laboratory testing before consumption.
I realize that restricting sugar is a good thing for cancer, but what about the sugar in fruits? I eat a lot of blueberries, raspberries, pineapple, grapefruit, bananas, and apples. Do I need to stop eating fruits? I am finding the discussions about correct dosages somewhat confusing when I see many sources of 222 fenben but see some people say they are only half that amount, with the other half fillers. Also, what does the CBD actually add? Do you know of any cheap good sources of bulk Fenben, and do you know if any health plans cover the cost?
Hello, Jeff. Thank you for great questions.
1. You don’t need to completely cut out fruit.
The main concern is refined sugar and excess carbohydrate load — not the small, fiber-bound sugars in whole fruits. The key is to keep overall daily sugar and starch intake low enough to avoid fueling glycolytic too much.
2. 222mg is considered safe dose to use for a long periods with no or minimal side effects.
3. CBD’s role: it’s mainly supportive — anti-inflammatory, anxiolytic, and sometimes used to improve sleep or appetite. It may also modulate cell-signaling pathways linked to tumor progression and enhance the tolerability of fenbendazole.
4. Lots of people buy merc product like panacur or safeguard packets (there is only 22-10% fenbendazole in them – the rest is a filler), others buy pure 99% fenbendazole with no fillers. If saving money and financial situation are important factors, then it’s better to buy pure fenbendazole. That’s why most people prefer to buy from reputable brands with their own official websites, such as Fenben Lab or Fenzol. Buying directly from official websites also usually comes with a money-back guarantee, customer support, and reliable delivery, which you rarely get when purchasing through third-party sellers.
Hello, my question is very simple. What type of CBD oil should i use with the protocol.
full-spectrum CBD, broad-spectrum CBD, or CBD isolate?
Thank you for all you are sharing and god bless
Hello, Troy.
Full-spectrum CBD is generally preferred.
It contains the full range of cannabinoids (including trace THC < 0.3%) and terpenes that can enhance anti-inflammatory, anxiolytic, and potentially anticancer actions. Broad-spectrum (THC-free) is an alternative if THC must be avoided for legal or personal reasons. CBD isolate has the weakest synergy and is least preferred in this context. God bless
Good Afternoon,
My mom is 77 years old and has been diagnosed with aggressive T2 cancer in the bladder. She had a double bypass on her heart a couple years ago so she takes 25mg of Metoprolol and 10mg of Atorvvasptin cholesterol medication per day. Is there any drug interaction with the fenbendazole 222 protocol that you would be concerned about if she were to start it while details are being worked out for her radical cystectomy procedure to come? Thank you in advance.
Hello Jimmy,
Fenbendazole is metabolized mainly in the liver and has shown anticancer activity by interfering with tumor cell metabolism and microtubule formation. At the standard protocol dose of 222 milligrams daily, it is generally well tolerated. Your mother’s medications, metoprolol and atorvastatin, are processed by cytochrome P450 enzymes (CYP2D6 and CYP3A4, respectively). Fenbendazole is not known to inhibit or induce these pathways in a clinically meaningful way, so direct interactions are unlikely.
The main consideration is that all three compounds are metabolized hepatically, which means careful monitoring of liver function is important, especially since statins alone can occasionally raise enzyme levels. Fenbendazole does not interfere with cardiovascular regulation, so no added concern exists with metoprolol. Overall, the risk of drug interaction is low, and the focus should remain on watching liver function and supporting it with agents such as milk thistle or curcumin if tolerated.
Good day-
If taking fenben for parasite cleanse, and taking initial dose on calendar dates 1-5, what calendar dates should the next 5 day cycle be taken?
Hello Ben,
For a parasite cleanse, fenbendazole is often taken for 5 consecutive days and then repeated every 3 weeks. If the first cycle is on days 1–5, the next cycle would usually be on days 24-28.
Hello fenbendazole team,
My mom has DLBCL that penetrated to CNS. 68yo, 163cm, 62kg. Two weeks ago we started with 222mg fenbendazole 6 days on / 7 day off + Curcumin 500mg twice per day + CBD before sleep. All supported with crushed milk thistle, one small teaspoon twice per day. What is your opinion about increasing amount to 444mg since she tolerate the current dosage without problem ?
Dear Tom,
Thank you for sharing the details regarding your mother’s current regimen.
According to our dosage calculator, for a body weight of 62 kg the recommended standard dose of fenbendazole is 222 mg daily, which corresponds to a conservative and commonly applied range.
If this dose has been well tolerated, a gradual increase to 444 mg daily may be considered. This would correspond to approximately 7 mg/kg, which remains within the empirically reported safe range. Such an adjustment is reasonable as long as tolerance remains good and liver function is monitored to ensure safety.
The supportive supplements you are using – curcumin, CBD, and milk thistle – are consistent with commonly used adjuncts. Nevertheless, it is important to monitor hepatic enzymes (AST, ALT, ALP, bilirubin), since both fenbendazole and several supplements are metabolized in the liver.
Good morning, Doctor, as I mentioned some time ago, I continue to lose a lot of hair. I stopped taking mebendazole as per protocol (1500 mg daily) and am restarting the fenbendazole (444 mg 3 times daily), which I was already using before and after colon surgery in May 2025. Unfortunately, however, I continue to lose hair. I’m wondering if I can reduce the amount of fenbendazole: 444 or 888 mg daily, no longer 1332 mg. I take invermectin (I’m wondering if I can reduce this too). I take zinc, milk thistle, boron, vitamin C, vitamin D3, and K2 MK7. I’ve also recently started taking quercetin. I’ve also noticed that my urine smells strongly of ammonia. Can you tell me what to do? In mid-October, I’ll have blood tests and two CT scans of my abdomen and chest with contrast. Thank you. Sabina
Dear Sabina,
From what you have described, the amount of fenbendazole you are currently taking is much higher than what is generally considered safe. The best way to determine the appropriate dose is by using the official dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. Based on weight, the daily dose is most often 222 mg or 444 mg, following the six-days-on and one-day-off schedule, and not 1,332 mg. The strong ammonia-like odor in your urine may be a sign of liver stress, which makes it especially important to return to a standard dose and continue liver support with milk thistle or TUDCA. Ivermectin should also be taken strictly according to body weight, about 0.2 mg per kilogram, and higher exposures should be avoided. Until your scheduled tests in October, the safest course is to stay within weight-based dosing guidance and monitor your condition closely.
Hair loss has occasionally been reported with benzimidazole drugs such as fenbendazole and mebendazole, especially at higher or prolonged dosing. While this effect is not common, it can occur when the exposure is above the typical range. By reducing fenbendazole to a calculator-guided dose and supporting liver function, the risk may decrease, although hair growth often takes several weeks to stabilize. Other factors, such as stress, nutritional status, or prior treatments like surgery or chemotherapy, can also play a role, which makes it difficult to identify a single cause. For now, the most important step is to return to safe, weight-based dosing, maintain your supportive measures, and let your upcoming tests provide clearer answers.
I started Fenbendazole 6 days per week about 2 months ago at the same time I started a KETOgenic diet. my latest blood work shows macrocytic anemia. Would this be from the KETO diet or can this happen from Fenbendazole?
Hello Car,
Macrocytic anemia is generally defined by the presence of enlarged red blood cells (increased mean corpuscular volume, MCV) and may arise from several well-established mechanisms. The most common etiologies include deficiencies in vitamin B12 and folate, alcohol use, certain medications that interfere with DNA synthesis, liver disease, and, more rarely, bone marrow disorders.
The ketogenic diet has the potential to contribute indirectly to macrocytic anemia. If dietary intake of folate or vitamin B12 becomes insufficient due to restricted food groups, or if absorption is impaired, megaloblastic changes in the bone marrow can occur, resulting in macrocytosis. In addition, high fat and low carbohydrate patterns may alter gut microbiota, which can influence vitamin metabolism and absorption.
Fenbendazole is a benzimidazole compound primarily studied for antiparasitic use. Its mechanism of action involves disruption of microtubule formation through binding to β-tubulin. While preclinical data suggest some off-target effects in mammalian cells at high concentrations, there is no documented evidence in the published literature that associates fenbendazole with the development of macrocytic anemia. Reported adverse effects in humans are sparse and generally involve gastrointestinal upset or, in rare cases, hepatotoxicity. Macrocytosis has not been described as a recognized effect.
In summary, current evidence suggests that the ketogenic diet is a more plausible contributor to macrocytic anemia through micronutrient deficiencies, whereas fenbendazole is not known to induce this hematologic change. A careful evaluation of vitamin B12, folate, and related parameters (homocysteine, methylmalonic acid) would be informative in determining the underlying cause.
Hello,
My mother is in the terminal stage of pancreatic cancer, with metastasis to the liver and other abdominal sites. The pancreatic head tumor is about 9 cm and is severely compressing the stomach and duodenum. She is unable to eat, and the nasogastric tube is used only for drainage of vomit and decompression.
She also suffers from cachexia, extremely thin, and is maintained only by IV nutrition. Because of the tumor compression, she vomits about 800–1200 cc per day, has very little urine output (400–500 cc/day), and has not had a bowel movement for almost two weeks. She is drowsy most of the time but still conscious.
Two months ago, the doctors already informed us that there is no curative treatment available, only palliative care.
Currently, I am trying the following protocol:
09:00 AM – 5cc 70% DMSO + Ivermectin 24mg, applied topically on the skin over the tumor for 1 hour
01:00 PM – 5cc 70% DMSO + Fenbendazole 444mg, applied topically over the tumor for 1 hour
06:00 PM – 5cc 70% DMSO + Vitamin D3 10,000 IU + Vitamin K2 360 mcg, applied topically over the tumor for 1 hour
09:00 PM – 5cc 70% DMSO + Ivermectin 24mg, applied topically over the tumor for 1 hour
However, since she cannot eat or drink and has not passed stool for two weeks, I am very worried that drug metabolites cannot be excreted properly and may accumulate, causing harm.
Is there anything wrong with my approach? Do you have any better suggestions? I would be deeply grateful for your advice. Thank you.
Hello, and thank you for a question.
Your thinking is correct. Fenbendazole and ivermectin like most drugs, is processed in the liver and eliminated mostly through the bile and stool. If someone has not had any bowel movement for two weeks, that means both toxins and drug metabolites can accumulate. In this setting the risk of liver stress and systemic side effects goes up. A better approach in this situation is not to push fenbendazole, but to first address the severe constipation or obstruction and support hydration and nutrition. If the patient is at the end stage of illness and unable to swallow or pass stool, it may be time to reconsider whether continuing fenbendazole, ivermectin and DMSO is appropriate at all.
Hello, my mother had a bowel movement today, but it was very watery and in large volume.
At the moment, I am using Ivermectin (IVM) and Fenbendazole (FBZ), combined with 5cc of 70% DMSO mixed into a liquid and applied on the skin over the pancreatic head tumor, in hopes of enhancing local absorption into the tumor area.
May I ask if this dosage and method of administration are appropriate or feasible for her current condition?
I would be deeply grateful for any advice or guidance. 🙏
Hello again, and thank you for a follow up.
Using 5 cc of 70% DMSO on the skin sounds quite strong, but can be okay if her blood results are in normal range. Please monitor any effects like worsening diarrhea or dehydration. Also monitor any new side effects like: skin irritation or rash, changes in liver tests, new neurologic symptoms (numbness, tingling, weakness). If there are none of them, you may continue.
Good afternoon I contacted you in July on my 10 year old black lab. I would like to inform you that he has been on.222 for eight weeks. The tumor has shrunk almost 50% in the bladder.. we are going on vacation what we mix 222 with is hamburger meat 70/30 fat and wait 10 minutes can I mix golf ball size hamburger with the 222 and freeze it while we’re away to make it easier for the dog sitter so the question is really can I freeze it and would it stay 100% potent ?
You have been an incredible help thank you
Richard
Hello, Richard. We are really glad to hear the tumor has shrunk that much, that’s a very encouraging sign!
If you blend or knead the capsule/powder into raw hamburger, then freeze, the fenbendazole will remain stable and potent. The only thing that changes is the meat texture after thawing- not the drug. Fenbendazole is a highly stable compound; therefore, freezing down to –20 °C or heating up to 70–80 °C does not affect its stability. It is recommended to allow the meat to thaw naturally before administration and to avoid reheating it in a microwave.
Good mmorning
We are giving her 444 not 222
Cum and D3 and CBD
That is fine if she tolerates it well. Do not forget to monitor liver enzymes every few months and if all is at normal range, you may continue the protocol.
Good morning
We are looking at the oral liquid. We’ve been reading a few articles on giving FENB In a liquid form, would you recommend that also we’ve been reading on olive oil that increases the potency getting to the bloodstream do you feel that is true and can you take the liquid six days a week
Hello, and thank you for your message.
Oral liquid fenbendazole is an appropriate route provided the concentration is known and the dose is measured in milligrams of active fenbendazole (not only milliliters). Because fenbendazole is lipophilic and poorly soluble in water, gastrointestinal absorption improves when it is taken with dietary fat. Mixing the measured dose with a small amount of olive oil or giving it alongside a fatty snack is a reasonable way to enhance dissolution and increase systemic exposure; the bottle should be shaken thoroughly and the dose drawn with an accurate oral syringe for consistency.
Regarding days of use, the frequency depends on the objective. For active disease, many long-term protocols use a 6 days on / 1 day off schedule to maintain continuous pharmacologic pressure with a brief recovery interval. For maintenance once stable, people often step down to gentler cycles such as 4 on / 3 off or 3 on / 4 off, monitoring tolerance. Whichever schedule is chosen, keep the same daily milligram amount on each “on” day, co-administer with fat for bioavailability, and resume the identical daily dose after the planned rest day.
In summary: liquid administration is acceptable if precisely measured; pairing with olive oil or another fat is mechanistically sound for absorption; and six days per week with one day off is a commonly used schedule for active cases, with lighter cycles for maintenance.
Thank you very much for replying. I have one other question for you. We have Finn Ben 222. Can we give the dog two 222 which would equal 444
To know if that is the right amount for your dog, it is best to calculate the dose based on body weight. We have a dosage calculator available here that can help you determine the correct amount for your dog’s size: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Good evening
I would like to try FENBEN 444 with Ivermectin we are on 444 now four months it seems that the tumor got a little bigger Do you have a protocol for combining both of them together and have you seen good results on them? We have a 55 pound black lab with bladder cancer we are giving her now Tumeric w/ curcumin, milk thistle and D3. We were originally giving her the fenben with ground beef 70/30% fat. Then we switched to olive oil which she hated. We then went to butter which was no problem but it seems tumor may be getting larger but won’t know for sure til next week. She did develop a UTI which is being treated w/ antibiotics at this time. Which would you recommend to mix fenben—ground beef or butter and is time of day preferable over another
Thank you for reaching out and for sharing the details of your dog’s case. We understand how difficult it can be to navigate these choices, and we appreciate your careful attention to every aspect of her care. Many individuals choose to use ivermectin and fenbendazole together, whether as part of their own health approach or in the treatment of animals. However, we do not provide or endorse a specific combined protocol, as our platform focuses solely on information and resources related to fenbendazole. Each compound has been studied individually in various experimental and veterinary contexts, but there is not yet reliable data regarding the efficacy or safety of using them together for cancer in animals.
Fenbendazole can continue to be administered with a small amount of dietary fat to help absorption. Most owners find that mixing the dose with a familiar, palatable food – such as ground beef or a small amount of butter – works well as long as the total daily dose is consistent and the dog tolerates it without digestive issues. The choice between beef and butter can depend simply on what the animal prefers and digests best. Ground beef (with moderate fat content) is often better accepted and provides adequate fat for absorption.
There is no specific time of day that has proven more effective for administration. What matters most is consistency – giving the supplement at roughly the same time each day and ensuring it is taken with food.
Good evening
I see on X Joe came up with a new protocol
Is that really him on X or somebody else
And what would it do with dogs 55 pounds
And how to take
Hello, Richard, and thank you for a question.
We can not verify if this is really the original profile of him, but as we have seen, there are MANY facebook profiles of him and also have seen a few on X as well. Also he have mentioned in one of his videos, that there are lots of people impersonating him, trying to make money of his name. So be careful online, because you can sometimes be mistaken.
Now for a 55 pound dog you would need around 1247mg once a day for 5 days if you are looking for deworming, and for cancer 444mg 4 days on 3 days off for continuous period.
Good evening guys I’ve been concentrating so much on my dog. I forgot about myself. The question is how does Fen-ben Work with COPD?
Hello, Richard.
There is very limited evidence (primarily animal or in vitro) regarding the use of fenbendazole in lung or airway disorders, so the following is more of an exploratory summary rather than a clinical recommendation.
Fenbendazole has been shown in animal models to attenuate lung fibrosis via anti-fibrotic mechanisms in a toxic lung injury model (bleomycin) in mice. COPD involves elements of fibrotic remodelling (especially in small airways) and chronic inflammation.
One might hypothesize that fenbendazole could exert some modulatory effect on the fibrotic/remodelling component of lung disease. For example:
By inhibiting fibroblast-to-myofibroblast transition and collagen deposition, fenbendazole might slow airway/fibrosis remodelling.
By moderating glycolytic metabolism in fibroblasts (as shown in the mouse fibrosis model), it might affect the metabolic reprogramming of lung fibroblasts in chronic lung disease.
Fenbendazole also has anti-inflammatory or oxidative-stress modulating effects, so it might address aspects of COPD pathophysiology.
I bought Fenben paste (equine) 10% for parasites. My inflammation is off the charts (C-Reactive Protein was over a 10), and my gut health is terrible…constant soft stools/diarrhea/cramping. Everything I see talks about dosage for the pills. What would be the dosage for the paste,and how often? Should I also be taking Iver paste as well? If so, how much, and how often? Do I need activated charcoal? How much/how often?
Also, my friend’s doc just called and said his bloodwork came back with malignant cells, confirming his worst fear of having some kind of cancer. He has to wait for an appointment to find out any details of what kind it is. He wants to start taking something ASAP, as he will NOT do chemo or radiation. What should he start with? He would prefer the paste, since it’s the most affordable and easiest to get.
Hello April,
Thank you for your message. Fenbendazole paste (10%) contains 100 mg of fenbendazole per 1 gram of paste. To know the correct amount, the most reliable way is to use the dosage calculator at https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
For example: If the calculator indicates a daily dose of 222 mg, this equals about 2.2 g of paste. If the calculator indicates a daily dose of 444 mg, this equals about 4.4 g of paste.
The main challenge with paste is that it is not made for precise human dosing, and the fillers it contains can sometimes cause additional gastrointestinal irritation. For this reason, pure fenbendazole in capsules or powder form is a better choice – it allows exact dosing and avoids unnecessary additives that may worsen diarrhea or cramping.
Because you are already experiencing diarrhea from fenbendazole, it would not be advisable to add ivermectin at this stage. Ivermectin often increases gastrointestinal side effects and may aggravate your symptoms. For now, it would be safer to stabilize with fenbendazole alone.
Activated charcoal can be useful in certain cases, but it also binds nutrients and other compounds, so it must always be taken separately from supplements or food (several hours apart). It is not essential to combine with fenbendazole in every case.
Regarding your friend: it is understandable that he is anxious after hearing about malignant cells. However, starting treatment before knowing the exact type and stage of cancer is risky. If he chooses to begin, the same advice applies – capsules or powder forms of fenbendazole are far more suitable than paste, since dosing is accurate and tolerance is better. In the meantime, he can also focus on general supportive measures such as a clean diet, reducing sugar intake, and supportive supplements (vitamin D, curcumin, omega-3, milk thistle for liver support). This would be a safer way to prepare while waiting for more information.
Good day,
I have already started my protocol with fenbendazol+Ivermectin for breast cancer but I would like to add CDS (chlorine dyoxide solution). Could you please tell me if those 3 mediactions are compatible to use together ? I will also use DMSO (topical on the breast).
Thank you in advance.
Annina
Hello Annina,
Thank you for your message. Fenbendazole and ivermectin are often used together, and there are no clear reports of incompatibility between the two. Both are processed through the liver, so supporting liver health is always a good idea. Chlorine dioxide solution, however, has not been studied in combination with these agents, and the scientific literature does not provide evidence for its safety or effectiveness in this context. DMSO has been explored as a topical carrier and does have unique properties, but again, data on using it together with fenbendazole, ivermectin, or CDS are very limited. Many people do experiment with combinations, but it is important to make changes carefully, one step at a time, and observe closely how the body responds. While research is still lacking, your commitment to building a thoughtful and comprehensive approach is clear, and we hope it brings you strength moving forward.
Thank you so much for the invaluable information on this site. Are you able to advise where I may be able to obtain some DMSO from please? I live in the northern part of Australia.
Unfortunately, we do not do product advertising, so we usually try not to avoid mentioning specific brands. Also we have not tested any DMSO products ourselves, so we can not ensure the purity and quality.
Hi,
I have a nine-year-old border collie diagnosed (via x-ray) with primary bone cancer (most likely osteosarcoma) in his rear leg. Do you have any reports of the fenbendazole protocol working for primary bone cancer? If so, does Curcumin given in combination with fenbendazole help increase the efficacy of the treatment for bone cancer and what would be the recommended dosage?
I’ve also heard that turkey tail mushrooms used with fenbendazole can help with bone cancer as well. Do you have any thoughts/reports on that?
Any advice you have on this would be MUCH appreciated.
Dear Heather,
Thank you for your message. At present, the available evidence on fenbendazole for canine osteosarcoma consists primarily of preclinical studies and some reports. Fenbendazole has shown antitumor activity through microtubule destabilization and interference with glucose metabolism. Relevant studies include:
https://pubmed.ncbi.nlm.nih.gov/30093705/
https://www.researchgate.net/publication/326921090_Fenbendazole_acts_as_a_moderate_microtubule_destabilizing_agent_and_causes_cancer_cell_death_by_modulating_multiple_cellular_pathways
Curcumin has been widely studied for its anti-inflammatory and pro-apoptotic properties, and it may enhance the effect of microtubule-targeting agents such as fenbendazole. In canine practice, the suggested dosage range is 80–200 mg/kg daily, usually divided into two or three doses with food. Bioavailability can be improved with co-administration of piperine (from black pepper) or lipid formulations. See:
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-6-10
https://pmc.ncbi.nlm.nih.gov/articles/PMC3604998/
Turkey tail mushrooms (Coriolus versicolor, Trametes versicolor) contain polysaccharopeptides such as PSK and PSP, which have immunomodulatory and antitumor effects. Veterinary oncology literature documents improved survival and delayed metastasis in dogs with hemangiosarcoma when polysaccharopeptides were used as a single agent:
https://pubmed.ncbi.nlm.nih.gov/22988473/
While these agents are promising, it is important to emphasize that standardized, evidence-based protocols for osteosarcoma have not yet been established. Most current practices are based on extrapolation from laboratory studies and individual clinical experiences.
Hello,
Is it normal for the CA markers to increase after you start the fenben protocol?
A month ago the CEA markers were below the range of 5 and steady for several months. Since, we started the protocol last month the CEA markers have shot upto 7.80. Is this normal?
Thank you!
Dear Soni,
Thank you for your message. A rise in CEA after starting a new regimen can occur and does not automatically indicate lack of effect. CEA is a non-specific marker and may fluctuate due to laboratory variability, transient inflammation, changes in liver function, smoking, and other benign factors. There is no established evidence that fenbendazole consistently raises CEA; a change from <5 to 7.80 over a month can fall within expected variability. The sound approach is to repeat CEA in 2-4 weeks at the same laboratory, assess the trend over several measurements, and keep the regimen stable while you observe.
For fenbendazole, please calculate and follow the recommended dose and schedule with our calculator - do not exceed the suggested amounts: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. Take doses with food that contains some fat and maintain good hydration. To support the liver while on the protocol, you may consider adding – one at a time – silymarin (milk thistle) 150 – 300 mg once or twice daily, N-acetylcysteine 600 mg once or twice daily, TUDCA 250 mg once or twice daily, taurine 500–1000 mg daily, and omega-3 (EPA+DHA) 1–2 g daily; maintain adequate protein intake, limit alcohol, and monitor liver enzymes periodically.
Dear Fenbendazole.org Team,
First, thank you for the remarkable work you are doing.
I came across your site while researching a fenbendazole protocol for my beloved 16-year-old senior dog.
During her preoperative examinations for recent dental surgery, a thoracic X-ray revealed what appear to be fast-growing lung metastases. While she was under anaesthesia, a head CT scan was also performed, which likely identified the primary tumour in her brain — a neoplastic process with osteolysis of the left ethmoid bone and new intracranial bone formation, suspected malignant neoplasia.
Neither of these incidental findings seems to be affecting her significantly at present. We suspect the brain lesion may have been there for many years and was only discovered now. However, based on the lung images, the surgeon who performed her dental procedure has given her only a few weeks to live.
For this reason, I am eager to begin a fenbendazole/ivermectin protocol as soon as possible. I have contacted numerous veterinarians, both conventional and holistic, but have not found anyone with direct experience in this area. I therefore assume I may need to start on my own — yet there is so much conflicting information on canine protocols and dosages that I am honestly confused.
For example:
* A specialised Facebook group recommends 5–10 mg per kg of body weight per day.
* Dr Andrew Jones, on the other hand, uses two different regimens:
• High dose: 50 mg/kg once daily, 3 days on / 4 days off
• Low dose: 10 mg/kg once daily, given without interruption
I also cannot find much reliable information on the protocol and dosage for the complementary supplements in dogs (curcumin, CBD, vitamin E, milk thistle).
What is your perspective on the most effective and safe approach in a case like hers?
I look forward to your reply.
Sincerely,
Barbara
Dear Barbara,
Thank you for writing to us and for your trust. We understand how challenging it is to face such a diagnosis in a beloved senior dog.
For fenbendazole, most scientific sources describe a safe daily dose of about 5-10 mg per kg of body weight. To make this simple, please use our dosage calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
It will show you the correct amount based on your dog’s weight. Over time, if your dog tolerates it well, the dose can be increased gradually, up to about double, but always step by step and with close observation.
As for supplements, published data for dogs is limited, but from general veterinary use these approximate daily ranges are considered safe:
Curcumin: ~100-200 mg per 10 kg body weight
CBD oil: ~0.25-0.5 mg per kg (can be divided into 2 doses)
Vitamin E: ~5-10 IU per kg
Milk thistle (silymarin): ~50-100 mg per 10 kg
Introduce them slowly, one at a time, so you can monitor tolerance.
We recommend starting with the standard fenbendazole dose from the calculator and adding supplements gradually. This stepwise approach is usually the safest and clearest way forward.
In the Joe Tippins protocol, what is the CBD oil for? Thanks
Hello, Debra.
In the Joe Tippins protocol, CBD oil is mainly for its anti-inflammatory and immune-supporting effects. Also to help with symptoms like pain, anxiety, and sleep, rather than directly killing cancer cells.
Does Fenbendazole make you tired?
Can Fenbendazole (and ivermectin) be taken in conjunction with the daily oral chemo drug cyclophosphamide and the immunotherapy drug Keytruda?
THANK YOU for this website and the plethora of information and help you provide!
Dear Candace,
Thank you for your thoughtful question, and we truly appreciate your kind words about the information provided on the site.
Regarding the use of fenbendazole and ivermectin alongside oral cyclophosphamide and Keytruda (pembrolizumab), there are currently no officially documented or confirmed interactions between these medications. Many individuals exploring integrative approaches have taken fenbendazole and ivermectin in combination with standard therapies, including chemotherapy and immunotherapy, often with the goal of supporting metabolic stress and immune modulation.
That said, while fenbendazole is generally well tolerated and considered low in toxicity, and ivermectin can be tolerated in moderate doses, it is strongly advised not to take either of these on the same day as chemotherapy or immunotherapy. A common and cautious practice is to pause both fenbendazole and ivermectin for at least two days before and two days after each chemotherapy or immunotherapy session. This window allows the body to focus on metabolizing and responding to the primary treatment without introducing additional compounds that may place extra demand on the liver or immune system.
It is also important to consider liver support during any combination protocol, especially if using agents like cyclophosphamide, which can affect liver function. Supplements such as TUDCA, milk thistle (silymarin), or NAC are frequently included to help protect and support liver detoxification pathways.
In summary, yes – fenbendazole and ivermectin are often used in conjunction with oral chemo and immunotherapy, but with clear timing adjustments. Pausing them around treatment days is a widely followed precaution to help minimize any potential overlap in metabolic burden.
Thank you so very much for your reply and the information. I do have a couple follow up inquiries.
1. I am currently taking milk thistle. Should I add one of the other supplements you mentioned (TUDCA or NAC), or will the milk thistle suffice.
2. My most pressing question is regarding the cyclophosphamide. Beginning next week my oncologist is going to have me start taking 50mg of cyclophosphamide DAILY (coupled with the Keytruda infusion every 3 weeks). Since I have to take this oral chemo drug DAILY, does that mean I have to stop taking the Fenben and ivermectin? Ugh!
Thank you, thank you, thank you for your guidance!
Candace,
Thank you for clarifying your follow-up questions. Regarding liver support, if you are already taking milk thistle, it can indeed be beneficial due to its silymarin content, which supports hepatocellular protection and detoxification pathways. However, TUDCA and NAC offer complementary mechanisms of action. TUDCA assists in bile acid regulation and can help reduce cholestatic stress on the liver, while NAC acts as a glutathione precursor, enhancing the body’s primary antioxidant defense system. Using milk thistle in combination with either TUDCA or NAC may therefore provide broader support than milk thistle alone, though it is not mandatory if your liver function is stable and your supplement regimen is otherwise sufficient.
As for the daily administration of oral cyclophosphamide alongside Keytruda infusions, the main consideration with fenbendazole and ivermectin is to avoid overlapping their administration directly with chemotherapy or immunotherapy sessions to reduce potential additive metabolic load on the liver and immune system. When the chemotherapy agent is taken daily without rest periods, this overlap avoidance becomes more challenging. In such cases, some individuals choose to reduce the frequency or temporarily pause fenbendazole and ivermectin, then reintroduce them in a modified schedule when metabolic demands from the primary treatment allow for it. This is not due to documented drug to drug interactions, but rather as a precaution to minimize cumulative physiological stress and allow the body to focus on metabolizing and responding to the primary therapy.
I have a 7-year-old, 30kg dog who had a hemorrhaging hemangiosarcoma removed from his spleen. He’s currently undergoing chemotherapy to delay metastasis. I’m unsure which protocol to use: 222mg for prevention or 444mg for aggressive cancer?
Dear Carolina,
For a 30 kg dog with a history of splenic hemangiosarcoma and ongoing chemotherapy to help delay metastasis, determining the correct fenbendazole dosage depends on whether the goal is purely preventive or directed toward active cancer control. Since hemangiosarcoma is highly aggressive and the risk of metastasis remains significant even after surgery, many protocols lean toward dosing in the active cancer range rather than the lower preventive range, especially during or immediately after chemotherapy.
To establish the most accurate dose and schedule, it is best to use the official fenbendazole dosage calculator, which factors in the dog’s exact weight and the intended purpose (prevention, relapse prevention, or active cancer). The calculator will also provide a proper dosing schedule: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
Using the calculator will ensure that the dosage is tailored correctly to your dog’s weight and treatment goal while minimizing unnecessary strain on the system during chemotherapy.
I have a 70 lb Husky that had liver cancer 2 years ago. I do an annual ultrasound and X-rays to check to see if still clear. Last ultrasound was February. Should he be on Fenbendazol as a maintainence or not? I’m just concerned about liver enzymes. Also how much if so 444 or 222 ?Please advise.
Thanks
Jennifer Raffo
Hello Richard,
Considering your dog’s history of liver cancer, fenbendazole can be used as maintenance, but it is important to monitor liver enzymes, as mild elevations can sometimes occur, especially with a history of liver issues.
To determine the correct dose for the dog’s weight and purpose (preventive versus therapeutic), it is best to use this calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. It is also advisable to add milk thistle (silymarin) to help protect and support the liver during use.
Is it better to buy the paste? panacur paste? Ty!
Hello, Brooke. Thank you for a question.
Panacur paste is a veterinary product made by Merck, so you can trust that it contains exactly what is listed on the label and meets pharmaceutical manufacturing standards. That gives some peace of mind in terms of quality and consistency. However, the paste also includes fillers and flavorings designed for animals, like apple flavor or starch, which do not add anything useful for cancer treatment. It is also harder to measure an exact human dose unless you use a scale, and the volume needed can be inconvenient. On the other hand, pure fenbendazole powder or capsules contain only the active ingredient, making it cleaner and easier to tailor your dose, especially if you are following a specific protocol like 222 mg. The downside is that it is not officially approved for human use, so you need to be careful about sourcing it from a reliable supplier. In short, the paste is trustworthy in terms of manufacturing, but the pure powder is usually more practical and efficient for human protocols if you can get a good source.
Hello everyone. I have stage 4 CRC with mets to liver, KRAS mutation G12d and have had a right colectomy, a hepatectomy and most recently another hepatectomy and installation of a HAI pump that failed because surgeon found tumors in my abdomen that were not there when I had my most recent PET scan just 1 week prior to surgery. I am going to start Panacur 1 mg fenbenzadole everyday and wanted to know what is the recommeded binder that I should use. Thank you in advance
Dear Elvin,
Thank you for your question. Since you are starting daily fenbendazole and already have significant liver involvement, using both a binder and liver support is a wise approach. For binders, many people use activated charcoal, diatomaceous earth (food grade), bentonite clay, or chlorella to help absorb toxins released during tumor breakdown. These should be taken a few hours away from medications and supplements to avoid interfering with absorption.
In addition to binders, liver support is especially important in your case. Milk thistle (silymarin) and TUDCA are commonly used together to help protect and regenerate liver cells, improve bile flow, and support detoxification through the liver itself. While not binders in the traditional sense, they play a critical role in helping the body handle increased metabolic stress and are frequently used alongside fenbendazole in more advanced cases.
Combining both a binder and daily liver support can help reduce side effects and support the body through treatment.
Have you had any success with Fenbendazole and blood cancers. All of the success stories seen to be only for solid tumors and I was wondering how well it does with systemic cancers. Many of the pathways are similar and all cancers depend on sugar so I am hoping it can have some affect. Is there anything you can share?
Dear Tom,
TThank you for your question. It is true that the majority of publicly available anecdotal reports and case stories involving fenbendazole tend to focus on solid tumors such as those in the lung, colon, or breast. However, the cellular mechanisms targeted by fenbendazole — such as interference with microtubule formation, disruption of glucose metabolism, and oxidative stress induction — are not exclusive to solid tumors. These pathways are also highly relevant in hematological malignancies, including leukemias, lymphomas, and other blood cancers, which similarly rely on altered metabolic and proliferative mechanisms.
While controlled clinical studies specifically evaluating fenbendazole in systemic cancers are lacking, there have been informal reports from individuals who experienced disease stabilization or improvement when using fenbendazole alongside other metabolic and immune-supportive interventions. Because blood cancers are systemic by nature, responses may vary and require careful monitoring. Nevertheless, the theoretical foundation suggests that fenbendazole may have potential benefit in such cases, particularly when paired with an integrated protocol targeting energy metabolism, immune modulation, and oxidative balance.
Three questions :
Double checking on how to weigh out and measure my Panacur Paste. The box states : Panacur Paste 10% contains active anthelmintic, fenbendazole. Each gram of Panacur Paste 10% contains 100mg of fenbendazole and is flavored with artificial apple cinnamon liquid. At 132lbs. treating a benign tumor, I’m going to do 222mg for 6 days on and one day off – if this sounds correct. How can I ensure I’m measuring out 222mg? I’m nervous about dosing size.
Second question : Could I add this to my homemade yogurt (seems it would blend in well). The yogurt has the good bacteria in it, though, is that a problem with delivery or absorption? I tried looking up whether Fenbendazole would kill off healthy bacteria in our gut and the answer I got was no, it should not. If it’s okay to consume in the yogurt, how much fat needs to be in there? I can add some nuts if that would suffice.
Third question: I had my liver markers checked and it seems my AST has recently gone down 2 points below the normal range. My calcium levels have gone down as well and I’m suspicious it could have to do with overdosing myself (stupidly) on way too much Vitamin D supplementation. I was using 50,000 iu D daily for 3 months to try and shrink a uterine tumor (benign, as far as we know) I feel totally fine but my levels got up to 516. I’ve been off Vit. D now for at least a month, to bring it back down. All blood markers were fine (kidneys, calcium) about a month ago. I did recently have more blood work done and the calcium and AST were the only 2 out of range readings. (other than blood glucose was elevated). All this to say, would there be any concern with the calcium or AST being low? I have TUDCA on the way. I’ve been using Milk Thistle but it was recently suggested that it may be estrogenic and my tumor feeds off estrogen so I plan to switch to TUDCA.
Thank you so very much, in advance.
Hello, Carre, and thank you for a question.
To get a 222mg dose, you would need to weigh approximately 2.2 grams. The most accurate way would be to measure the dose on a food scale that is sensitive enough.
Addressing the following question. Yes, yogurt is a great way to use the paste or powder. Fat is necessary for absorption, but you don’t need a lot of it, a few teaspoons of oil is enough.
And for the third question: Vitamin D does not usually lower AST significantly.
If anything, high doses of vitamin D can sometimes irritate the liver, potentially causing mild increases in liver enzymes (AST, ALT).
A slight drop in AST is generally not concerning and rarely linked to vitamin D status at all.
Vitamin D toxicity (hypervitaminosis D) usually increases blood calcium (hypercalcemia), not decreases it. This happens because vitamin D promotes calcium absorption in the gut. So there is something else that might cause it, for example it’s worth checking: Magnesium levels – Magnesium is needed to activate vitamin D. Low magnesium can block the effects of D and cause paradoxical symptoms.PTH (parathyroid hormone) – To see how your calcium regulation is functioning.
Thank you so much for your reply. Couple follow ups:
After sending this, I went with the powder to destress my mind about dosage. I will do 222mg.
Does one *have* to do the Ivermectin alongside the Fenbendazole? If so, would you mind telling me again the suggested protocol there? (dosage and days on/off etc.)
I wanted to ask how necessary the CBD oil is? What role is that playing? Is it only for better sleep and lessened anxiety or does it help the entire protocol work better?
Also, the only other recommended supplements are the Curcumin and Vitamin D, and the CBD oil (assuming that is necessary for optimal effect) but for liver support, I am quitting my Milk Thistle for estrogenic concerns (my tumor responds to estrogen) and planned to replace with TUDCA. Would that be sufficient?
And lastly, I want to add in (for my case) Serrapeptase (starting low at 40,000 and seeing how I react) and Nattikinose. I will also be using the EGCG 800mg(green tea extract supplement), Dandelion Root Tea 1-2 x per day, my Vitamin D levels are still off the charts so I’ll just use up what’s in my body (I’m assuming this would be okay?), Vit. K2(M7) 200mg to support all that extra D I accidently filled myself with, few Iodine drops topically, or may use sea kelp supplement, orally, DIM 200mg, VITEX 650mg, and Calcium D Glucorate 500mg. I also drink my magnesium supplements each day, averaging around 400-500mg per day. Do you see any issues or contradictions with any of this?
And, as always, THANK YOU for this invaluable site. I have referred, and will continue to refer, many people over here for the kind and impactful work you’re all doing.
Hello, Carre, thank you for the thoughtful message and kind words. We are truly glad the site has been helpful to you!
To your questions:
1.Great choice for peace of mind on dosing. Many people prefer powder or capsules for consistency and easier measurement.
2.Ivermectin is not strictly required to add. Also ivermectin has more side effects, so monitor your well-being. Dosage: 0.2–0.4 mg/kg, depending on tolerance. Schedule: start at 2–3 days per week.
3.CBD Oil is not essential, but can be very helpful. Its a great sleep and anxiety support. Also CBD may reduce tumor-promoting inflammation and help with pain, nausea, and overall stress response.
4.TUDCA is a smart swap. It is a potent liver protectant without the phytoestrogenic concerns. Many people using hormone-sensitive protocols do the same. It should be sufficient.
5.Additional supplements: Serrapeptase/Nattokinase: Start low, monitor for bruising or bleeding, they slightly thin the blood. EGCG: Powerful, just watch for GI upset or liver sensitivity. High Vitamin D: Yes, use what is stored. No need to add more right now, K2 is wise to include. DIM, Vitex, Calcium-D-Glucarate: All sound for estrogen metabolism support. Magnesium: Great for nervous system and bowel support-well within safe range. Iodine or sea kelp: Gentle support—just monitor how you feel. No issue at low dose.
Sorry, I just submitted a response to this (it’s in moderation now) but wanted to add to my main response that I will also be taking Betaine HCL (hydrochloric acid) with Pepsin 790mg (if tolerated when I take it)
Any issues with that supplement with all the others while using Fenben and Iver (if necessary)
Thank you for the update. Adding Betaine HCl with Pepsin is generally fine with fenbendazole, ivermectin, and everything else you are taking. It can actually help improve digestion and absorption, which is useful when you are on a supplement-heavy protocol. There are no known interactions with Fenbendazole or Ivermectin. If anything, it might support better nutrient uptake, especially for fat-soluble compounds.
Start with one capsule during meals and observe how your body responds. If you notice any burning or discomfort in your stomach, that may indicate the dose is too high or that you do not need it. Avoid using it if you have ulcers, gastritis, or acid reflux issues. Otherwise, it is a solid addition and does not raise any concerns with the rest of your supplement stack.
Okay! I wish I could just HUG you guys! This is so SO very helpful. Thank you, again and again, and AGAIN!
Sorry, another question – I’ve seen people in groups saying you must take a ‘binder’ with fenbendazole and/or ivermection to ‘bind’ any parasites. I don’t believe I see that mentioned anywhere on this site. Do you feel this is necessary if you’re using to shrink a tumor, and if so could you please advise what to use, how to use, and how often?
Thank you!
This idea comes from the parasite-cleansing world, where binders are often recommended to “mop up” toxins or debris released when parasites die (a so-called die-off or Herxheimer reaction). While Fenbendazole and Ivermectin can both have antiparasitic action, when they’re used in cancer protocols, the main goal is not to kill parasites, it’s to disrupt microtubules (Fenben) or modulate pathways like WNT and PAK1 (Iver).
That said, binders can still be helpful, but they are not strictly required for everyone.
Hola, buena tarde, desparasite a mis perros con fenbendazole, solamente tengo duda y quiero saber ¿si es normal que hayan perdido un poco el apetito durante la desparasitación? Gracias!
Hola, Sylvanna! Thank you for a great question.
Temporary suppression of appetite is a phenomenon that sometimes occurs. Also, sometimes after deworming a pet, it can be noticed that its appetite is no longer so great. This happens in cases where the worms absorbed a lot of nutrients from the pet and caused hunger, and after deworming and the worms are removed, the appetite also decreases, because all nutrients are absorbed by the dog, not the parasites.
my sister has recently been diagnosed with stage 3 breast cancer (Metastatic adenocarcinoma in the left axillary lymph node), ER positive, PR negative and HER-2 low.
She is currently undergoing AC chemotherapy since June 4 and the doctors say she’ll have her chemotherapy for 6 months. I’d like to ask if these drugs and dosage are correct for her treatment.
– 222 mg, fenbendazole daily for 6 days (Monday-Saturday), skip on the seventh day (Sunday), repeat weekly.
– Milk thistle (silymarin) – 250 mg twice daily with food
– Curcumin (turmeric) – 600 mg daily, twice daily with meals
– CBD oil – 25 mg (1-2 drops) under the tongue at night before sleep
– 54 mg ivermectin (1 mg per kg, 3x per week, 4 days off)
I’d also like to ask when she’ll gradually decrease the dosage of the drugs once we see good results, or will the dosage above likely be taken consecutively (unless if her diagnosis has worsened). thank you!
Hi, my father, aged 74, has been diagnosed with advanced large cell neuroendocrine lung cancer, which has metastasised beyond the lung.
Genetic testing revealed a KRAS mutation.
He recently completed the first of 25 planned palliative chemotherapy cycles (carboplatin and etoposide), which he tolerated well and was discharged in stable condition. In a couple of days, he will have his second round of chemotherapy.
In addition to chemotherapy, he is currently taking fenbendazole (222 mg daily, with no breaks).
I would be grateful for your guidance on the following:
Is it considered safe or advisable to use CDS (Chlorine Dioxide Solution) or blue methylene, or ivermectin in combination with fenbendazole? You mentioned on your website the benefits of using DCA, but could CDS be used instead?
What would be the most appropriate fenbendazole protocol for someone at his advanced stage of cancer, particularly with a KRAS mutation? Should fenbendazole be paused or adjusted during chemotherapy cycles?
Many thanks Aqunia
Hello, Aqunia and thank you for a great question!
Ivermectin and methylene blue may be combined into your protocol.
Now about Chlorine Dioxide Solution: CDS and DCA are very different substances with distinct mechanisms, although both are explored in alternative cancer circles. CDS acts as a potent oxidizing agent. It can disrupt microbial membranes and oxidize biomolecules. DCA targets mitochondrial metabolism, especially in cancer cells that rely on glycolysis (Warburg effect). DCA combination is the most common and best supported. CDS combo is more controversial and much riskier. CDS is a powerful oxidizing agent. That means it causes oxidative stress by stealing electrons from other molecules, especially from proteins, lipids, and DNA in your body.
Hola, buen día, mi pregunta es sobre la desparasitación, tanto en humanos como en mascotas (¿quiero saber si se puede utilizar en gatos?) Bueno, si yo ya realice la desparasitación y lo volví a hacer a las 3 semanas, ¿Al cuánto tiempo puedo nuevamente realizar el procedimiento, o sea cada cuantos meses se puede realizar una desparasitación con fenbendazole? Quedo a la espera de su respuesta y muchas gracias por solventar nuestras dudas, saludos, ¡Feliz día!
Hola, Elizabeth, and thank you for your question.
For deworming, fenbendazole is commonly used in a cycle of 3 to 5 consecutive days, followed by a break. If the goal is general deworming, it is typically repeated after 3 weeks to target any remaining parasites. This cycle can be safely done every few months.
Both humans and animals should monitor frequent or long-term use to prevent liver stress. A break between cycles is always recommended unless otherwise advised by a healthcare provider or veterinarian.
Hello, thank you for all of this information. My father is receiving treatment (docetaxel, carboplatin, Lupron, and Nubeqa) for stage 4 prostate cancer with bone spread. Could fenbendazole/ivermectin fight cancers with complete RB1 loss and BRCA2 single copy loss? Been reading about metformin, nitazoxanide, black walnut, artesunate, vit C, etc. and all of the information has been overwhelming. Worried that the cancer will morph into neuroendocrine type and would like to add anything that would prevent this. Any information would be greatly appreciated, thanks again.
Hello, Jamie!
With RB1 loss and BRCA2 single copy loss, fenbendazole likely has limited effect – RB1 loss weakens its ability to control tumor growth. It may still help stress cancer cells, especially when used with metabolic agents like metformin or ivermectin.
Ivermectin shows more promise in RB1-deficient cancers and may help delay neuroendocrine transformation, as it hits key pathways (WNT, Akt, YAP).
Many also combine with DCA, artesunate, vitamin C, and low-dose metformin. But keep the stack simple, monitor closely, and always talk to the oncologist when possible.
I’m confused as to dosage for dogs. You have 2 protocols. One is fen Ben 3 days on and 4 days off. Then the,other protocol is every day. Which is it? I have a 55 lb lab who,was just diagnosed with bladder cancer and need to know what dosage to go by. Thank you
Hello, Richard.
Yes, there are two protocols, but one is for a cancer treatment, and the other one is for parasites. When dealing with parasites. For cancer, we recommend doing 4-3 day splits, because usually this is a longer treatment then parasites, so you need to give more rest days for a dog’s liver.
I’ve seen protocols for active cancer for humans 6 days on with 1 day off with a variety of supplements. Would you still recommend the 4/3 protocol for pets? I also have her on Turkey Tail mushrooms and a 5 mushroom blend along with D3 and Curcumin. Please advise. Thanks so much!
We recommend the safest yet effective method and dosage. However, it is up to you and most people really tolerate 6 days on and 1 day off well. If you see that liver enzymes are not elevated and your overall health is okay, you can increase the dosage or frequency of use. D3 and curcumin are great! In our opinion, 5 mushroom blend still lacks research, but looks promising, so we will not comment about this method for alternative healing as there are not enough supported information so far.
Our vet is also recommending a chemo pil given on alternate days— Monday Wednesday Friday for example. Your protocol is to discontinue FenBen 2 days prior to chemo so should I even attempt chemo or see if we can do consecutive days instead of alternate days?
What would you recommend? Working with both chemo and Fenbendazole ?
Chemo and fenbendazole works well. We would recommend listening to your veterinary professionals opinion. You could try doing consecutive, but always monitor her health and consult with a vet if needed.
My 10 year old lab with bladder cancer
Just went through first week of 444 Fenbendazole
4 days on 3 days off she did very well on 444 and 4 day should I jump up to 6 days?Thank you for helping out
Hello, Richard.
We would suggest continuing at least for one more week on 4-3 day splits and then evaluate her liver enzyme levels. If everything is okay, you could try jumping to 6 day usage.
Hi guys
The Vet put us on Chemo the name is Vinblastine have you herd of this we are doing five days on two days off with 444 for a 10 year-old black lab bladder cancer. Do these two work together pretty good.it has been 6 days now on the Chemo and 444 she did great just on 444 ,D3,CBD oil, and Curcumin thank you
You have been a great help
Dear Richard,
Vinblastine is a chemotherapy drug commonly used in veterinary oncology, including for bladder cancer in dogs. Many people do combine it with fenbendazole (444 mg), along with vitamin D3, CBD oil, and curcumin, as these supplements can help support the body and may complement the protocol.
It is generally well tolerated together, but every dog can respond differently, so it is important to watch for any signs of digestive upset, lethargy, or changes in appetite as the combination continues. If she handled 444 mg alone well before, most dogs do fine when the chemo is added, as long as her energy and appetite stay steady.
Hello, just wondered if it’s ok to use FenBen Labs powder/capsules for dogs.
Thanks very much,
Meri
Hello, Meri.
Yes human grade fenbendazole is okay for other animals. Animal (pet) grade has more additives for taste and form, but human grade is usually fully fenbendazole – no fillers.
Hi, I was diagnosed with stage 1A Diffuse Large B-Cell Lymphoma and underwent four rounds of chemotherapy. I’m now in full remission. Should I consider taking fenbendazole to help prevent a relapse?
Hello and thank you for your question.
Yes fenbendazole as a preventative remedy is a potent one. You can calculate your preventative dose at our dosage calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello, and thank you for your work
when should I take fenbendazole during my chemotherapy with EC every 15 days and Taxol every week
Hello, Christine. You are very welcome, and we truly wish you strength and healing on your treatment path.
You should pause fenbendazole use 1-2 days before chemo and same after chemo. This is because chemotherapy targets fast proliferating cells the most, and fenbendazole is slowing down cancer proliferation, so chemo may be not as effective on the days you are on fenbendazole.
Hello,
I find it hard to tell whether fenbendazole actually kills existing cancer cells and shrinks tumors, or it just inhibits new growth. Inhibiting is good, but I want the existing tumors to disappear. Is that possible?
I just started Ivermectin, and one site I looked at was suggesting dosing based on Lean Body Mass, not on body weight. The numbers are really different for an overweight person like me. My weight is 245 but lean body mass is 131 (based on one calculator). So I’m unclear whether to take 222mg or 444mg of Fenben. Since I’m also on IVM daily, do I only take Fenben 3 days a week, or 6?
Thank you for your help. If you are allowed to recommend a safe source of Fenben, please do. 🙂
Hello, Beth.
Fenbendazole has shown both cytostatic (growth-stopping) and cytotoxic (cell-killing) effects in lab and animal studies, also in a real life case reports (so called anecdotal). But it depends on a cancer type, stage, overall cancer progression, dosage, duration and other variables. In some cases, people report visible tumor shrinkage, especially when combined with other agents (IVM, DCA, 2-DG, etc.). But results vary greatly.
Start at 222 mg/day (or every other day)
If well-tolerated after 7–10 days, increase to 444 mg/day, depending on how your body responds. Start Fenben 3 days/week (e.g., M/W/F) then increase to 5 or 6 days/week if well-tolerated and no liver or GI issues.
Last year my husband was diagnose with malignant melanoma of skin of back-secondary malignant neoplasm of axillary lymph node , metastatic malignat neoplasm to soft tissue. He had the mole and area around it removed and lumph nodes under both arms removed that were cancer…….cancer free and was given keytruda every 6 weeks. Cancer returned in another area on his back but not yet in lymph nodes. Changed treatment to Iplimumab & Nivolumab…he had one treatment and at the end of the 3 weeks developed a horrible rash on his upper body…got pills and cream to treat that. The day of his second treatment he developed diarrhea..took the second treatment and got sicker and sicker. He developed auto immune colitis from the treatments. He was in the hospital a week and given massive doses of steroids. We are home now . Have doctor’s appointment on June 16 to see what new protocol they are offering. They said it would be a clinical trial most likely. He will end streroids on June 19th. I have been researching fenben and ivermectin but have no idea where to start or what dosage. Can he even take since he has taken Ipilimumab and Nivolumab . Last treatment was April 29. He takes crestor, telmarsartin for blood pressure, xyzal and singular. How soon after he is off steroid can he take fenben and ivermectin? What are your suggestions? Dosage? Thank you.
Hello, Bev. Thank you for sharing your husband’s story—he has been through a lot, and so have you.
We would strongly recommend to wait until after steroids. Steroids suppress immune activity, which may blunt or confuse any immune-stimulating effects of fenben or iver. Starting too early may aggravate colitis or prevent proper steroid tapering. These compounds are generally well-tolerated, but in someone recovering from immune-related toxicity, even safe things can backfire if the gut is still fragile.
Suggested Starting Point:
🔹 Fenbendazole
Start low: 222 mg every other day with food + healthy fat (like coconut oil or avocado)
If tolerated after 1 week, move to 3 days on / 4 days off or Mon–Fri on / weekends off
Add milk thistle or TUDCA for liver support
To calculate a preferred dose you can use our dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
🔹 Ivermectin
Typical dose: 0.2 mg/kg, taken 1–2x per week
For a 75 kg person (~165 lbs), that is 15 mg per dose
Must be taken with food (fat helps absorption)
Buen día, que bueno que nos ayuden a solventar dudas, les saludo desde Guatemala, pues yo encontré el fenbendazole líquido al 10% pero quiero saber ¿Cómo serían las dosis líquidas? Ya que en la calculadora del este sitio solamente aparecen en MG, más no en ML, lo quiero para desparasitación de consumo humano y mascotas, obviamente no está demás tener la información para prevención, les agradezco mucho, bendiciones
Hello, Elizabeth. Thank you for a good question!
| Desired Dose (mg) | Volume to Use (mL) |
| —————– | —————— |
| 100 mg | 1.0 mL |
| 150 mg | 1.5 mL |
| 200 mg | 2.0 mL |
| 222 mg | 2.22 mL |
| 250 mg | 2.5 mL |
| 300 mg | 3.0 mL |
| 400 mg | 4.0 mL |
| 444 mg | 4.44 mL |
| 500 mg | 5.0 mL |
Fenbendazole for off-label purposes (like alternative health protocols) go with:
222 mg (2.22 mL) – standard daily starting dose
444 mg (4.44 mL) – higher or pulsed dose
Used with food and often with coconut oil or other fat to help absorption
Treating my dog for parasites, the dosage page mentions 5 days. Is that a total of 5 days or is it 5 on and 2 off? Thanks.
Hello, Ferdinando.
The typical parasite treatment for dogs is given for 5 consecutive days—5 days in a row without breaks—rather than 5 days on and 2 days off. This continuous dosing helps ensure effective parasite elimination.
If the treatment is only for parasites and your dog’s fecal parasite test comes back clear after the course, usually there is no need to repeat another cycle.
My fur baby cairn terrier has solo lemon size tumor mid liver with high liver enzymes. I’m devastated. Started chinese herbs, milk thistle, and turmeric as per out of state holistic vet sought. Already on fresh food and appetite is still very good, but recently picky in foods always loved-blueberries, grbeans, egg-yet always acts like hungry. Acts tired most all of the time. He’s 13.6 lbs given PanacurC 222 mg for 6 days in 1/4 tsp coconut oil with food, then off yest. Info is confusing about days on/off as I’ve seen multiple combinations recommended. I get that it depends on toleration. What’s best dosing for this tumor? When to know if it’s helping? What is rationale for off days? Anything else I can try? I’d love a miracle. Want to at least extend quality time and not wanting him to suffer is paramount. Any help is appreciated. Please help.
Hello, karen, we are so sorry you and your pup are going through this. It sounds like you are giving him the best chance with everything you are doing already.
For your dog’s weight, 222 mg per day is a standard therapeutic dose and aligns with the 20 mg/kg baseline guideline.
Since liver enzymes are already high, consider 3 days on / 4 days off initially and monitor for signs of fatigue, GI upset, or appetite changes.
Signs It May Be Helping:
Increased energy or alertness
More stable appetite or interest in food
Reduction in tumor size (if palpable)
Better stool consistency or behavior overall
Scans at veterinary professionals.
Keep a daily journal of mood, appetite, and stool—these are subtle early clues of internal changes.
Why the Off Days?
Off days give the liver a break, especially critical in liver tumor cases. Fenbendazole is metabolized by the liver, and even though it is well-tolerated, the cumulative effect can be taxing without breaks. Off days also reduce the chance of side effects and allow the body to clear what it needs to.
i was just diagnosed with papillary thyroid cancer.How much ivermectin and fenbendazole should i take. iam 74 and weigh 145 lbs..any other suggestions
Thank you for your message.
1. Fenbendazole
Typical dose: 222 mg per day (one packet of Panacur C 222 mg, commonly used by many)
Schedule:
Most common: 3 days on, 4 days off
Some choose continuous low-dose use, but this should be evaluated based on tolerance and liver health.
Take with: A fatty meal to enhance absorption (e.g., olive oil, avocado, eggs, or fatty fish)
Ivermectin
Common dosage based on weight:
0.2 mg/kg body weight
At 145 lbs (approximately 66 kg), that equals ~13 mg per dose
Frequency:
Some take it once every other day, or 2–3 times per week.
Again, dosage and frequency are best discussed with a healthcare provider, especially if you are taking other medications or have liver concerns.
This confuses me. At the top of this comment it says 222 mg per day. Then below that it says .2mg/kg with the example of 13 mg for a 145lb person. Could you please clarify?
Hello, Carles.
In the question, person asked about two substances, fenbendazole and ivermectin. 2mg/kg was the recommendation for the use of ivermectin, not fenbendazole.
Hi,
I was wondering if I can use Fenben while breastfeeding? Is so, any suggested protocol?
If not, any suggestion?
Thank in advance!
Hello, Kathy, and thank you for a great question.
Using fenbendazole while breastfeeding is not recommended, due to the lack of human safety data and the potential transfer through breast milk.
However, if fenbendazole is essential, you may try pumping and discarding breast milk during Fenben. And use milk only on your pause days, at least 2–3 days afterward, based on its half-life.
Hello
Thank you for being!
I have been diagnosed with a Breast Cancer (stage III) 3.5 years ago. Hormone dependent and HER-2 positive (3+) on the left side. I also have multiple fibroids in the uterus. I have been treating it with homeopathy, Chinese medicinal mushrooms, Qi Qong, meditation. But in 2024 I had a very challenging year, emotionally, financially, and my mother died. So I felt that directly in my body, and it metastasized to lungs, bones (right ankle, right lower back), left arm pit ganglia, and there’s a spot on the liver. I found about Febendazole, and I started 3 months ago, directly with 444g per day, 7 days/ week. I tolerate it very well. I also take Vit D3, and other complements and medicinal herbs, breathing exercices, deep inner work, and I totally changed my diet. BUT it is not bettering at all, all the contrary, I am getting worse, I started having pain in the areas with metastasis, and in the left arm (which is also getting more and more inflamed ). I don’t want to lose my faith, but it’s been such a long and lonely struggle… and I would really like to know:
1) how long do I have to keep taking it to see results?
And 2) Can I combine it with Ivermectine and CDS ? And what else?
Any other useful advice?
I am really desperate, but I am still firmly convinced that I don’t want Chemo, nor immunotherapy nor radiotherapy.
Thank you in advance for answering and helping
Yasmina
Dear Yasmina,
Thank you for your heartfelt message. We deeply admire your strength, clarity, and determination in walking such a difficult path with so much awareness and intention.
Regarding your questions:
1) How long to take fenbendazole?
Many anecdotal cases suggest several months of use before signs of stabilization or improvement—especially in advanced cancers. However, in your case, since you have already been using 444 mg daily for 3 months without any improvement and are instead worsening, this is a clear signal that the current approach may not be enough on its own. It does not necessarily mean fenbendazole is useless, but it might need to be part of a broader, more strategic protocol.
2) Can it be combined with ivermectin and CDS (chlorine dioxide solution)?
Yes, both ivermectin and CDS have been used alongside fenbendazole in various alternative protocols. Ivermectin is often taken 3 times per week (doses range around 0.2–0.4 mg/kg). Many take it in the morning on an empty stomach, while keeping fenbendazole with food in the evening. CDS, when used, is often taken carefully in low doses, away from meals and other supplements, particularly antioxidants like vitamin C, as it may neutralize its effect.
Important considerations:
Pain in metastasis areas can sometimes happen during tumor activity, but it may also signal unchecked progression. If the inflammation in your arm is growing and interfering with function, this needs close observation.
Given the spread and your decision to avoid chemo or radiotherapy, you might consider looking into low-dose integrative options: such as low-dose naltrexone (LDN), repurposed drugs like metformin, DCA, curcumin in high dose extracts, honokiol, or methylene blue. Some clinics also offer integrative intravenous therapies (e.g. high-dose vitamin C, artesunate, mistletoe).
You are not alone in this. The loneliness of this path can feel unbearable, especially when results are not visible—but your intuition and life force are strong. It may be helpful now to reassess your full protocol with someone experienced in integrative oncology to adjust what may not be working.
Thank you so much for taking the time to answer.
Yes I often feel the loneliness of this struggle. And the pressure of the conventional medicine…
I will keep searching and trying. I know I want to heal… and I probably have some blockages I still haven’t found.
I will keep you informed, as I guess it’s important for you to keep track of different cases.
I’ll maintain Fenbendazole for 3 more months, along with other things. I will let you know.
Blessings,
Yasmina
Hello! Will caffeine (coffee) have any negative effects (absorption, etc..) while taking Fenbendazole? If yes, how far apart should Fenbendazole be taken from the last drink of coffee? Thank you! -KJ
Dear KJ,
Thank you for your question.
There is no known direct interaction between caffeine (coffee) and fenbendazole that would significantly impair absorption or reduce efficacy. However, since fenbendazole is fat-soluble and best absorbed with food—especially with some dietary fat—it is ideal not to take it on an empty stomach with only coffee.
To optimize absorption, we recommend taking fenbendazole with or right after a meal containing some fat. If you are drinking coffee separately, a 1-hour gap before or after the fenbendazole dose is a reasonable precaution, mainly to avoid it replacing a proper meal.
Dear Team, dear Friends. My uncle has lounge cancer, last stage. Chemo has given no results. The tumor is 11cm. I got Fenbendazol and Invermectin with other supplements that you recommend on your page. I plan to use them together. What can you recommend? Which dosage? He has 60kg and 175cm height. I see mixed opinions. Can he do both medication on the same day? Do you have a protocoll for this combo or any experiences? Thank you in advance.
Hello, Vladan.
Thank you for reaching out, and we are truly sorry to hear about your uncle’s situation. Given his diagnosis and lack of response to chemotherapy, many have turned to complementary approaches like fenbendazole and ivermectin in hopes of offering support.
For a man weighing 60 kg, a common dosage of fenbendazole is around 222 mg daily (but he can climb up to 444mg in a few weeks if there is no side effects and it is tolerated well), usually taken three days on and four days off. It should always be taken with food, preferably containing fat, to improve absorption. Ivermectin is often used at around 0.2 to 0.4 mg per kg of body weight, meaning your uncle could take approximately 12 to 24 mg. This is usually taken once daily for a few days, or in some cases three times weekly, and is best absorbed on an empty stomach.
It is possible to use both medications on the same day. A typical approach is to take ivermectin in the morning on an empty stomach and fenbendazole in the evening with a meal. While there are different opinions about schedules, this method helps to separate the compounds for better tolerance and absorption.
We have seen people combine these with supportive supplements, as you have done, and many maintain this routine for several months while monitoring how the body responds. It is important to observe how your uncle tolerates the regimen and to monitor liver function regularly.
We sincerely wish you and your uncle strength during this time.
Hi, I have read through every single question and answer. I did not see this one addressed and hoping you can comment on it:
Would there be any potential benefit for shrinking a rapidly growing uterine Leiomyoma using Ivermectin and Fenbendazole? I have the paste in ivermectin (have taken without issue for over a month now – small dose because I’m not sure how much to take for this tumor that appears to be continually growing – fed by hormones) and I have the Panacur on the way now to add in to this protocol. (I will use the calculator). I also take a wide range of other supplements to assist in staving off the growth of this tumor. (Maca Root, Ashwaganda, Boron, Zinc, Magnesium (few varieties), Vit. K2/M7, NAC, DIM, Milk Thistle, EGCG, Alaskan Salmon fish supplement, 50,000 iu Vitamin D, homemade freeze dried capsuled beef liver and beef heart. Again, I take the Ivermectin – 3 notches daily, per my weight of 133#’s. All of this is taken daily, throughout the day. I’m having my Vit. D levels and Liver markers checked this week. Assuming all is good there, I’m curious if you know of any contradictions or issues taking these supplements with my Panacur (222)? I have not seen any information on uterine tumors but I’m wondering if it simply has not been considered yet. If it’s a tumor that grows (usually requiring surgery) could this not be treated with the same concept as shrinking other tumors? Thank you so SO very much ..
Hello, Carre, and thank you for a question.
Thank you for your thoughtful and detailed inquiry. We commend your proactive approach to managing your health and seeking information that may support your well-being. While there is limited peer-reviewed clinical data specifically addressing the use of fenbendazole or ivermectin for uterine leiomyomas (fibroids), we are pleased to provide an informed perspective.
Because uterine fibroids are hormonally driven, the use of supplements like DIM (diindolylmethane), maca root, and ashwagandha can influence estrogen metabolism and cortisol balance. DIM is particularly useful as it may help shift estrogen metabolism towards less proliferative forms (2-hydroxyestrone vs. 16-alpha hydroxyestrone).
Your current supplement regimen is extensive and thoughtful.
Talking about fenbendazole, although it has not been directly studied in fibroids, the common cellular mechanisms it affect — such as abnormal growth signaling and microtubule integrity—may potentially be relevant.
Fantastic .. thank you so much! I should have asked this before but when dosing the Fenbendazole, would it be best to follow the cancer protocol, since we’re dealing with a tumor? And to clear, no contradictions taking all of the aforementioned supplements along with the Ivermectin and Fenbendazole? Thanks!
Hello again, Carre,
Thank you for your kind words — we are really glad the information was helpful. You are absolutely right to follow up with questions like these, especially when navigating such a comprehensive protocol.
Yes, since you are addressing a rapidly growing tumor, even though it is benign (like a uterine leiomyoma), it makes sense to follow the standard cancer protocol for fenbendazole, as outlined in our guide. That would typically be 222 milligrams per day, taken with food that contains some fat, five or six days per week, with one or two days off.
As for your supplement list — which is impressively thorough — we do not see any known contraindications with taking fenbendazole and ivermectin alongside the supplements you mentioned, especially if your liver function and vitamin D levels are being monitored regularly, which is excellent.
Just a small reminder: both fenbendazole and ivermectin can put mild stress on the liver in some individuals, so it is wise to continue monitoring liver markers and take breaks if needed. Your use of milk thistle and N-acetylcysteine is a great choice for added liver support.
And yes, your thinking is absolutely valid — while uterine fibroids are hormonally driven and benign, they are still tumors in the sense that they involve abnormal cell growth. So, targeting general mechanisms like cell division, inflammation, oxidative stress, and hormonal imbalance can be a strategic and holistic approach.
I simply can’t thank you enough for your thorough answers and this resourceful page! I hope I am not ‘pushing my luck’ by coming back with one more question, so pardon me if I am! I received my Panacur 10% paste yesterday. It looks like 222 mg would be my dose based on weight. Is using a milligram scale the only way to accurately measure the Panacur paste, or is there a way to know how much each ‘notch’ on the ‘syringe’ contains? I know people use this paste and are either at 222 or 444 mg’s, so maybe this has been discussed and established? I don’t see the inactive ingredient list on this Panacur paste, either. I’m assuming it’s similar to the Ivermectin paste’s inactive ingredients .. Thank you, kindly.
Thank you for your kind words and continued engagement—it is truly appreciated.
Regarding your question on Panacur paste, the dosing syringe is indeed marked with notches for approximate dosing, and many users follow this method without a scale.
Each full 5-gram syringe contains 500 mg of fenbendazole per gram × 5 g = 2,500 mg total, and if the syringe has 18 notches, then each notch would roughly equal about 139 mg of fenbendazole (2,500 mg ÷ 18 ≈ 139 mg).
Therefore, 2 notches ≈ 278 mg, which is close to your 222 mg target dose.
For 222 mg precisely, you would need roughly 1.6 notches, though exact dosing becomes more difficult without a milligram scale.
While using a milligram scale is the most accurate method, for practical purposes, many use the syringe notches as a reasonable guide.
As for the inactive ingredients, manufacturers do not always disclose the full list on the packaging. However, veterinary Panacur pastes typically contain binders, emulsifiers, and preservatives similar to those in ivermectin pastes, such as propylene glycol, sorbitol, or artificial flavoring.
Thank you for your thorough and resourceful response.
I’m wondering if the Safegaurd can be used topically. Navel and other areas I have strange feelings.
Safe-Guard (fenbendazole) is formulated exclusively for oral administration and is not intended for topical use. The manufacturer, Merck Animal Health, specifies that Safe-Guard products are designed to be administered orally.
I have Gardner’s Syndrome with FAP. Had my colon and rectum removed (have a j-pouch, ileostomy not reversed yet). Recent endoscopy and pet/ct scans show one hot spot (2.5cm) in the stomach, and the pathology of the polyp samples taken indicate: large fundic gland polyps, fragments of pyloric gland adenoma with at least intramucosal carcinoma. Doctors say my only option is to have a total gastrectomy. Wondering if there is any chance a ivermectin/fenben protocol of some type could help save my stomach from being removed. Thank you.
Dear Jeff,
While we cannot offer medical advice, we can share that many people with serious or high-risk diagnoses have chosen to try protocols including fenbendazole and ivermectin. Some have experienced positive results, including tumor shrinkage and stabilization, even in complex cases. You can calculate your fenbendazole dose here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
The full protocol is also listed at the bottom of that page.
Ivermectin is usually taken at 0.2 mg per kilogram, five days per week. It works best on an empty stomach and should be taken at a different time than fenbendazole.
Some people also add natural support like curcumin, vitamin D, milk thistle, and CBD, along with a clean, low-sugar diet. Supporting your body with rest, peace, and hope is just as important.
Hello,
I had been diagnosed with stage 4 non-small cell lung cancer metastatic to the brain and bone a year. I am taking targeted Tagrisso (Osimertinib) every day which is a targeted medicine. In addition I am taking a monthly injection called XGEVA (Denosumab) to protect the bone. Would you please advise me if taking Febendazole would interact with this medications? Any advise you can give me, is greatly appreciated. Thank you so much for your time and help.
Hello,
Thank you for your message, we truly admire your strength and clarity in navigating your treatment.
To your question: Fenbendazole is not known to have any direct or well-documented interactions with Tagrisso (Osimertinib) or XGEVA (Denosumab). Since fenbendazole is not metabolized through the same liver enzymes (notably CYP3A4) that Osimertinib uses, a pharmacokinetic conflict is unlikely, though this has not been formally studied in clinical trials.
That said, both Osimertinib and Fenbendazole may affect liver function, so it is wise to monitor liver enzymes if using both. Also, since XGEVA affects calcium metabolism, make sure your vitamin and mineral levels (especially calcium, vitamin D, and magnesium) are regularly checked.
Your current medications are standard and effective for your diagnosis. If you choose to add Fenbendazole be sure to use our dosage calculator and also use recommended supplements.
Hello ,
I just came across your website and I can’t express my gratitude enough !! This week I got diagnosed with endometrial carcinoma stage 1A. The standard protocol is a total hysterectomy . My whole being says no .
So I was looking for an alternative and found your website . Shall I follow
Joe Tipp’s Protocol (the original version) – complimentary cancer treatment ?
I’m planning to add intake of berberine , magnesium , zinc , nattokinase , bromeline , dandelion .
Can I add reishi to this as well ?
Thank you so much , and thank you very much as well for giving your take on this !
Dear Inge,
Thank you very much for your heartfelt message. I am truly sorry to hear about your recent diagnosis, and I admire your courage in exploring alternative paths.
Yes, many people have chosen to follow Joe Tippens’ original protocol as a complementary approach, and I believe it can be a meaningful part of a broader healing plan. The supplements you are considering—berberine, magnesium, zinc, nattokinase, bromelain, and dandelion—are often used for support, and reishi can also be a valuable addition due to its immune-modulating properties.
To help determine the appropriate dose of fenbendazole based on your weight, I recommend using the dosage calculator on this page:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
At the bottom of that page, you will also find the full protocol, which provides clear guidance on how to use fenbendazole effectively and safely.
Wishing you strength, clarity, and peace as you move forward. You are not alone in this.
Dear Inge,
Thank you very much for your heartfelt message. We are truly sorry to hear about your recent diagnosis, and we admire your courage in exploring alternative paths.
Yes, many people have chosen to follow Joe Tippens’ original protocol as a complementary approach, and we believe it can be a meaningful part of a broader healing plan. The supplements you are considering—berberine, magnesium, zinc, nattokinase, bromelain, and dandelion—are often used for support, and reishi can also be a valuable addition due to its immune-modulating properties.
To help determine the appropriate dose of fenbendazole based on your weight, we recommend using the dosage calculator on this page:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
At the bottom of that page, you will also find the full protocol, which provides clear guidance on how to use fenbendazole effectively and safely.
Wishing you strength, clarity, and peace as you move forward. You are not alone in this.
Hi, I was wondering if you could recommend a protocol for me?? I do not know much about HPV 16 but was diagnosed last year. Here is what my papers said “High-grade squamous intraepithelial lesion (CIN2-3/moderate to
severe dysplasia);
High-grade dysplasia is closely excised at endocervical margins
(3-6:00 quadrant; less than 0.1 mm).
I had a hysterectomy 8 months ago. My doctor told me to eat good. That is the only information I’ve received from my doctor. Nothing else at all. I would appreciate any recommendations. I am on my own with this and I have no idea what to do. Thank you
Hello Lisa,
Thank you for reaching out and sharing your story. We know how hard it can be to feel alone after a diagnosis and major surgery, especially when no clear guidance is given afterward. Please know you are not alone, and there are supportive options to consider.
After a hysterectomy for HPV-related high-grade dysplasia, the focus shifts to strengthening the immune system, lowering inflammation, and helping the body maintain balance. Many people choose to follow a version of the fenbendazole protocol for long-term support. You can use this calculator to find your dose:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
The full protocol is listed at the bottom of that page.
Other supplements that may support your recovery include sulforaphane, quercetin, NAC, zinc, magnesium, berberine, alpha-lipoic acid, and vitamins C and D3. A low-sugar, anti-inflammatory diet can also make a big difference, along with rest, movement, and emotional care.
Greetings, just diagnosed upper tract urothelial carcinoma. Tumor lesion/cancer in one of my ducts and on kidney. Not alot of information on this type. Started Ivermectin, Fenben, Tumeric, Vit E, D3, K1&2. Curious any one know about this type of cancer and good protocol besides Google. Really just going off other type of cancers using similar protocol. Thank You
Hello, Shannon!
UTUC is rare and more aggressive than bladder cancer. Standard care usually involves surgery and sometimes chemo or immunotherapy.
Your protocol (Ivermectin, Fenbendazole, Curcumin, Vitamins D3, E, K1/K2) covers anti-inflammatory and metabolic angles. It’s reasonable, but data on UTUC specifically is limited.
If tolerated, you can continue your approach while staying in touch with your doctors. Regular monitoring is key.
Is 7500 mg of milk thistle (3 times a day) too much? Should I divide the pills into 1 per day (2500)? Also, when I put CBD Oil into the search on Amazon, all that popped up was Hemp Seed Oil. I purchased a large bottle that is Organic 500 mg per tablespoon. I’m new here and I don’t think I have the right thing. Can someone help me? If it’s wrong, where would I purchase CBD, please?
And last, but probably not least, could the Hemp oil be used as a Fatty (after) meal to take with the fenben? Thank you in advance.
Hello, Deborah, thank you for a question.
7,500 mg/day is far above standard dosing and may pose risks without clear added benefit. You can reduce dose to 2500mg no problem. Hemp oil can be used as a fat source to take with fenbendazole. Unfortunately we do not advertise on this website, so we will not recommend any CBD suppliers here, but you may get a lot of useful information or directions on Chat GPT, Facebook support groups, reddit or even X platform where discussion monitoring is not as strict.
Hi, The husband of a friend of mine is currently undergoing chemo. She wants to start him on fenbendazole, but she was wondering if it’s safe to take with chemo? Also, she has a tube of the horse paste and doesn’t know how much to start him on. Thank you.
Hello, Sam, and thank you for a question.
The general consensus is that chemotherapy plus fenbendazole is safe. The only thing you need to consider is taking a pause a few days prior to the chemo round and a few days after. This is because chemotherapy targets fast-proliferating cells the most, like nails, hair, skin, and, of course, cancer. Fenbendazole slows down cancer cell proliferation, so chemo will not target it as much if you are on fenbendazole while going on a chemo round. This is why it would be best if you took pauses to get the best results from both therapies.
Are there implications in using 220 mg fenbendazole along with 12 mg invermectin with folfox?
Hello Marco,
Fenbendazole (220–222 mg daily) and Ivermectin (12 mg) are sometimes used off-label alongside chemotherapy like FOLFOX. There are no well-documented negative interactions between them, but it is important to proceed cautiously.
FOLFOX can already be hard on the liver and nervous system, so adding other compounds should be done gradually. Fenbendazole and Ivermectin are generally well-tolerated, but both may increase metabolic stress slightly, so liver support (such as milk thistle, Tudca, NAC, or alpha-lipoic acid) is highly recommended.
Many people take these supplements on non-chemo days, once daily with food (especially some fat) for better absorption. Monitoring how you feel and tracking any symptoms is key.
Wishing you strength, healing, and clarity in your journey.
Hi, this is for a case of pancreatic cancer (malignant tumor) that spreads very quickly to the stomach. The subject weighs 55 kg.
Can we take fenbendazole 222mg with loposomal vitamin C and methylene blue?
Is there a reliable site to buy fendenbazol in Europe? Thank you for your feedback, strength and courage to all.
Hello, James.
Yes, fenbendazole is considered a relatively safe compound with minimal side effects if liver enzyme levels are in check. We also recommend taking supplements for liver health. Alpha-lipoic acid, curcumin, and milk thistle are good choices. We are not affiliated with any fenbendazole distributor or company, but if you are looking for a European-specific product, Fenben Lab is one of the top brands to look for for European products. Also, there are good results with Safeguard dewormer, which is also widely distributed in Europe. There are also Panacur products in Europe, but they are much more popular in the USA, as far as we know.
Hi, the fendendazole i have mixed at 100mg per litre is this the right ratio to take?
Hello, thank you for your question. Fenbendazole is typically used at a concentration of 100 milligrams per 1 milliliter, not per liter. If your solution is labeled as 100 milligrams per liter, that would mean it contains only 0.1 milligram per milliliter, which is extremely diluted and very unlikely to be effective.
This is a common misunderstanding, so it is worth checking the product label again to be sure how the concentration is written.
For human use, the standard dose is usually 222 milligrams per day if the person weighs under 90 kilograms, and 444 milligrams per day if over that. It is normally taken once daily with food that contains some fat to help with absorption.
Hello, I was diagnosed with stage 3 prostate cancer. At the same time, I am taking blood thinners. Is it possible to take Fenbendazole? And in what quantity?
Hello, Lenka!
Yes, fenbendazole is safe even when using it together with blood thinners. Just keep in mind that lots of people are using vitamin E together with fenben as an antioxidant. So vitamin E also has blood-thinning properties. You should not take extra blood-thinning supplements in your protocol. Fenben is not one of the blood-thinning compounds.
Hi FenBen! This site is amazing, thank you. I do not have cancer, but I do suspect I have some internal parasites and I would like to get rid of them using Fenben. I dont want to get cancer so im doing this now. I did ivermectin for 3 days (pencil eraser sized orally of apple flavored) I seemed to have tolerated it well, but I did have a pretty big headache as the days progressed. I have done some research and found that this seems to be common and I think that there is some die off happening. I am currently icing my neck and hydrating a lot, also using the vibration plate hoping it will just pass through. As I have been doing research I see that fenben might be a little more tolerable so I went to the store and bought some. I do want to give myself a break and get this inflammation under control before proceeding onto using fenben next week. My question, with this being a profolatic can you recomend how much to take when and for how long. I am just over 100 lbs and quite sensitive it seems, so I would like the parasites gone but I also can’t have this crazy headache the whole time im doing it. Your advise is so welcomed. Thank you for your time.
Hello, Ashley, and thank you for a great question!
Yes, fenben is much more tolerable than ivermectin with mild side effects. You should keep checking your liver enzymes, though, since fenbendazole might elevate your liver enzymes. So do blood tests for enzyme levels every 2-4 months just to keep safe and healthy. If enzymes are elevated, do a longer break (like a week). Since you are only 100 lbs and a sensitive person, we recommend starting with an 111mg dosage a day and maybe working your way to 222 mg. For prophylactic reasons, you can do 3 days on and 4 days off. Others do 4 days on and 3 off, but it is highly individual, so listen to your body. Then after a few months, you can take a 1-week pause for your liver’s well-being. The prophylactic approach is much more mild. Hope this helps!
Best regards.
Hello. My father has stage 4 cancer. He has multiple small tumors/cancers all over his brain. He has received all the chemo that he can. He was first diagnosed with lung cancer but it has since went away, we believe due to the Ivermectin we had been given him. But had to stop because he became non-responsive due to the brain cancer so he is now on a feeding tube. He was released from the hospital today and we brought him home and he is now on hospice. The doctors wanted to take his feeding tube out and just let him die but I had to argue with them to keep his feeding tube in. He is totally unresponsive. We would like to began Fenbendazol because we understand its more effective in crossing the blood brain barrier. My question is what advice could you give us in his situation with the feeding tube and giving him the Fenbendazol and the supplements as in your protocol? Also, should we also give him Ivermectin? Also how or should we tell the hospice we are giving him Fenbendazol? Any info would be appreciated. Thanks in advance.
Dear Prentiss,
Thank you for reaching out, and I am truly sorry to hear about your father’s condition.
In your father’s case, you are correct that Mebendazole may be more suitable than Fenbendazole for brain tumors. Mebendazole has demonstrated better penetration across the blood-brain barrier and has shown promise in various preclinical studies targeting brain cancers. That said, if Fenbendazole is more readily available to you, it can still be used, especially in conjunction with other compounds.
Reintroducing Ivermectin may be worthwhile, especially since you noticed a positive response earlier. Ivermectin also has some limited evidence supporting its potential to cross the blood-brain barrier and act on resistant tumor cells by affecting key signaling pathways.
In addition, you may want to consider incorporating Dichloroacetate (DCA) and Sodium Phenylbutyrate (4PBA) into his protocol.
DCA helps shift the metabolism of cancer cells from glycolysis to oxidative phosphorylation, often making them more vulnerable to apoptosis (cell death).
4PBA is known for reducing endoplasmic reticulum stress in cancer cells and has shown the ability to restore certain tumor suppressor genes. Both compounds are orally administered and have been used in advanced cases, including brain cancer.
Since your father is being fed through a tube, these compounds can generally be dissolved or suspended in a small amount of water or liquid food (such as enteral nutrition formulas) and gently administered via the feeding tube. Ensure everything is well-mixed and flushed afterward with a small amount of water to clear the tube.
As for hospice care, many families choose not to inform care providers about the use of alternative therapies to avoid unnecessary pushback or intervention. However, this decision is entirely personal and should be based on what you feel is best for your father and your family.
HI, My 15 year old cat was diagnosed with chronic bronchitis last June ( after an Xray ). We started with injected steroids, symptoms improved for a bit than came back. Did acupuncture , she felt better for a while than got worse . Coughing everyday , sometimes 3 coughs per day , runny eyes , runny nose ecc …In the meantime we trained her to take the inhaled steroids together with the ventolin for emergency attacks ( which by now are everyday ). Yesterday we went to the vet again, who suggested another Xtray. This time there was a growth of 2 cm near the lungs. She suggested to start thinking about euthanasia but we want to try Fenbendazole hoping it works. She weighs 2kg — What is the protocol to follow? We also give her Cbd oil and turkey tail . Thank you
Dear Ruth,
Thank you for sharing your cat’s story—she is clearly deeply loved and well looked after. For a 2 kg cat, the commonly used cancer-supportive dose of fenbendazole is 111 mg once daily for four consecutive days, followed by three days off, repeating this cycle weekly. Since you are already using CBD oil and turkey tail, those are great supportive options. You might also consider adding milk thistle to help support liver function, especially since fenbendazole and steroids are both processed through the liver. Just be sure to use a pet-safe formulation and start with a low dose. Wishing you and your sweet girl comfort and strength through this time.
Hello, i am on fenben 500 mg, ivermectine 30 mg and mebendazol 100 mg for two days now. I noticed that my thyroid tumor is shrinking. I am very happy but my lymfnodes in my neck are swollen. Is this a reaction that the medicines are working?. Maybe the tumors are panicking?
Hello Bianca,
It is encouraging to hear that you are already noticing changes in your thyroid tumor. Swelling of lymph nodes during the early stages of treatment with antiparasitic compounds like fenbendazole, ivermectin, and mebendazole may, in some cases, reflect an immune response or localized inflammation. This can occur as tumor cells begin to break down or as the immune system becomes more active in response to cellular changes. Lymph node enlargement does not necessarily indicate tumor progression—it may be part of the body’s natural response to cell death (apoptosis), detoxification, or immune system activation. However, persistent or painful swelling, or symptoms such as fever or fatigue, should not be ignored, as these could indicate infection or other unrelated processes. While the concept of tumors “panicking” is not a clinical term, there is scientific interest in how metabolic stress, microtubule disruption, and immune modulation caused by these agents can induce a cascade of tumor cell death and immune engagement. If lymph node swelling remains stable or resolves over time, it may be a transient, expected response. Monitoring the trend and documenting any new symptoms can help determine whether the reaction is temporary or requires further investigation.
I was diagnosed with DCIS last June which is termed zero breast cancer. I am going down the close monitoring route so I am not having any conventional treatment at all. What dosage protocol should I start? DCIS are cancer cells contained within the milk ducts and there is a 30% chance of it becoming invasive breast cancer. I had been through 2 decades of unbelievable stress and hell, was nearly 2 stone overweight and wasn’t eating the healthiest. But they never ask you what’s been going on in your life that could be triggers. All stressful situations are now out of my life. I started on a complete health kick and lost the 2 stone. I believe my odds are pretty good now to get rid of these rogue cancer cells, especially with the help of fenbendazole. Ivermectin is impossible to get in the UK but Fenben is a possibility.
Dear Kay,
Your approach to proactive monitoring and lifestyle changes is a great step forward. When it comes to Fenbendazole, dosage depends on body weight, and you can find a detailed guide here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. Since DCIS is a non-invasive form of breast cancer, many focus on metabolic support, immune function, and anti-inflammatory strategies alongside their protocol. It is always good to monitor how you respond and adjust accordingly. Wishing you strength on your journey!
My husband has advanced prostate cancer and has not yet undergone treatment. Last year he used fenbendazole for a few months, 444 mg per day, but without result. The psa kept rising. He also used ivermectin. Now last January he started again with 444 mg per day and ivermectin. When can I expect results? It did not work last year, so does that mean he will not respond to it now?
Hello, Wilma and thank you for a question.
Everyone’s response is different, sometimes people see a positive effect after a few months, sometimes after 4-6 months. However, everyone’s body and the characteristics of the disease are different and there are cases when the response to the drug is minimal or undetectable. It is very difficult to say when and if at all a person will see positive results, sometimes the disease is too advanced and the body is too weakened.
My 14kg dog has a brain tumor. I want to know if it is advisable to take Fenbendazole or Mebendazole. Which is the best option for this type of cancer? If it is Mebendazole, should I give it to him in the same dose, using the same protocol? What else do you recommend for his case?
Dear Iris,
Both Fenbendazole and Mebendazole belong to the benzimidazole class and have potential anti-cancer effects, but there are key differences. Fenbendazole is commonly used in dogs and is generally well tolerated. Mebendazole has better brain penetration due to its higher lipophilicity, but its absorption in dogs is variable and it is less commonly used in veterinary medicine. For a 14kg dog, Fenbendazole is typically given at 222mg per day for six days on and one day off. Since Mebendazole dosing in dogs is not well established, using the same protocol as Fenbendazole may not be ideal without veterinary guidance. Other supportive options include curcumin for its anti-inflammatory effects, milk thistle for liver support, and omega-3 fatty acids to help reduce inflammation in the brain. Since brain tumors can cause swelling, monitoring neurological symptoms and considering supportive care like steroids if needed may also be beneficial. If tolerable, Fenbendazole is usually the preferred first choice for dogs, but Mebendazole could be considered if better brain penetration is required.
Hello … I was diagnosed with stage 4 prostate cancer three years ago. I am now 71 years of age, weigh 185lbs and otherwise in good health. My oncologist has me taking 1000 mg of Abiraterone daily and also 5 mg of Prednisone twice daily. I have acquired Fenbendazole liquid, suspension 10% (100mg/ml). Is there any known contraindication when using these together? I do also take vitamin D3 with K2 daily and also Maitake mushroom powder once daily in morning coffee. Please advise me regarding a recognized protocol (dosing for the liquid). Packaging states approx. 3 – 3.5 ml daily. Maybe I should acquire tablets instead of liquid, or is the liquid OK? Thanks in advance!
Hello, Douglas! Thank you for a question.
There’s no direct evidence that fenbendazole interacts negatively with abiraterone or prednisone, but potential CYP3A4 interactions and liver stress should be considered. Tablets or liquid make no real-life difference. Also, we recommend some supplements for liver health: milk thistle, curcumin, and alpha-lipoic acid.
Hallo,
Meine 9j Hündin hatte im Dez24 eine OP, Analdrüsenkarzinom und eine Lymphknotenmetastase wurden entfernt. Jetzt 7 Monate später hat sie eine Lymphknotenmetastase. Habe nun mit Fenbendazol ( Panacur 250mg) 1x tgl morgens ins Futter begonnen. Nach welchem Protokoll soll ich weiter machen? 4 Tage geben, 3 Tage Pause? Soll Mariendistel dazugegeben werden ( täglich? durchgehend?) oder andere Nahrungsergänzung? Bitte um baldige Antwort
VG, Susanne
Hello, Susanne.
Supplements to support the protocol:
Milk Thistle: Yes. Use daily to support liver detoxification.
Use standardized extract (silymarin), dosing by weight. Continuous use is safe.
Curcumin: Anti-inflammatory, may inhibit cancer signaling pathways. Use bioavailable form (with piperine or liposomal).
Vitamin E: Natural form (d-alpha tocopherol).
CBD Oil (optional): Anti-inflammatory and possible antitumor effects.
Start with low dose, monitor sedation.
Turkey Tail Mushroom: Strong immune modulator (PSK/PSP). Safe daily.
Omega-3s: Fish oil or krill oil. Anti-inflammatory and may slow cancer progression.
250 mg fenbendazole (Panacur) once daily is appropriate for medium to large dogs, assuming weight ~15–25 kg
Some give it daily long-term without breaks, but at least a few day breaks in a week may reduce liver strain.
Hello, why my question is removed without reply ?
Your message has not been deleted, we just receive a lot of requests and do not always have time to answer and accept your messages on the same day. So sometimes readers have to wait until their question is published and answered. We apologize for the inconvenience, but this way we also ensure the order of the comments section so that readers do not see spam, advertising and unrelated bot posts.
Hello, can you please tell me if it is safe to take Fenbendazole if you are having daily Heparin injections?
Many thanks.
Hello, Carole. Thank you for a question!
There are no reports of fenbendazole altering heparin’s anticoagulant effects, but since heparin affects blood clotting, caution is always advised when adding new medications or supplements.
While fenbendazole does not have known anticoagulant effects, if it affects liver function or metabolism, it could potentially influence heparin’s efficacy, increasing bleeding risk in rare cases.
Fenbendazole is metabolized in the liver, and although it’s not known to affect blood clotting directly, any liver strain could theoretically impact how the body processes heparin.
We recommend taking liver supplements in any case when someone is taking fenben: curcumin/turmeric, milk thistle, or alpha-lipoic acid are recommended.
For my 14 kg dog with a brain tumor, should I take fenbendazole or mebendazole and what would be the dosage?
Mebendazole passes the blood-brain barrier better, so mebendazole could be better in your case. Dosage is the same as fenben, as commented in a previous comment of yours.
Thank you for your reply. I bought mebendazole but it comes in 100mg tablets. In this case, when should I give it to my 14kg dog? According to the box, I should take 3 tablets a day, but should I follow the directions on the box or should I give a higher dose? I also give him CBD curcumin and milk thistle? I have read that some people take additional ivermictin. Is it necessary? If I give him fenbendazole and mebendazole, would it be too much?
Dear Iris,
For a 14kg dog, Mebendazole dosing in veterinary use is not as well established as Fenbendazole. The standard human dosing instructions on the box may not apply to dogs, as they metabolize the drug differently. If choosing Mebendazole, a common veterinary dosage is 20-40mg per kg per day, which would be 280-560mg daily for a 14kg dog. This is significantly higher than the human recommendation, so consulting a veterinarian for precise dosing would be ideal. Fenbendazole and Mebendazole work through a similar mechanism, so using both together may not provide additional benefit and could increase the risk of gastrointestinal upset or liver strain. CBD, curcumin, and milk thistle can be supportive additions, particularly for inflammation and liver protection. Ivermectin can also be used alongside if desired, as some protocols include it for its potential benefits, but it is not strictly necessary.
Hello,
My mom has been diagnosed with pancreatic cancer 4th stage, many metastasis in liver, one in vessel, damaged lymphatic nodes around pancreas. She is 72, weight was 59. She use 444mg fenbendazole 2 times per day + 4,7ml of 1% ivermectin once per day. 6 days + 1 day off protocol. She also take milk thistle, tumeric, D+k2, zink, black cumin oil, apricot carnels, C, qwercitin, omega-3.
It is 11th day of treatment. She got +1kg and feels better but she got allergy, skin itchy, Maybe its time to have more day offs or lower the dose?
Thanks
Hello, Paul, thank you for a question.
Yes, both fenbendazole and ivermectin can cause itching (pruritus) and rashes as side effects, though they are generally uncommon. This could also be due to an allergic reaction or a die-off effect (when parasites or other pathogens die, releasing toxins). In general, mild itching or rash is uncommon (<1-5%). Your mother could wait a little bit If itching is mild, it may go away on its own. If severe (swelling, breathing issues, or widespread rash), seek medical attention and take a break on your protocols. Also, antihistamines (like cetirizine or diphenhydramine) can potentially help with itching.
Thank you! The rush was over all body. We stopped ivermectin, used antihistamines + reosorbilact and it is gone in 5-7 days. Started again with lover dosage but analysis shows allergic reaction again so we decided to try ivermectin only 4 days + 3 day offs.
She is losing weight a lot. She lost 10 kg in the last year and now 3 kg in last month when using Fenbendazole and Ivermectin. What can be used to help her gain a weight at least a little?
Hello, Paul.
Cancer-related weight loss, or cachexia, is a complex condition involving muscle wasting, fat loss, and metabolic changes. Here are some of the most commonly used strategies to help preserve weight or slow down weight loss in cancer patients:
1. Appetite Stimulants & Medications
Megestrol Acetate (Megace) – Boosts appetite and weight gain.
Dronabinol (Marinol, THC) – Helps with appetite and nausea.
Mirtazapine (Remeron), Olanzapine (Zyprexa) – Increase appetite, good for nausea/depression.
Corticosteroids (Dexamethasone, Prednisone) – Temporary appetite boost.
L-Carnitine, Omega-3s – May reduce muscle loss.
2. Nutrition & Supplements
High-Calorie, High-Protein Diet – Small, frequent meals with protein and healthy fats.
Oral Nutritional Supplements (Ensure, Boost) – Easy extra calories.
BCAAs, Testosterone Therapy – Help preserve muscle.
3. Treat Underlying Issues
Pain & Nausea Control – Ensures better food intake.
Enzyme Supplements (Creon) – Help digestion if needed.
Anti-Inflammatories (Omega-3, Curcumin) – May slow muscle loss.
We also recommend consulting a healthcare professional for an evaluation of what could be done. It is hard to consult without knowing what she is using already and how medicine can interact with each other.
Good morning ,
My mother has ALK+ lung cancer. She will undergo gene therapy to treat her cancer. Can you tell me if fenbendazole and ivermectin can be combined with this therapy? If yes, what is the recommended dosage? She weighs 62 kg.
Thank you in advance for your feedback.
Courage to all
Hello, Thibault.
Some gene therapies sensitize cancer cells to treatments like chemotherapy or radiation. Since fenbendazole has some similarities to microtubule-inhibiting chemotherapy drugs, it’s possible that a synergistic effect could exist.
Ivermectin has been studied for its role in overcoming drug resistance in some cancers, which could potentially support gene therapy efficacy.
On the other hand, gene therapy is highly specific, and adding other agents like fenbendazole/ivermectin might alter immune responses or affect how gene therapy functions.
I have liquid fenbendazole (100mg/ml) for my 14-kilogram dog with brain cancer. What is the correct dosage in milliliters? I haven’t been able to find the correct dosage for the liquid form.
Hello, Iris and thank your a question.
For a 14 kg dog, it should be approximately:
Total Daily Dose: 14 kg × 50 mg/kg = 700 mg
Liquid Fenbendazole Concentration: 100 mg/ml
Volume to Administer: 700 mg ÷ 100 mg/ml = 7 ml
Hi my dad has been diagnosed with stage 3 or 4 cancer. 81 year old Waiting on biopsy. I have joined so many group chat that’s its over whelming. Can you please tell me if I should start him on 222 or 444 Feb. Approx weight is 78kilo. Also do I add ivermectin with Feb. Thanking you in advance .
Hello Barbara,
For your father’s weight of approximately 78 kg, the recommended Fenbendazole dosage is 222 mg per day, following a schedule of 6 days on, 1 day off. If you would like to confirm the correct dosage, you can use the dosage calculator available here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Regarding Ivermectin, we do not provide guidance on its use. If you are considering adding it to his protocol, it would be best to consult a healthcare professional or continue researching reputable sources. Let me know if you have any other questions.
I have been diagnosed with hyper eosinophilic syndrome. Which is a condition where my body is producing too many eosinophils. I recently found a study from the nih ( https://pmc.ncbi.nlm.nih.gov/articles/PMC9413524/ )showing that Fenbendazole lowers eosinophil counts. Are you familiar with this effect of fenbenazole? And what protocol would you recommend, i.e. dosing? I have a pulmonologist who wants to put me on a biologic.( Fasenra by AstraZeneca )Given the history of pharmaceuticals with the most recent pandemic I’m a little skittish to start injecting myself, if there’s another drug like Fenbenzole that could possibly render promising results, without the risks, or the risks of the unknown. I would love to hear your opinion. Thank you in advance for your time.
Hello, Brian. Great question!
Yes, a study on dogs infected with hookworms demonstrated a significant decrease in eosinophil counts after treatment with fenbendazole. The eosinophil count reduced significantly from 6.83 ± 0.53 on day 0 to 3.07 ± 0.26 on day 30.
Additionally, in a mouse model of allergic airway disease, fenbendazole treatment resulted in a lower number of eosinophils in the bronchoalveolar lavage fluid. This suggests that fenbendazole may have immunomodulatory effects beyond its antiparasitic action.
In studies involving animals (such as mice), doses were weight-adjusted and aimed at reducing eosinophilic inflammation, but human applications remain unclear.
If you decide to try fenbendazole, we know that 222-444 mg does not usually have adverse effects if you take care of liver health. So you may try to start slow and gradually increase dosage slowly and safely; also, take blood tests to see if its working and if your liver enzyme levels are in check.
I have liquid fenbendazole. What is conversion amount
Dear Diana,
The conversion amount depends on the concentration of your liquid Fenbendazole. Most liquid formulations specify the amount of Fenbendazole per milliliter (mg/mL) on the packaging. To determine how much liquid you need, divide your required dose by the concentration of your product.
If you are unsure whether you need a 222 mg or 444 mg dose, you can use the dosage calculator available here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/ by entering your body weight to find the appropriate dosage.
My sister is taking 222mg of fenbendazole with a break every 6 days. She has metastatic colon cancer with a huge liver mass. The fenbendazole did not affect her liver enzymes, but her daughter and I think that every time we give it, she gets tired and kind of in and out of dreams. Have you ever heard of a decline in mental status with the fenbendazole.. She does not have brain mets. We took her off of it when she got cholangitis and she got clear again. We gave it to her last night and she is back to the tired, goofy state. I hate to stop it with her bad cancer. She also takes Ivermectin at 2mg per kilogram.
Hello, Pam.
Fenbendazole has never caused this to anyone. So-called “brain fog” is not one of its side effects. On the other hand, ivermectin can cause these symptoms as it interacts with GABA receptors in the brain, especially in cases of blood-brain barrier permeability issues. There are much more instances when people have to pause or end ivermectin protocols due to side effects – but not fenbendazole.
Hi Pam, you said that “She also takes Ivermectin at 2mg per kilogram.” That’s 10 times more than the recommended dosage whichbis 0.2mg/Kg.
How do you go about taking Fenbendazole and Ivermectin ? Can both be taking at the same time? If so how do you go about this? How should they be administered?
Hello, Kristine, and thank you for a question!
Yes, fenbendazole and ivermectin usually can be taken together.
Fenbendazole: Commonly taken at 222 mg (one 1 g packet of Panacur C 10%) daily with food, often for 3-7 days on, then 4 days off, depending on protocol. It’s usually well tolerated.
Ivermectin: Often taken at 0.2 mg/kg once or twice weekly (varies by protocol). Some take it every other day. It’s best absorbed with food.
Fenbendazole is generally more tolerable; ivermectin more often causes mild side effects like dizziness or fatigue in some. Be sure to use our fenbendazole dosage calculator to know your dosage. Also dont forget to take supplements to support your liver function
Good afternoon! Could you please advise me? My father has pancreatic cancer with a 3.5 cm tumor in the head of the pancreas, causing bile duct obstruction. A stent was placed to drain the bile, but it became blocked as well. Now the bile flow has been redirected externally, and the gallbladder has been removed. The surgery took place on January 10th. On January 17th, the doctor attempted to check the bile duct through the stent, but it triggered a fever and pain. On January 20th, the blood tests worsened—ALT and AST levels increased. On January 21st, he started taking fenbendazole and milk thistle. By January 27th, ALT and AST levels were still elevated, but now AST was twice as high as ALT (50 and 102 values). The doctors also convinced my father to consume bile with food, using alcoholic beer for this purpose. Could this have affected the ALT and AST levels? How can we support liver function so he can continue taking fenbendazole and add ivermectin? Thank you in advance for your response.
Hello, Wadim.
We are very sorry your father is going through this. Given his situation, there are a few key factors to consider:
1. ALT & AST Elevation Causes
Biliary obstruction and infection: The bile stent blockage and external drainage suggest potential cholestasis or infection, which can stress the liver and elevate ALT/AST.
Post-surgical stress: The recent surgery (January 10) and subsequent procedure (January 17) could have temporarily affected liver function.
Alcoholic beer consumption: Even small amounts of alcohol can put additional strain on the liver, especially if bile flow is impaired.
Fenbendazole & Milk Thistle: While fenbendazole is generally considered liver-safe, some people report mild liver enzyme elevations. Milk thistle is typically hepatoprotective, but reactions can vary.
2. Supporting Liver Function
Dietary Adjustments:
Avoid alcohol entirely—it can further stress an already compromised liver.
Consume easily digestible foods (e.g., boiled vegetables, lean protein, and healthy fats in moderation).
Increase hydration to support detoxification.
Supplements:
Milk thistle (which he’s already taking) may help protect liver cells.
NAC (N-acetylcysteine): A strong antioxidant that supports liver detoxification.
TUDCA (tauroursodeoxycholic acid): Often used for bile flow issues and liver protection.
Monitoring:
Keep checking liver enzymes and bilirubin levels.
If jaundice worsens, or if there’s a significant increase in AST/ALT, further medical evaluation is needed.
Hello, thanks for all the information available on this site. My husband has early stage prostate cancer. His PSA has been at 18-20 for over a year and half & MRI detected a size of tumor to be 12mm. He has been doing many natural therapies and just ready to start on Fenben. We have 500mg caps and after listening to Dr John Campell recently where he was reviewing the Clinical case studies and they were following the original protocol of 1g 3 days per week with 4 days off in conjunction with Vit e, CBD and curcumin. He is looking for guidance as he is healthy in every other aspect & we do keep an eye on his liver. His recent bloods had his AST @ 57 and ALT 2 47. He weighs 70kg and we are just a little concerned that the 1g could be too high for his liver. We would appreciate your guidance
Hello, Leita, thank you for a question.
We do not recommend such a high dose. However, it is up to you to decide. We would suggest at least to start at a little bit lower dose and increase after no side effects were monitored. When increasing dosage, take liver enzyme tests every few weeks and test every few months after you have reached the desired dose. 1 gram is usually a bit high for about half of the people, but if your husband’s overall health is good, you may very well try it. Don’t forget supplements that are beneficial for the liver and support its functions.
Best regards!
Thank you
Hi, thank you for this wonderful site.
My wife has glioblastoma, she had undergone surgery to remove the tumor. She has completed her 40 radiation cycle and 6 months of temozolomide (5 days in a month for 6 months). She is taking alternative medicine (CBD oil , Curcumin and Indian ginseng or winter cherry). She is doing fine right now.
Wanted to check, should she take Mebendazole or fenbendazole for glioblastoma?
Hello, Pratik
Studies reveal that both fenbendazole and mebendazole possess the capacity to penetrate the blood-brain barrier. However, mebendazole shows better results in this case.
Thank you. Do you recommend any other medication apart from mebendazole, CBD oil, Curcumin, Indian Genseng? would taking ivermectin be beneficial? Also, read somewhere that Albendazole is also helpful. What do you recommend for brain cancer, glioblastoma? mebendazole, fenbendazole Or albendazole?
Dear Pratik,
Mebendazole, Fenbendazole, and Albendazole have all been explored for their potential benefits in glioblastoma, but Mebendazole is generally preferred due to its stronger ability to penetrate the blood-brain barrier and its promising results in research and some cases. Fenbendazole also crosses the blood-brain barrier and works similarly by disrupting microtubule function, but Mebendazole has shown better outcomes for brain tumors. Albendazole has some anti-cancer properties as well, but it may not be as effective in reaching the brain.
Ivermectin has demonstrated anti-cancer and anti-inflammatory effects, and some research suggests it may enhance other treatments, so it could be considered as part of a broader protocol. Additionally, metabolic therapies such as DCA (Dichloroacetate) and 2DG (2-Deoxy-D-Glucose) have been studied for glioblastoma due to their ability to interfere with cancer cell metabolism and make tumors more vulnerable to treatment.
If deciding between Mebendazole, Fenbendazole, and Albendazole for glioblastoma, Mebendazole is the most widely studied and appears to be the best option. However, combining it with metabolic approaches such as DCA or 2DG may further improve effectiveness. Let me know if you need more information on dosing and protocols.
Hello,
thank you for your reply on Glioblastoma
Post Jan’s 2025 MRI, Oncologist suggested to take bevasizumab for 9 cycles (once in 2 weeks) and Lomustine – CCNU (once in 6 weeks). She has already taken 7 cycles out of 9. We again did an MRI on 10th June 2025 post 7 cycles of Bev and CCNU, her overall tumor size is a bit reduced, but it has very slightly grown to new adjoining area.
Now, oncologist is recommending to go for Gamma delta T-cell therapy. I am a bit hesitant on this treatment since its relatively new and not many side effects are known.
I have started my wife to take 200 mg of mebendazole daily (her weight is 75kg) since the last 4 days. Do you suggest she up her dose? or start any other medicine like ivermectine or anything else?
How soon does mebendazole show some positive results?
Hello, Pratik, and thank you for the follow-up.
Mebendazole usually shows some results around 2-3 months of usage. However, every organism is different and responds to this compound at its own rate, so it is difficult to predict the level of outcome and a time period. Given that your wife is 75 kg and does not have adverse effects, she may try to increase the dosage to 300–400 mg. Always monitor her well-being, overall health, and liver enzyme levels. If needed, you can do a pause or a cutbackto a previous dose.
My husband has rectal cancer stage 3 adenocarcinoma. He is just starting on fenben. He also has been taking ivermectin. A survivor we have come across recommends 1000 mg of fenben 3x a day. I see yours says 444 mg. Is taking 3000 mg ok?
Dear Doreen,
It is understandable to look for the most effective approach when starting a protocol, but taking such a high dose of fenbendazole, like 1000 mg three times a day (3000 mg total), could be very risky. Fenbendazole, though generally considered safe at standard doses, is metabolized in the liver. Extremely high doses may overwhelm the liver, leading to toxicity and potentially causing damage to this vital organ. Additionally, such high doses could strain the gastrointestinal system, causing nausea, vomiting, or diarrhea, and could even impact kidney function over time.
The recommended dose of 444 mg is calculated based on weight to ensure efficacy while minimizing the risk of side effects. Some individuals who report tolerating very high doses might have unique biological factors, such as particularly efficient liver metabolism or a history of slowly escalating doses that allowed their bodies to adapt. However, this is not typical and does not guarantee safety for others.
For your husband, starting with the recommended weight-based dose (444 mg for those over 90 kg) is the safest approach. The goal is long-term, consistent use rather than overwhelming the system with excessively high amounts. Following the standard protocol is more likely to provide benefits without unnecessary risks. Always monitor for any side effects and consider supporting liver health with supplements like milk thistle. Wishing your husband strength and success on his journey.
Hi,
Thank you for your reply. We met a senior oncologist and he’s prescribing bevacizumas 400 mg injection every 2 week and lomustine 120mg every 6 weeks (since her cancer has progressed since last scan in August 2024). This will continue for 3 months.
I wanted to check if mebendazole can be taken with these 2 medicines?
Hello, Pratik.
There are no well-documented interactions between bevacizumab and mebendazole in standard drug interaction databases. However, often times benzimidazoles work synergistically with lots of other cancer therapies. Lomustine is metabolized in the liver, and while mebendazole is also processed hepatically, its effect on lomustine metabolism is unclear. So we would suggest paying extra attention to your liver health and taking liver enzyme blood tests at least every 2-3 months to monitor your condition.
SKIN CANCERS – Basil Cell & Squama cell carcinomas. Would fenbendazole be useful either topically or internally?
Hello John,
Yes, fenbendazole may have potential benefits for skin cancers like basal cell and squamous cell carcinomas, but it is generally used internally as part of a broader protocol. Its anti-cancer effects stem from disrupting cancer cell metabolism and inhibiting microtubule formation, which can slow the growth and spread of cancer cells. While there is limited evidence about topical use, some have explored applying it directly with oils or creams. Internally, it is often taken as 222mg (or adjusted based on weight) for 6 days a week, combined with other supportive therapies. Always monitor your response and adjust as needed!
I was diagnosed in 2020 with sclc stage 1. When a biopsy was done, my lung was accidentally punctured and I had to have a chest tube and spent 7 days in the hospital. The following month I had sbrt because they said I was not a candidate for surgery. I kept getting scans every 3 to 6 months and again in 2023 they said there was another nodule (again stage 1) that indicated cancer again near the same area as the other one. Again I had sbrt. My ribs are damaged from the sbrt now but so far they say there is no new growth of the cancer. Can you help me with figuring out a protocol of fenbendazole, ivermectin and whatever else? How long do I need to do the protocol? Thank you.
Dear Gale,
Fenbendazole has been used by many as part of a long-term protocol for cancer management and prevention of recurrence. The protocol for fenbendazole is generally designed for extended use, often involving taking it for 6 days on and 1 day off per week, depending on individual tolerance and response. I recommend using the dosage calculator available here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. This tool will help you determine the correct dose based on your weight. At the bottom of the page, you will also find a detailed explanation of the usage schedule and additional important tips.
Ivermectin is commonly added to protocols, often taken 2-3 times per week at 0.2–0.4 mg per kg of body weight, but this should also be adjusted based on your specific needs and tolerance. Many people include supplements like curcumin, quercetin, vitamin D3, and others to further support their overall health and immune system. Since your ribs have been damaged from SBRT, ensuring you are supporting bone health with adequate calcium, magnesium, and vitamin K2 may also be helpful.
The protocol is typically followed long-term, with regular breaks (such as one day off per week) to allow your body to rest and adjust. Consistency over time is key, as this approach is not a quick fix but a sustained effort to manage and prevent recurrence. I hope this information helps, and I wish you strength and success on your path to recovery and health.
Which CBD should I use ?
Hello John,
For cancer, full-spectrum CBD is often recommended due to the entourage effect, where all cannabinoids and terpenes work together to enhance therapeutic benefits. It contains a small amount of THC (usually less than 0.3%), which some studies suggest may boost CBD’s effectiveness in managing symptoms and supporting overall treatment. If THC is a concern, broad-spectrum CBD can be a good alternative, as it includes other beneficial compounds without THC. Always choose a high-quality product from a reputable source with third-party lab testing to ensure purity and potency.
Can I go by weight for horse and how much per day and days
Hello, Don.
If you use it for deworming reasons for a horse, then you may use 10 mg per 1 kg of body weight. So, for example, if a horse weighs about 400 kg, you should give around 4000 mg of fenbendazole once a day for 5 days in a row. Repeat after 3 weeks. If unhatched parasite eggs are suspected, repeat the procedure in another round after 3 weeks to make sure the deworming is complete.
It may take a lot of time and effort to treat certain parasite infestations. If this is the case, please continue the deworming procedure every 2-3 weeks until there is no evidence of parasites and the animal’s health has improved.
Even if your animal feels better, the entire treatment plan should be completed to prevent relapse or the development of resistance.
My friend has stage 4 pancreatic cancer and is now on palliative care only, he was diagnosed in October 2022. He is on oxinorm and oxicodone for pain relief, 75mg aspirin, creon 25000, esomeprazole clonmel 40mg, senokot, desunin D3 and zanax and insulin. He has Haemochromatosis too. He started on fenbendazole 222mg about 5 weeks ago and ivermectin 1.5ml orally of the 1% injectable solution, bimectin 3 weeks ago. He doubled both the fenbendazole and ivermectin over the last few days. He does take cbd drops and dandelion root. My question is about the other supplements that I have purchased for him as we are afraid of possible interactions with all the other medications he is taking and his other health issue. I got turkeytail mushroom extract, berberine, curcumin, quercetin, green tea extract, Vitamin E capsules, serrapeptase, milk thistle, mistletoe and zinc. Which if any are safe to take? He was in hospital 2 weeks ago with a temperature, they did a scan and blood tests. The doctor was surprised and happy to see that there was no blockage in his bile duct as they suspected and his liver enzymes had dropped from 577 to 280 in a couple of weeks. He is very tired and has no appetite and is starting to lose hope.
Hello,
You are doing an amazing job supporting your friend, and the supplements you have chosen could provide real benefits. Most of them are generally well-tolerated, and while some require a bit of caution, they are unlikely to cause harm if introduced gradually.
Milk thistle, turkey tail mushroom, and zinc can support his liver and immune system. Curcumin, quercetin, and serrapeptase have anti-inflammatory properties that may help with overall well-being. Berberine can support metabolic function, and green tea extract is a great antioxidant. Mistletoe is widely used in integrative cancer care and could offer additional support.
The key is to introduce them slowly, one at a time, and monitor how he feels. The only ones to be cautious with are curcumin and serrapeptase due to their blood-thinning effects when combined with aspirin. Berberine and quercetin can lower blood sugar, so it is good to watch his insulin levels.
The fact that his liver enzymes have already improved significantly is a great sign. Even though he feels tired, his body is still responding and fighting. Keeping his routine simple and manageable will help. You are making a difference, and every bit of care and support matters. Keep going—there is still hope.
My mom has has half of her pancrease removed (whipple surgery) due to Pancreatic cancer and is taking Pancrelipase/CREON in the beginng of every meal. is it safe to take Fenbendazole in the middle of the same meal? Also, there is metastais in the liver now since the cancer returned to the tail of the leftover pancreas, how much dosage should she use for fenbendazole and milk thristile? Thank You so much for your time!
Hello Diana,
I am sorry to hear about your mother’s condition. It is generally safe to take fenbendazole during the same meal as Pancrelipase/CREON. Fenbendazole is best absorbed with fatty foods, so taking it in the middle of a meal with healthy fats like avocado or butter is ideal. The typical dosage is 222mg daily for six days, followed by one day off, but with metastases, some use 444mg daily depending on tolerability. Milk thistle, standardized to 70-80% silymarin, is often used to support liver health, with a typical dose of 150-300mg taken 2-3 times daily. Monitoring liver enzymes is important to ensure everything is well-tolerated. Wishing you and your mother strength and the best possible outcomes.
Husband had surgery for HPV related oral cancer in December 2023, Surgical removal of tonsil, portion of tongue, and lymph nodes on left side of neck. Completed 33 rounds of radiation. Was doing so well, eating well, strong, etc….but now, a year later, has just been told cancer is now on larynx. Doctor has recommended removal of the larynx. We started him on fenben after the first diagnosis of cancer in 2023 and had been using it 3 days on and 4 days off since radiation. We are now back on the fenben daily and about to add CBD. (And trying to get a referral MD Anderson for 2nd opinion.) Had bladder cancer 3 years ago and now sometimes has slightly elevated kidney numbers. (1)Would it be helpful to take both milk thistle AND tudka?
(2)Also, can you tell us if there have been studies on fenben and oral cancer? Or any testimonies that might be encouraging?
(3)Would a primary care physician order and analyze blood tests or do individuals usually have to do this themselves?
Thank you so much for what you do. We appreciate your response so much.
Dear Lainie,
Thank you for sharing your husband’s journey, and I am sorry to hear about the recent challenges. Taking both milk thistle and TUDCA may be beneficial for supporting liver and kidney health. Milk thistle is known for its antioxidant and anti-inflammatory properties, which can help protect liver cells, while TUDCA supports bile flow and reduces liver stress, which may be particularly useful if there are slightly elevated kidney numbers. Both are generally well-tolerated and can be used together to provide comprehensive liver support.
Fenbendazole has shown potential as a treatment option for various types of cancer, including oral cancer, based on numerous reports. Many individuals have shared positive experiences, noting significant improvements when incorporating fenbendazole into their protocols. These accounts often emphasize the importance of combining fenbendazole with other supportive therapies and maintaining a consistent schedule to achieve the best results.
A primary care physician can typically order and analyze blood tests, including liver and kidney function panels, as part of routine care. If you are using supplements or medications like fenbendazole, it is important to monitor these parameters regularly. If your primary care provider is not familiar with your specific needs, you may need to explain the importance of these tests or consider working with a laboratory directly to order and manage them independently. I hope these answers provide some clarity and support. Your proactive approach and dedication to exploring options are commendable, and I wish you and your husband strength and success in his treatment journey.
My wife, in her early 40’s, has a very aggressive colorectal cancer. It’s stage IV, metastatic to liver and lungs. After 5 rounds of FOLFOX proved unsuccessful, she has been placed into hospice care. The tumors on her liver have grown through her abdominal wall and are very near to rupturing the skin just below her ribs/sternum.
What do you think about applying fenbendazole paste directly on the affected area, perhaps mixed with a carrier agent such as DMSO or something milder such as coconut oil? Would the fenben penetrate the skin and directly contact the tumors?
Hello,
I am very sorry to hear about your wife’s condition. Applying fenbendazole paste topically with a carrier agent, such as DMSO or coconut oil, is not a standard method of using this compound. Fenbendazole is typically taken orally, as this allows it to be absorbed into the bloodstream and potentially reach affected areas throughout the body.
While DMSO is known for its ability to penetrate the skin and carry substances into deeper tissues, the effectiveness of using it to deliver fenbendazole directly to tumors is not supported by scientific evidence. There is no clear data to suggest that fenbendazole applied topically in this way would be able to reach or affect tumors beneath the skin or within the abdominal wall.
If you are considering this approach, it is important to carefully evaluate the potential risks, such as skin irritation, unpredictable absorption, or interactions with other treatments your wife may be receiving. Exploring oral administration of fenbendazole according to established protocols might be a more reliable option, as this method has been more widely discussed and used by others in similar circumstances.
It is also crucial to monitor her comfort and overall well-being during any alternative approaches. Ensuring she has support and relief from symptoms during this challenging time is of utmost importance. Wishing you both strength and peace.
I have Pancur 1.5 vet, how would I convert that to human dosage> That is one pill. I am a male 62 and 215 lbs.
Hou much, how often etc.
Thanks
Dear Steven,
The dosing schedule for fenbendazole depends on the condition being treated. If you are taking it for cancer, the recommended dosage for you is 444 mg six days a week, with a one-day break.
Since you are using Panacur 1.5 vet, you will need to calculate the fenbendazole content per pill and ensure the correct human dosage aligns with the recommended 444 mg. To simplify the process, you can use the dosage calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello, Can febendazole be taken together with chlorine dioxide. And also during chemotherapy?
Thanks for answering.
Hello Vero,
We do not have information about the use of chlorine dioxide, so we cannot comment on how it might interact with chemotherapy or fenbendazole. However, fenbendazole is generally considered a safe medication and is not known to interfere with most drugs or therapies.
If you decide to take chlorine dioxide, fenbendazole, and chemotherapy together, it is essential to closely monitor your liver enzymes and overall well-being to ensure safety.
Please note that fenbendazole should be paused two days before starting a chemotherapy course, during the course itself, and for two days after completing the chemotherapy. This precaution helps avoid any potential interactions or added stress on the body during treatment.
Hi there,
Do you have a preference on fenben supplier? And is the animal liquid fenben good enough for humans, as it appears to be cheaper?
I went to fenbendazole.org/supplier that you had mentioned in a previous post—— but the site said it could not be found
Hello, Whitney!
Hello, sorry, but the suppliers section had to be removed due to confidentiality concerns. We do not distribute or sell anything ourselves, so we removed this section because it would cause a lot of controversy and confusion among readers.
However, we would recommend FDA-approved products such as Panacur or Safeguard. Also, if you decide to buy online, we suggest checking out review sites such as Trustpilot. Choose a professional and official company homepage to choose from.
Hi I have stage 3 small cell carcinoma iv had 12 chemo 30 radiation and now doing immunotherapy my last mri revealed a spot on my brain so I’m doing follow up scans then possible surgery them radiation I’m Terrified of this I also have moderate copd and take pain meds cholesterol meds anxiety meds and few supplements including turkey tail someone I met someone who told me how she was stage 4 cancer with 3 mo to live and was kicked out of treatment after refusing the covid vaccines she said she followed your protocol and is now cancer free so she referred me to try it im wondering what u think on it
Hi there!
I’ve been using Curaderm on my Infiltrative BCC (on my nose) for the last 4 weeks and have just started oral Fenbendazole (222mg, 6 days a week). My lesion has gotten much bigger due to the Curaderm, but it doesn’t seem to be healing at all, even though a lot of the redness around it has gone and it looks mostly like a big open sore.
I had read that people have had success using Fenbendazole paste (Horse dewormer?) as a physical application. Has anyone tried this or do you have any suggestions? Could I also open a capsule of my oral Fenbendazole and mix it with some type of oil (emu/coconut/temanu?) and apply it to the lesion as well?
Thanks so much in advance….this is all so scary!
Hello Shawn,
Thank you for sharing your experience, and I understand how concerning this situation must be. It is encouraging that you are already seeing some reduction in redness, which might indicate that the Curaderm is actively targeting the lesion. However, the healing process can take time, and it is not uncommon for such treatments to make the lesion appear worse before improving, as damaged tissue is removed.
Regarding topical application of fenbendazole, while there are reports of its use in this manner, there is no clinical research supporting its effectiveness or safety as a direct topical treatment for skin cancer. Opening a fenbendazole capsule and mixing it with a carrier oil like coconut oil or emu oil could be an option, as these oils are generally gentle on the skin. However, it is essential to perform a small patch test first to ensure there is no irritation or adverse reaction. If you decide to try this, monitor the lesion closely for any signs of worsening or infection.
Keep the area clean, avoid excessive exposure to the sun, and consider using supportive supplements like Vitamin D3 and curcumin, which may promote healing.
Lastly, remember that healing takes time, and setbacks can occur. Stay proactive and positive, and continue exploring options while monitoring your progress carefully.
Thanks so much for the information and encouragement! I appreciate it a lot 🙂
Hi,
Thank you for helping sp many people.
I was diagnosed with stage 4 cancer in May of last year(brain and lung). I did a lot of research and ended up doing my own cocktail at home with chemo.
I am taking Amla + Apricot seeds daily, tumeric/curcmin…and my daily one a day vitamin + extras, vitamin D3 and a few more.
My brain cancer has disappeared and the lung has remained stabled.
What do you recommend for a slim guy at 52kg with stage 4 diagnosis, I’ve stared Fenben, I’m taking 444mg X 6 times a week (skipping Sundays). Should I remain on 444mg or lower it to 222mg?
Thank you
Dear Martin,
Congratulations on the incredible progress you have made, with your brain cancer gone and your lung cancer stable. Your dedication is truly inspiring.
For your fenbendazole dosage, it depends on how you are feeling and your liver health. If you feel good and your liver enzymes are normal, you can continue with 444 mg, six days a week, as it seems effective. However, if you feel unwell or notice liver strain, reduce the dose to 222 mg, which matches your body weight (222 mg daily, six days a week with one day off).
I recommend adding milk thistle to your protocol to support your liver. It is known for reducing liver strain and helping maintain liver health. Additionally, you might explore complementary therapies like Dichloroacetate (DCA) and 2-Deoxy-D-Glucose (2DG), which target cancer cell metabolism and have shown promise in brain and lung cancers. Both work well with fenbendazole in some protocols.
If your liver stays healthy and you feel fine, 444 mg is okay to continue, but lowering it to 222 mg is a good option if needed. Wishing you continued success and strength on your journey.
Hello,
My dad has stage 4 colon cancer with a 4cm solid tumor between the bladder and rectum, and metastasis in the lung and brain. His current treatment is Oxaliplatin with UFT (Uracil and Tegafur) (oral chemo) and Avastin as targeted drug. I want him to start Fenben but I’m too worried about the possible side effects such as diarrhoea. Since his last episode of diarrhoea due to possibly radiation side effects or high dose melatonin of 60mg/night, he has lost a significant amount of weight and simply can’t afford to have another diarrhoea reaction. He’s currently 41kg, so the recommended dose is 222mg/day, 6 days on, 1 day off. I want to follow Joe Tippins current protocol of Fenben and the Ultra Botanica ONCO-ADJUNCT™ 4 PATHWAYS but I don’t know if the Fenben or the 4 pathways will harm his conventional treatment. Do you recommend 222mg/day Fenben + Ultra 4 pathways, along with Tudca for some with gastrointestinal issues like him?
Thank you
Dear Lexi,
Thank you for your question. We are an informational page focusing on fenbendazole, and unfortunately, we do not have information regarding treatments such as Ultra Botanica ONCO-ADJUNCT™ 4 PATHWAYS or its compatibility with conventional therapies. Fenbendazole itself has been reported to occasionally cause gastrointestinal side effects, including diarrhea. Given your father’s low weight and his history of significant weight loss due to diarrhea, this side effect could pose additional risks to his health. If you decide to proceed with this treatment, it will be crucial to carefully monitor his overall well-being and regularly check blood parameters to ensure his body tolerates it well.
To help prevent diarrhea, you could start with a lower dose of fenbendazole than the recommended 222mg per day, gradually increasing it if he tolerates it well. It is also important to ensure fenbendazole is taken with food, as this can improve absorption and reduce gastrointestinal irritation. Staying well-hydrated throughout the day is equally essential to support digestive health. You might also consider incorporating supportive measures, such as TUDCA (tauroursodeoxycholic acid) to protect and support the gastrointestinal system, and probiotics to maintain gut balance. Additionally, focusing on easily digestible, nutrient-rich meals and avoiding foods that are high in fat or overly spicy may further reduce the risk of digestive discomfort.
Introducing any new treatment must be done cautiously, especially considering your father’s current health challenges. Regular monitoring and a gradual approach can help minimize risks while supporting his overall health. We wish you and your father strength and positive progress in his journey.
Hello I have advanced prostate cancer stage 4 with bone metastases in my knee, shoulder, sternum, ribs, pelvis, spine. I have a Zolodex injection every 12 weeks and take 160mg enzalutamide daily. In addition, I have blood pressure tablets – 2mg candesartan, 10mg amlodopine. I am 91kg and 60 years old. My current PSA is 0.52 (doubling every 8-10 weeks).
I am looking to start taking fendendazole – I note that the calculator changes dosage between 222mg and 444mg depending on whether my weight is below/above 90kg. I am currently 91kg but may well fluctuate around this figure. It seems strange for the dose to double after a 1kg difference in weight. Can you please advise what someone borderline like me should do?
Is there any data on how fenbendazole interacts with the medication I am taking (zolodex, enzalutamide, candesartan, amlodopine)?
The recommended curcumin appears to interact with certain chemo drugs – I am hoping to put chemo off for as long as possible, but are there any that you know fenbendazole should not be taken with?
Is there any data for how long it takes for fenbendazole to have an effect?
Are there particular times of day that the fenbendazole and supplements should be taken to maximise absorption and effectiveness?
Thank you!
Hello Barry,
Thank you for reaching out with your questions.
For a weight of 91 kg, a dose of 444 mg of fenbendazole per day is within the recommended range. However, considering your advanced condition and the medications you are currently taking, it may be advisable to start with a lower dose of 222 mg per day. This would allow your body to adjust gradually. After a few weeks, if you experience no adverse effects, you may consider increasing the dose to 444 mg per day.
Fenbendazole is generally a safe and well-tolerated medication, and it rarely has interactions with other drugs or supplements. Currently, there are no documented drug interactions with fenbendazole. Nevertheless, it is recommended to monitor liver enzymes regularly while using fenbendazole, as with any new supplement or drug addition, especially in the context of long-term usage. To support liver health, you might also consider using milk thistle as part of your regimen, which is often advised when taking fenbendazole.
Fenbendazole is a long-term treatment, and it typically requires two to four months of consistent use to begin seeing potential benefits or improvement. The effects are gradual, so patience and consistency are key.
For more information on supplements that may be beneficial to take alongside fenbendazole, please refer to this link: https://www.fenbendazole.org/fenbendazole-information/supplements/
There is no strict timing required for taking fenbendazole; however, taking it with food can help with absorption. The same applies to most supplements, although it is always best to follow any specific instructions provided with individual supplements to maximize their effectiveness.
Please do not hesitate to reach out if you have further questions. Wishing you all the best on your journey to health.
Good morning. My Labrador Retriever was diagnosed with Oral Squamous Cell Carcinoma last week and am looking for something to help her. I found fenbendazole, as well as your calculator, but I am seeing differences in the dosing amounts. Can you clarify the correct dosing please? Your calculator is calling for 666mg per day for a 100# canine, whereas “Safe-Guard” is calling for 1g per 10# of body weight. This would put her at 10g or 10,000mg per day. I just want to clarify the correct amount prior to dosing.
Hello Michael,
Thank you for your question. For a 100lb dog, the cancer support dose of fenbendazole is indeed 666mg per day, as indicated by the calculator. However, it is important to note that the “Safe-Guard” packets contain only 22.2% fenbendazole, meaning each 1-gram packet provides 222mg of active fenbendazole.
Therefore, to reach the 666mg daily dose, you would need three 1-gram packets of Safe-Guard per day for a 100lb dog. The dosing discrepancy you are seeing is due to the fact that Safe-Guard is not pure fenbendazole; it contains additional ingredients.
Please carefully check the dosage information on the Safe-Guard package to ensure your dog receives the correct amount of active fenbendazole.
Understood. Thank you for the explanation.
Hi. I have stage 4 large diffuse b-cell lymphoma .Have there been any reports of fenbendazole working on my type of cancer.
Thanks mal
Hello Malcomn,
There have indeed been accounts of people with different types of lymphoma, including diffuse large B-cell lymphoma, using fenbendazole as part of their treatment plan. While formal studies specifically targeting this cancer type are limited, some individuals have shared positive experiences when integrating fenbendazole into a comprehensive approach.
If you are thinking about adding fenbendazole, it is essential to select the right dose and schedule. You can use this calculator to guide you: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Wishing you all the best on your journey.
Good Morning,
Thank you for all the information shared. I would like to know if Fenbendazole could be used for breast cancer? if so, could it be used at the same time with chemotherapy?
Hello Anna,
Thank you for reaching out. Yes, fenbendazole has shown promising results for breast cancer in various reports and experiences. It may indeed be used alongside chemotherapy; however, it is advisable to pause fenbendazole use two days before chemotherapy and resume two days after the chemotherapy session. This approach allows for optimal effectiveness while minimizing potential interactions.
Hi Anna,
Have you started taking Fenbendazole? What is the dosage? How do you feel after fenbendazole if you take it? What is the stage of your breast cancer? How do you monitor your liver and kidneys? Do you take other supplements? What exactly and what is the dosage?
I will appreciate it if you can answer me. Thank you and have a nice day
Hello!
I’m writing on behalf of my father, a 70-year-old male, currently weighing around 150 pounds (although his ideal weight is closer to 160). He was diagnosed with stage 3C melanoma in 2023. Initially, the melanoma was located on his back, but during his annual checkup in spring 2024, we discovered that it had spread to other areas, and his oncologist upgraded the diagnosis to stage 4.
Since then, he’s undergone four rounds of Opdivo and Yervoy (at four-week intervals). However, this treatment didn’t yield positive results. Instead, it caused severe side effects, which included:
• Major side pain: This subsided after transitioning to a very limited, almost no-sugar diet.
• Severe restless legs: At one point, this kept him awake for nearly a week, though it has since improved.
• Swelling: First his feet, then his ankles, and eventually his legs.
• Rash: This developed on his lower legs.
• Extreme bloating: This is still ongoing, and we believe it’s partially related to the treatment.
Since he has been off the dual immunotherapy treatment for a few weeks, these side effects have slowly improved, though some are still lingering.
Following the four rounds of dual treatment, another PET scan revealed the cancer had spread further, reaching the liver lining and stomach. His oncologist explained that the bloating could be due to the cancer occupying space in the stomach and possibly restricting circulation to his lower extremities (which likely caused the swelling).
Given that both Keytruda and the Opdivo-Yervoy combination (both immunotherapy treatments) have failed, we are now preparing to start targeted therapy pills (Braftovi and Mektovi) to address the cancer in the stomach. However, this has been delayed due to liver dysfunction caused by the dual immunotherapy. Thankfully, he is responding well to Prednisone for this issue.
Over the past few weeks, my father has been off dual treatment, continuing on a very strict, almost zero-sugar diet, high in fiber, and we’ve been applying Queen of Thrones castor oil to his liver nightly. We are also extremely interested in introducing Fenbendazole alongside the targeted treatment. We’ve already discussed this with his oncologist, who only requested we inform him if we start Fenbendazole.
We did try using the FenBen dosage calculator, but we are unsure about the proper dosage for treating an active case of cancer. We are also concerned about the impact of his current weight (150 lbs) versus his ideal weight (160 lbs) and how that influences the dosage recommendation. Any insights on this would be greatly appreciated.
This leads me to a crucial question: Given the severe side effects of the dual immunotherapy (and its lack of efficacy), we are genuinely wondering if it’s even worth starting the targeted pills at all. We’ve read that many treatments eventually lose effectiveness as the body builds resistance, whereas Fenbendazole seems to work differently and may not face the same issue.
I’ve seen countless of positive testimonials about Fenbendazole’s effectiveness against cancer. I’d love any advice or shared experiences regarding:
1. Fenbendazole dosage recommendations for an active fight against stage 4 melanoma, considering his liver and stomach involvement.
2. Safety or compatibility of Fenbendazole with the targeted pills (Braftovi and Mektovi), should we decide to pursue both routes.
3. Any insights or tips from those who have had similar experiences with melanoma, particularly at this advanced stage.
As I’m sure you can understand, we’re trying to make the best decisions possible, and I greatly appreciate any input or guidance.
Hello,
It is encouraging that you are considering incorporating Fenbendazole into your father’s treatment plan. According to the dosage guide, for an individual weighing 150 lbs, the recommended dosage is 222 mg per day, administered 6 days per week with 1 day off. It is advisable to take Fenbendazole with food to enhance absorption and minimize potential side effects. Despite your father being slightly below his ideal weight, the 222 mg dosage remains appropriate, although his condition should be monitored and adjusted as necessary.
Regarding the combination of Fenbendazole with Braftovi and Mektovi, it is positive that his oncologist is aware of and supports the use of Fenbendazole. This drug functions differently from conventional therapies and is generally well-tolerated. Keeping his oncologist informed is essential to prevent any unexpected interactions. In most instances, Fenbendazole has been safely combined with other cancer treatments.
Many patients with advanced melanoma have successfully integrated Fenbendazole into their treatment regimen, reporting tumor reduction and overall health improvements. Given your father’s positive response to prednisone and the dietary changes that have helped alleviate side effects, continuing these supportive measures alongside Fenbendazole could be beneficial. Additionally, a liver-support supplement, such as Milk Thistle, may be considered to further support liver function.
If you decide to proceed with both Fenbendazole and the targeted therapy, regular monitoring of liver enzyme levels and overall health is crucial. Many individuals have experienced favorable outcomes with Fenbendazole, and it is commendable that you are exploring all available options. Wishing you and your father continued strength and success in this journey.
Hello – does Fenben have any interactions with Viagra?
Dear Angela,
There are no known significant interactions between Fenbendazole and Viagra (sildenafil). However, since both medications are processed by the liver, if your partner has any liver conditions or is taking other medications that could affect liver function, it would be wise for him to monitor his health closely.
Thank you. Sorry for my slow response. I stopped FenBen until 09/13, and the new numbers are
AST 140
ATL 78
Still high, but I’m not as stressed. I was starting to have more pain after no FenBen for a couple of weeks, so have now resumed @ 222mg/day, with 4 days on, and 3 days off being the plan. All the other liver numbers were within normal ranges.
Should I consider 3 on, 4 off, or even 2 on & 5 off until the ALT/AST numbers drop back into normal range?
I don’t want to fry the liver, but I don’t want the tumor to start growing again.
Next CaT scan is scheduled for 10/01. Next blood test for 09/26.
Hello and thank you for a comment.
Yes taking fenbendazole at least 3 or 2 days a week is still much better then nothing. You may continue this until your liver enzymes comes down to normal range. Also be sure to check our “supplements” page. https://www.fenbendazole.org/fenbendazole-information/supplements/
There is a lot of good information about liver protecting compounds and supplements. We hope your liver gets better soon!
Hello,
What dosage of Fen would you recommend someone who is 225lbs with liver cancer? I have been giving 222mg 2gram packet 3 times a week with 4 days off for the last couple weeks to start. Is it ok to bump it up to 6 days a week? Is the 2gram packet enough (Panacur C)? . Just want to make sure we are doing enough to fight the cancer. We are taking other supplements , Curacumin 2x daily, Milk thistle 2x daily , vitamin E daily, and CBD drops nightly. Thanks in advance.
Hello Mike,
It sounds like you are doing everything right so far with the Fenbendazole dosage, and your supplement regimen seems well-rounded. If the liver enzymes are stable and the patient is feeling well, it is generally considered safe to increase the Fenbendazole dosage to 444 mg per day, 6 days a week. This could help maximize the potential benefits in fighting cancer. However, it is important to regularly monitor both health and liver enzyme levels to ensure the treatment remains well-tolerated and to catch any potential issues early.
Hello, my dad has metastasis on the liver and lungs. He is taking Fenbendazole, Milk twistle, Curcumin and the others from the protocol. However he has pain in the liver and back, also he has high temperature from one month for which, he is taking nurofen. So my question is – Is it apropriate to take Fenbendazole with Nurofen for the temperature and pain.
Hello Djei,
While there are no known significant interactions between Fenbendazole and Nurofen (ibuprofen), caution should still be exercised due to your dad’s liver metastasis. Both medications undergo hepatic metabolism, which may place additional strain on liver function. It is essential to monitor liver enzyme levels regularly to assess the liver’s ability to process these medications safely. If liver enzyme levels remain within normal or only mildly elevated ranges, it is generally considered safe to continue the protocol.
To ensure optimal absorption and minimize potential side effects, Fenbendazole should be taken with food or immediately after a meal. Additionally, it is recommended to follow a schedule of 6 days on and 1 day off when taking Fenbendazole. This allows the body a regular break, which can help reduce any potential strain on the liver, especially in cases of liver metastasis.
For accurate dosing, you can refer to the dose calculator available here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Can you tell me please if Joe Tippins cancer protocol including milk thistle would interfere with hormone therapy drug called Orgovyx (pill form) that I’m taking for prostate cancer? I also have stage 2 bladder cancer that is at this time still contained in bladder. Currently undergoing a 3 week BCG treatment for that.
Dear Greg,
There is limited research available on the interaction between fenbendazole and Orgovyx (relugolix) or BCG therapy. Nevertheless, caution is advised, as fenbendazole can influence liver enzyme activity, potentially affecting the metabolism of Orgovyx, a hormone therapy processed via the body’s metabolic pathways. Additionally, because BCG is an immunotherapy for bladder cancer, treatments like antiparasitic drugs, such as fenbendazole, may interfere with the immune response.
If you choose to incorporate fenbendazole into your treatment regimen, it is recommended to start with a low dose and gradually increase it. Monitoring liver and kidney enzyme levels, as well as overall health, is essential. It is not advisable to exceed 444 mg of fenbendazole per day. The suggested protocol is to take it 6 days a week, with a 1-day break.
I take that Orgovyx for prostate cancer along with Xtandi. I also have been taking 222mg FBZ for almost 5 years daily. Increased it to 444mg daily about 6 months ago. Also a slew of supplements, with milk thistle, and 24mg IVM daily. No problems, although PSA is increasing a little lately and I still have cancer in my spine…and they say other bones too. It was in my lymph nodes and bones in Feb 2020, now just in my bones…have not yet gotten it out of my bones…although I think it improved for a long time but still having trouble in my spine.
I have stage 4 rectal cancer. Diagnosed as stage 3 in April/May, confirmed spread to liver early July. Started 222mg fenben, milk thistle, turmeric/curcumin, and ivermectin on June 11. Upped fenben to 444mg in mid-July. Pretty much running 7 days per week.
Had labs done 06/28 & 08/28. Pain has been relatively low since starting the protocols, but have been feeling much better in the last few weeks. I have some questions on the lab results:
CEA went from 4.7 (high) on 06/28 to 7.1 (higher) on 08/28
AST went from 21 (in normal range) to 234 (way high)
ALT went from 18 (in normal range) to 409 (way high)
Platelets dropped from 664 to 599 (still high)
Most everything else was within normal ranges.
The tumor appears (to me) to be shrinking, but won’t be able to confirm until doing another CT scan. The first/last/only one so far was 07.01.
Should I be concerned about the effect of the fenben on the liver with the AST & ALT numbers being so high?
Any thoughts or suggestions?
Thank you for this resource.
Hello Clyde,
It is great to hear that you are feeling better and that the tumor seems to be shrinking. However, the significant rise in your AST and ALT levels is concerning, as these enzymes are crucial indicators of liver function. Elevated levels might suggest liver inflammation or damage, possibly related to the medications or supplements you are taking, including fenbendazole.
The sudden spike in AST and ALT levels indicates that your liver might be under stress, so it is essential to keep a close eye on these levels. You may want to consider adjusting your current protocol.
Given the elevated enzyme levels, it could be beneficial to reduce the fenbendazole dosage or incorporate breaks in your regimen to allow your liver time to recover. We suggest modifying your schedule to 4 days on and 3 days off, which might help give your liver more time to heal.
It is good that you are continuing with liver-supporting supplements like milk thistle. It might also be helpful to discuss additional liver support strategies with your healthcare provider.
Since your CEA levels have increased, it is crucial to follow up with further tests, like your upcoming CT scan, to better understand what is happening with the tumor and your overall health.
Hello, Would you recommend Joe Tipps protocol for someone just diagnosed with liver cancer? Not sure what stage yet or if spread. Would you recommend to work in Ivermectin also ? Any advice as far as a plan would be appreciated. Thanks
Hello Mike,
Thank you for your question. It is possible to use Fenbendazole in cases of liver tumors, but it is crucial to closely monitor liver enzyme levels during the treatment. We recommend including Milk Thistle in the protocol to support liver function.
As for Ivermectin, we cannot provide guidance on its use since we are a Fenbendazole informative page. However, you can determine the appropriate dosage and schedule for Fenbendazole by using our dosage calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
I was wondering if you could address other protocols recommending the amount you take as needing to be the same as a primate?
Much larger doses than your site recommends.
We are more like a primate than a dog so I was wondering if you could speak to this
Hello,
Certainly! The dosing protocols for animals, such as primates or dogs, are different from those for humans due to differences in metabolism, body composition, and how each species processes medications. While it might seem logical to compare dosages between primates and humans because of our genetic similarities, it is important to remember that the dosing recommendations for animals are specifically tailored to their physiology.
In humans, the dosage of fenbendazole needs to be carefully calculated based on factors such as body weight, overall health, and the specific condition being treated. This ensures that the medication is both safe and effective. Using much larger doses, as some animal protocols suggest, could lead to unnecessary risks or side effects without providing additional benefits.
To determine the appropriate dosage for humans, we recommend using the dosage calculator available on our site: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/. This tool is specifically designed to help you find the right dosage based on your individual circumstances, ensuring that you get the best possible results safely.
Thank you!
Hi, my mom started on this protocol for stage 4 metastasis breast cancer that has spread to the liver, lungs, and bones. Basically all over her body. She has now decided to take the hormone blocker the oncologist prescribed her at the same time. I am worried that if she mixes the two it could be bad for her. The hormone blocker they have her on is Kisqali and Letrozol. Please let me know what you think.
Dear Zoe,
When considering the use of fenbendazole alongside these medications, it is important to be aware of potential interactions, even though specific data on these combinations are limited. Fenbendazole is part of the benzimidazole drug class, and while there is not well-documented evidence of direct interactions with Kisqali or Letrozole, all three are metabolized by the liver. Combining them may increase liver strain, so monitoring liver function is crucial. Depending on your mother’s health, you might want to consider adding Milk Thistle to the protocol to support her liver health.
Hi, Does Fenben cross the blood brain barrier?
Hello Bonnie,
Yes, there is evidence suggesting that fenbendazole can cross the blood-brain barrier, though research is still somewhat limited. Its ability to penetrate the blood-brain barrier has sparked interest in its potential for treating certain cancers, particularly those in the brain. You might find this case report interesting: https://www.fenbendazole.org/diffuse-midline-glioma/.
It fixed glioblastoma for one woman that I heard about.
My mother was diagnosed with stage 4 pancreatic cancer. She’s being fed with Glucerna 1.5 via g-tube. Her latest CT scan 8/19/24 showed nodules on her lungs and bones. She doesn’t eat much because of the pain, which concerns me about being able to feed her fatty food to help absorb the panacur c granules. Would we be able to dissolve the granules in liquid to push into her g-tube? Any help with this would be greatly appreciated. My concern is trying to find the most effective way for the body to absorb the fenbendazole.
Dear Obed,
Yes, it is indeed possible to dissolve fenbendazole in water and administer it via the g-tube. This method should allow the medication to be effectively delivered to your mother. Additionally, you may want to consider using fenbendazole in liquid or powder form, as these options could simplify administration through the g-tube and ensure accurate dosing.
As for the absorption of fenbendazole, it is important to note that taking the medication with food can enhance its effectiveness. While any type of food is generally sufficient, the key is to avoid administering fenbendazole on an empty stomach. Food helps with the absorption process, ensuring that the body can utilize the medication more effectively. Given your mother’s situation, even small amounts of food should be adequate to aid in the absorption of the fenbendazole.
If you have any further concerns or need additional advice, feel free to reach out—we would be glad to help ensure her treatment is as effective and comfortable as possible.
I am currently taking Semaglutide to help me drop weight. Will this interfere with Fen?
Dear Cheryl,
Semaglutide and fenbendazole are distinct medications with different mechanisms of action. There are no well-known interactions between the two, as they operate differently within the body, making a direct drug interaction unlikely. However, since both are processed by the liver, it is important to monitor liver function if taking them together to ensure no adverse effects occur.
Hello!
My relative has metastasis in the liver and lungs, two years after chemo and operation of rectal cancer.
Before over 20 days, he started Fenbendazole and we have made a monitoring of the liver enzymes ASAT which is 47, ALAT is 37. Before Fenbendazole they were ASAT- 58 and ALAT – 29. ALAT is in the norm, but ASAT no.
However we’ve monitor also GGT which is a lot higher than before and the norm. The norm is 5-50, now the result is 249, before it was 194.
So I am not sure, should we monitor the GGT or just ALAT and ASAT.
Thank you!
Hello Dzheylya,
It is great that you are monitoring liver enzymes while your relative is on Fenbendazole. The changes in AST and ALT levels are definitely important, but the increase in GGT is something to keep an eye on as well. GGT is another enzyme that can indicate liver stress, so it is a good idea to keep monitoring it along with AST and ALT.
To support liver health, you might consider adding milk thistle to the regimen. It is known for its liver-protective properties and could help manage enzyme levels. Keep tracking these levels to get a full picture of how things are progressing.
I utilized the dosage calculator provided with this page which suggests the Fenbendazole 222 mg. I am curious when looking at purchasing for example the Panacur C or Safe Guard brand do I need to adjust the number of grams/packets based on my weight. For example the 1 gram packet treats up to a 10lb dog and a 2 gram packet treats up to a 20lb dog.
Hello Jamie,
When using Fenbendazole products like Panacur C or Safe-Guard, it is important to match the dosage to your weight rather than the weight of a dog, as the dosage calculators are typically based on human weight.
For instance, if the dosage calculator recommends 222 mg of Fenbendazole based on your weight:
1-gram packet of Panacur C typically contains 222 mg of Fenbendazole, which is intended for a 10-pound dog.
2-gram packet contains 444 mg, suitable for a 20-pound dog.
In your case, if the calculator suggests 222 mg, you would use one 1-gram packet. There’s no need to adjust the number of grams or packets based on the weight of a dog; you should follow the dosage recommendation calculated for your specific weight.
Make sure to read the product label to confirm the amount of Fenbendazole per packet, as formulations can vary.
Hello, my father has recently been diagnosed with stage IV stomach cancer and has just begun palliative chemo treatment which includes a chemo infusion every 3 weeks and tablets of capecitabine twice a day, every day, in-between infusions. He heard of fenbendazole and tried it for 4 days before he started chemo. He wants to carry on taking it maybe 4 days on, 3 days off but would need to take it alongside the capecitabine, as there isn’t any break from these tablets. (He will avoid for a few days either side of the infusion). He plans to take it as far away from the capecitabine tablets as possible, probably 4 hours apart. He will be monitoring liver enzymes every 3 weeks. Do you know of any interactions that make the combination a bad idea or is there anything else you can suggest to make the combination as safe as possible? Thanks, appreciate what you are doing here very much.
Dear Kathy,
Based on what you have described, it seems that your father can continue taking fenbendazole according to the schedule he is considering. It may be beneficial to add milk thistle and curcumin to his regimen, as these supplements are known for their supportive effects on liver health and inflammation.
However, it is important to note that there is limited information available regarding the interaction between fenbendazole and capecitabine. Both medications are metabolized in the liver, which could potentially increase the risk of liver-related issues. Therefore, it is crucial to closely monitor his general well-being and continue regular liver enzyme checks every three weeks, as you have planned.
By maintaining this level of caution and regularly assessing his liver function, you can help manage the potential risks associated with combining these treatments.
Hi, does anyone know if you are on abrax chemo and immunotherapy can you take this?
Hello, Brianna, thank you for a question.
Yes fenbendazole may be used together with other therapies. We recommend following our protocol and calculate your dose at our dosage calculator. Be sure to make pauses 2 days before your chemo or immunotherapie rounds. Resume fenbendazole treatment 2 days after your round. This is due to fenbendazole stopping proliferation of cancer cells, but chemo targeting fast proliferating cells (like hair, nails, skin, etc.) So if you want the best results and synergy, we suggest you make pauses.
Hello!
My relative has metastasis in the liver and lungs, two years after chemo and operation of rectal cancer.
Before five days, he started with Fenbendazole, Milk twistle, linseed oil, curcumin and Tutka.
Do you think that the supplements are appropriate with this treatment with Fenbedazole?
Also we think to add serapeptaza, berberine, multivitamins, melatonin and oxygenated water, but we are not sure these supplements can be combined with Fenbendazole and this type of cancer. What do you think?
Dear Dzheylya,
The supplements your relative is taking along with Fenbendazole are generally safe and compatible. Milk Thistle supports liver health, which is essential given the stress of cancer and Fenbendazole. Flaxseed oil and Curcumin have anti-inflammatory properties, while TUDCA protects the liver.
The additional supplements—Serrapeptase, Berberine, Multivitamins, and Melatonin—can also be combined with Fenbendazole. Regarding oxygenated water (hydrogen peroxide therapy), while we are still learning about its potential benefits, it is important to approach its use thoughtfully and consult with a healthcare provider.
Regular monitoring of liver enzymes and general health is very important, as some supplements can affect liver function.
Sorry if you’ve already addressed. I’ve read that Fenben is difficult to absorb and water doesn’t do the job. Article recommended using EVOO-extra virgin olive oil to break it down to a suspension type level. Also, read that butter could work. Tried to find more info on dissolution of Fen but no one mentioned whether HCL from your stomach worked. Seems odd they would miss that.
Could you please comment on this?
Using for prostate cancer probably my last resort before surgery. Been 5+ years since diagnosis. Used IVC, mistletoe, naltraxone, UBI and Hellaborus Niger plus numerous supplements. None actually shrunk tumors but do “believe” they and diet helped me get healthier during this time.
Thanks
Dear Bob,
Fenbendazole can be challenging to absorb. Therefore, it is recommended to take it with or after a fatty meal. Some sources suggest using coconut oil, hemp oil, olive oil, or butter to dissolve it, making it easier for your body to absorb. Fatty foods like avocado, nuts, or fatty fish can also be suitable. Stomach HCL might not be sufficient on its own, so a fat source like EVOO or butter is recommended because fenbendazole dissolves better in fats, enhancing its bioavailability.
Regarding your prostate cancer treatment, it sounds like you have explored various options. Adding fenbendazole with a fat source might be worthwhile, as it has shown benefits for many prostate cancer patients. It is important to choose the right schedule and dosage. We suggest using this dosage calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
Hello,
I am inquiring about using Fenbendazole for a brain tumor. We are currently taking 400mg twice a day of Albendazole (total of 800mg/day) We just started this July 25th, but we would rather use the Fenbendazole given the success rate, studies, and personal success stories. We were thinking to start at 222mg twice a day (total of 444mg/day) and increase to double that amount if tolerated. (patient weighs 98lbs) Currently we are using high dose Boswellia, Liposomal Curcumin, Vitamin D3 K2 and THC tincture along with a few other supplements like Selenium, Oxoalaceatate, etc… Also we are on Dexamethasone of 4mg for four times per day. (total of 16mg/day) Any advice on the dosage for this situation. Thank you in advance!
Hello Jerry,
For a patient weighing 98 lbs, the recommended dose of fenbendazole would be 222 mg per day, taken in one dose. If the patient tolerates it well, you can consider doubling the dose, but make sure to take it with food. It is important to monitor liver enzymes and the patient’s overall condition closely.
Fenbendazole is actually more widely used than albendazole and might be a better option if available. All the supplements you’re using, such as boswellia, liposomal curcumin, vitamin D3 K2, and THC tincture, are beneficial, so continue with those.
However, be sure to administer fenbendazole separately from dexamethasone, spacing them out as much as possible to avoid interactions.
My husband has CLL – chronic lymphatic leukemia – for 20+ years – lymphnodes are increasing in size – doc wants oral chemo – husband doesn’t want to do chemo. Has feben shown to be effective for CLL? Thank you!
Hello and thank you for a question!
Fenbendazole can be effective for CLL. However chemo also may be helpful in conjunction with fenbendazole. Only one important point. If you decide to do chemo, make sure your husband pauses fenbendazole protocol for 2 days prior, during and after chemo round. This is because chemotherapy targets fast proliferating cells like skin, hair, nails and of course CANCER. Fenbendazole may slow down cancer proliferation and then chemo may not target cancer as good. So use both chemo and fenebdazole, but be sure these two do not intervene with each other. Best of luck to you!
how safe is fenbendazole for my husband who also has early COPD and Emphysema? Also, fairly frail at 75 and weighs 100 lbs. Recently diagnosed prostate cancer; a very fast growing and spreading one. Not doing chemo or radiation so looking for other safer natural options.
Dear Angel,
Fenbendazole is generally safe and well-tolerated, with rare side effects, making it a promising option for your husband. Given his frail condition and weight of 100 lbs, starting with a dose of 111mg per day for six days a week is advisable. If he feels well, you can consider increasing the dose to 222mg per day. It is important to monitor his liver enzymes, general blood tests, and overall well-being to ensure the treatment is working effectively and safely.
Dear admin,
Thank you for existing, I am sure that you and your kind advices and replies are just what most of us need in our challengning times. My mother has 4-stage pancreatic cancer. Tumor is pushing her nerves and tissue so she has terrible pain in abdomen and in her back. She is on multiple heavy medicaments/opiodes against the pain. 2 days ago I started giving her 250mg (half a 500mg pil) fenbendazole per day together with 600mg curcuma and 2 CBD-drops. Is that dosage sufficient? Should I give it to her 6 days per Week and 7-th day off? Should I combine even with vitamines A, B, C D, E and K? Any idea how long time can it take until we can expect some shrinkage of tumors-reducing her pain? Thank you in advance and God bless you!
Hello Ed,
Thank you for reaching out. Since we do not have your mother’s body weight, we cannot provide an exact dosage recommendation. It would be best to calculate the dosage using a fenbendazole dosage calculator, which can be found here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Your proposed usage schedule of 6 days on and 1 day off is appropriate. Additionally, it is beneficial to include milk thistle in the protocol to support liver function, as fenbendazole can affect liver enzymes.
Curcumin should ideally be taken twice daily at 600mg each time to maximize its therapeutic effects. Regarding CBD, without knowing the concentration of the drops, a general recommendation would be around 25mg at night for pain management.
Patients typically begin to notice initial results, such as tumor shrinkage and pain reduction, within 2-4 months. However, this timeframe varies widely depending on individual factors such as overall health, cancer stage, and response to treatment.
Including vitamins A, B, C, D, E, and K is generally beneficial for overall health. It is important to note that vitamin E acts as a blood thinner, so careful monitoring is advisable.
Lastly, please ensure to closely monitor your mother’s condition and regularly check her liver enzymes, especially given the medications and supplements she is taking.
Wishing you and your mother strength and progress on this journey.
Is it safe to use fenben to treat esophageal cancer that has metastasized to the liver? Any specific recommendations or things we should watch out for?
Hello,
Fenbendazole can be used safely when liver enzymes are within normal or mildly elevated ranges. It is generally well-tolerated and has demonstrated promising potential in cancer treatment. Incorporating supportive measures like milk thistle, known for its hepatoprotective properties, can be beneficial. It is crucial to regularly monitor overall health and liver function through liver enzyme tests, especially in managing liver metastases. This monitoring aids in evaluating liver function and determining any necessary adjustments to treatment plans.
Hello,
Diagnosed with GNET, a rare sarcoma that housed itself in my colon and has a high recurrence rate. It metastasised to my liver and I will be have Y90 treatment this week and at end of July. Just ordered Fenbendazole today. Thoughts on Fenbendazole and sarcoma?? Thank you, Kathy
Hello Kathy,
Fenbendazole has shown potential in cancer research due to its ability to disrupt cancer cell growth, similar to its action against parasites. While it is not yet a standard treatment for sarcomas or other cancers, some evidence and early studies suggest it might be beneficial.
Is there any known reactions with autoimmune diseases? Specifically Dermatomyositis.
Dear Jim,
Autoimmune diseases involve the immune system attacking the body’s own tissues, and medications used to treat them are generally immunosuppressive or immune-modulating drugs. Fenbendazole does not fall into these categories.
There is no documented evidence or established medical use of fenbendazole in treating autoimmune diseases like Dermatomyositis.
I was just wondering is it safe to use Fenbendazole and antibiotics at the same time, I was just prescribed a 7 day antibiotics regiment and I’m not sure if I should pause my Fenbendazole for that duration, anyway I guess the safe option is to stop Fenben for this period and than continue, but I would like to know in general, is there any information about some possible interactions between Fenben and antibiotics?
Hello Dejan,
Antibiotics and fenbendazole operate through different mechanisms.
Most antibiotics are generally known not to significantly interact with fenbendazole. However, some antibiotics, such as metronidazole, have been reported to potentially interact with fenbendazole, increasing the risk of neurotoxicity. Therefore, combining these medications should be approached cautiously, and any signs of neurological issues should be monitored closely.
Tetracyclines, like doxycycline, represent another group of antibiotics that may form insoluble complexes with certain medications, including fenbendazole and mebendazole. To avoid interference with absorption, it is typically recommended to administer mebendazole and fenbendazole separately, although specific interactions between these drugs are not extensively documented.
Liver enzymes, which often interact with antibiotics, generally do not significantly metabolize fenbendazole. Therefore, notable interactions with other antibiotics are unlikely. It is advised to discontinue fenbendazole use two days before starting antibiotics and for two days afterward if concerned about potential interactions.
My wife has had metastatic breast cancer for over 7 years and about a year ago her oral chemo pill (IBRANCE) stopped working. She did some chemo infusions and radiation and then her cancer went from HER+ to -. Another oral pill for her type of cancer was tried, but the side effects were too much so for the last few months she has had no treatments other than infusions for her bones. Could it be helpful to embark on a regiment of Fenbendazole for a woman 76 years old and 120 pounds?
Dear Greg,
When breast cancer has spread to other areas of the body, it is frequently treated with fenbendazole. It is thought to function by interfering with cancer cells’ ability to synthesize microtubules, which prevents cell proliferation and encourages cell death.
Fenbendazole can be a helpful addition to your wife’s treatment plan. It is crucial to remember that fenbendazole usually needs to be used for a long time, and it could take one to four months to start showing results. Results can vary depending on a number of factors, including the patient’s immune system, the degree of the cancer, and how each patient responds to treatment.
We advise starting with a lower dose and gradually increasing it while carefully monitoring your wife’s condition because of her medical history. Her response to the drug will be evaluated, as well as her tolerance to it, by routine blood tests and general health checks.
It is important that Fenbendazole not be given in conjunction with radiation or chemotherapy treatments. Stop fenbendazole at least two days before and after these procedures to reduce the possibility of interactions.
You might find these case reports useful for more reading: https://www.fenbendazole.org/triple-negative-breast-cancer/
Here is the case report for metastatic breast cancer: https://www.fenbendazole.org/case-report-metastatic-breast-cancer-83-female-2/
These sources offer extra information on the potential benefits of Fenbendazole in similar situations.
Is fenben safe in pregnancy for pin worms?
Hello,
We appreciate your interest in learning more about fenbendazole treatment for pinworms in pregnancy. Generally, because there is limited safety information for pregnant women, it is not recommended. During pregnancy, certain drugs, like fenbendazole, may provide risks to the growing fetus as well as the mother.
Hi my brother was diagnosed with a glioblastoma grade 4 cancerous tumour last week. It is inoperable and they have said he isn’t well enough for chemo or radiotherapy. He has lost mobility since his biopsy back in april and is struggling with dizziness and feeling sick on and off. He is on an anti sickness syringe driver 24/7 and is now in a hospice for care as he wasn’t well enough to come home from hospital. He has fought covid pneumonia in the past 2 weeks, so his chest is weak and he swallowed some food that went into his lung. He is coughing when swallowing so is on a soft diet. He tried some fenbendazole (panacur) 222mg on sat night and Sunday morning. He was then sick all Sunday afternoon but we think this a coincidence as his xray showed food had gone into his lung causing infection. I am desperate to try him on fenbendazole again but I am worried about nausea. They have given him a few months. His vision is affected and he mentioned his hearing is affected today. Any advice would be greatly appreciated. Thanks
Dear Laura,
We extend our heartfelt condolences to you and your family during this challenging time following your brother’s diagnosis.
Regarding the use of fenbendazole (Panacur) for glioblastoma, recent studies and reports have suggested potential benefits in treating brain cancer in humans. While its effectiveness specifically for glioblastoma has not been firmly established in rigorous clinical trials, ongoing research is exploring its mechanisms and potential applications across various cancer types, including brain tumors.
Given your brother’s serious medical condition, we recommend starting with a lower dose of fenbendazole and gradually increasing it to help manage potential side effects, such as nausea, which is particularly important given his current health challenges.
If swallowing is difficult, administering fenbendazole in powder or liquid form mixed with your brother’s favorite foods may facilitate easier consumption. Alternatively, if his healthcare team opts for a feeding tube, this can simplify the administration of fenbendazole directly into the stomach.
We would also like to highlight that fenbendazole is known for its long-acting properties. As a result, the time frame for observing noticeable results can vary significantly, typically ranging from 1 to 4 months. This duration is dependent on several factors, including the patient’s overall condition, the progression of the disease, and the individual’s response to the treatment. Patience and consistent monitoring are essential during this period to evaluate the effectiveness and adjust the treatment as necessary.
In addition to fenbendazole, complementary therapies like CBD, turmeric, and milk thistle have been studied for their potential supportive roles in cancer treatment and maintaining liver health.
Please do not hesitate to reach out if you have any further questions or need additional assistance. We are here to support you and your family during this difficult time.
Ok so I was diagnosed on Dec 4 with prostate cancer from 1 biopsy sample out of 19 PSA 12.5 from 3 months prior to the biopsy, Gleason 3+4=7. I have consulted on options of surgery and radiation. April 24 I started 3 days on 4 off of 222 MCG of Safeguard Fenbendazole. On May 14 I decided to switch to 6 days on 1 off. Last Thursday 5/30 i had a blood draw to check liver, kidney and PSA and Free PSA. Liver and kidney came back good. I just received the PSA/Free PSA and was surprised the total PSA is 17.3. I did not get a PSA prior to starting the treatment, so I guess I may need to wait some to retest the PSA for true positive results. Looking for some guidance. I have spoken with a person that had a 33 PSA and more positive samples that reduced their PSA to .2 but took about 3 months. Thanks for any info.
Dear David,
An increase in your PSA from 12.5 to 17.3 could mean several things. One possibility is that the treatment duration is still too short to achieve optimal results. Additionally, the schedule and dosage are crucial for treatment effectiveness. A 6-day-a-week schedule is recommended, and if your weight is under 90kg, a dose of 222mg of Fenbendazole is appropriate.
Response to treatment varies between individuals, and some may take longer to see effects. Other factors like infections, inflammation, or medical conditions can also elevate PSA levels. We suggest continuing the treatment on a 6-day-on, 1-day-off schedule and considering the supplements we offer, which can support your health and treatment efficacy. For a list of supplements, visit: https://www.fenbendazole.org/fenbendazole-information/supplements/
Repeat the PSA test after a few months to assess if the treatment is effective. Monitor your overall well-being and have regular general blood tests. Changes in lifestyle and diet are also crucial. Focus on a balanced diet, regular gentle exercise, stress management, and maintaining a healthy weight to support healing and improve overall well-being.
Thank you. I weigh 148 lbs. I had a bone scan and pelvic scan a few months back and all indications the cancer is contained to the one spot in the prostate. Hoping to avoid surgery or radiation and the side effects those pose.
We genuinely hope for your full recovery and success in overcoming cancer. We are confident that incorporating Fenbendazole into your treatment regimen will be beneficial.
Based on your weight, a dosage of 222mg of Fenbendazole is appropriate and has been correctly selected. Should you have any additional questions or require further assistance, please do not hesitate to reach out to us. We are committed to supporting you throughout your treatment journey and will endeavor to provide any help you need.
Thanks again for this valuable resource of information on Fenbendazole for possible cancer treatments. I am taking Fenbendazole now, I have an upcoming dental implant procedure, which I assume antibiotics might be prescribed to limit risk of infection ……. should I stop Fenbendazole? or continue taking daily as usual? are certain antibiotics to be avoided if taking Fenbendazole? …… Thanks
Dear Jeff,
Fenbendazole is generally regarded as safe and well-tolerated, with interactions with antibiotics being unlikely. There are no widely documented specific antibiotics that must be strictly avoided while using Fenbendazole. However, potential interactions can vary based on individual medical conditions and other medications being taken. Therefore, we advise you to monitor for any unusual side effects or symptoms when using Fenbendazole with antibiotics. If you notice any changes, consider pausing Fenbendazole until you have completed the antibiotic course.
My diagnosis is DCIS and I am told I need a mastectomy by end of July 2024. I started 222mg powder Fenben May 6 2024. As of May 22, 2024 switched to Liquid for goats at 2.5 ml per day. More economical. Is this ok? I am also using 630 mg Curcumin and 1000 mg Milk Thistle. Have you heard of any DCIS Breast Cancer cases regressing from this protocol? I am having PET scan done before mastectomy to see if breast lights up. Can you tell me if this scan will show ductal carcinoma insitu? If nothing lights up I am hoping it is due to the fenben protocol. Thanks so much for having this med out there for animals and now people. Please advise.
Dear Gaye,
To answer your first question, yes, you have chosen the right solution, and using 2.5 ml of liquid for goats is appropriate. This dosage is equivalent to 250 mg of Fenbendazole.
Adding Curcumin and Milk Thistle to your regimen is a very good decision. These supplements will help support your body and liver health.
Regarding the effectiveness of Fenbendazole in treating DCIS, preclinical studies have demonstrated its anticancer properties, such as inhibiting cell division, disrupting glucose metabolism, and potentially modulating the immune system. However, these studies primarily focus on invasive and metastatic cancers rather than non-invasive conditions like DCIS. Therefore, it is challenging to predict how Fenbendazole will work specifically for DCIS, as its effects on this condition have not been extensively studied. The effectiveness of the treatment also depends on various factors, including your overall well-being, immunity, and how your body responds to the treatment.
In response to your question about PET scans, while PET is a powerful imaging tool in oncology for detecting cancer and assessing its spread, it has limitations in detecting ductal carcinoma in situ (DCIS). Due to the lower metabolic activity and smaller size of DCIS, a PET scan is usually not the best choice for detection. Mammography remains the gold standard for screening and diagnosing DCIS, often supplemented by MRI or ultrasound as needed.
We sincerely hope that this protocol will be effective and your cancer will be eliminated. If you have any further questions, we will be happy to assist you.
Is it safe for me to double the 2.5ml once a day of liquid to twice a day? Just want all I can take safely before PET scan. I understand what you said about an MRI being a better tool to see the DCIS contained cancer, however the insurance will not cover another one this close to the last as they are going on the assumption that nothing will have gotten better before surgery date. I did not tell them I was self treating. That being said my only option was the PET. Can I assume that if the PET does not light up any cancer in breast the DCIS is still contained in the duct? If I continue this protocol and the cell division is disrupted by the Fenben I see no need to have mastectomy. Would you agree with my logic? Can this protocol be continued indefinitely without any side effects?
Thanks for previous answers.
Dear Gaye,
It is important to be cautious when adjusting the dose of liquid fenbendazole. If you weigh 90 kg or less, your daily dose of fenbendazole should be 222 mg. Doubling the dose from 2.5 ml to twice a day significantly increases the amount and may cause side effects or toxicity. The current daily dose of 2.5 ml is generally safe and should be taken once a day with or after a meal.
If the PET scan shows no cancer activity, this may indicate there are no highly active cancer cells, but it does not mean DCIS is completely arrested or regressed, as DCIS might not appear on the PET scan.
While the fenbendazole protocol is promising, medical decisions should be based on comprehensive clinical evidence and imaging findings. If no cancer is detected on the PET scan, further consultation with your oncologist is necessary. They may suggest additional imaging or biopsies for a clearer picture.
Regarding long-term use, many patients use fenbendazole for years without side effects if used correctly. However, regular monitoring through blood tests and well-being checks is recommended to ensure there are no adverse effects.
Your desire to avoid a mastectomy is understandable, but decisions should be made based on thorough medical evaluations and discussions with your healthcare team. We cannot assist in making this decision.
It’s my mother. He is a terminally ill stage 4 pancreatic cancer patient who has less than a month to live. He has metastasized to multiple sites including the liver, and is also suffering from peritoneal dissemination.
Can I give fenbedanzole to a terminally ill pancreatic cancer patient who is vomiting and unable to eat or drink?
I am not giving up at all!
I would be grateful if you could give me some advice.
Hello, we are truly sorry to hear about your mother’s condition.
Unfortunately, when a patient is critically ill and unable to consume food or fluids, administering oral medications like Fenbendazole can be quite challenging. Given her current state, it’s also uncertain whether Fenbendazole would provide any benefit, as it is not a medication that yields immediate effects. Typically, Fenbendazole should be used for 1 to 4 months to evaluate whether it is effective for an individual’s specific situation.
However, if your mother is able to take Fenbendazole orally without adverse effects, it is crucial to monitor her response closely. Regular blood tests are important to ensure that the treatment is having a positive impact on her health.
Hi, I currently take a statin (Atorvastatin) and I was wondering if it is okay to take the preventative protocol as listed? I understand that statins work primarily in the liver so I thought it would be best to check.
Thanks,
Toby
Dear Toby,
There is no specific evidence to suggest a dangerous interaction between atorvastatin and fenbendazole. However, this combination should be approached with caution. Since all drugs can have side effects and interactions between atorvastatin and fenbendazole are not well-studied, we recommend that you constantly monitor your general well-being and have regular blood tests.
Thank you!
Can Fenbendazole and Methylene Blue be taken together for cancer treatment? Any other concerns by combining? Thanks in advance
Dear Jeff,
Fenbendazole is generally regarded as safe and well-tolerated. It often shows compatibility with a wide range of medications, supplements, and standard cancer treatments such as chemotherapy, immunotherapy, and radiotherapy.
However, there is no established scientific evidence regarding its use in combination with Methylene Blue, and their potential interactions are also unknown.
Therefore, we recommend proceeding with caution if you decide to combine these two drugs. It is advisable to start with a lower dose than typically recommended. If the patient tolerates the treatment well, you may gradually increase the dosage to the levels outlined in the protocol.
Additionally, it is important to closely monitor the patient’s overall health and conduct regular blood tests to ensure the treatment progresses safely and effectively.
Can fenbendazole be used during targeted therapies, such as enhertu; herceptin, or car-t?
Dear Susannah,
Thank you for your question.
Fenbendazole is generally considered safe and well-tolerated. However, it can interact with other medications, and not all potential interactions are known. Unfortunately, we couldn’t find specific data regarding interactions between Trastuzumab or CAR-T cell therapy and Fenbendazole.
Both Trastuzumab and CAR-T cell therapy are not classified as chemotherapy, which suggests that they should not cause any adverse interactions with Fenbendazole. Nonetheless, we recommend that you have monthly blood tests and closely monitor your overall health.
Hello, I am diagnosed with the Uterus cancer, I am 64 of age.
Is there a protocol on your site for FENBENDAZOLE+IVERMECTIN?
I checked but I didn’t find it.
Thanks.
Hello Marina, We are a Fenbendazole information page. We are sorry, but you will not find information about the interaction of Ivermectin and Febendazole on our page.
8 years ago, I was diagnosed with prostate cancer. Gleason 6. I’ve had 4 biopsies since, the last one being two years ago. Still the same; 3 out of 15 showing 3+3 and my last psa was 1.9, before that it was 1.3. I was taking 222 mg 3 days per week, but recently switched to 444mg 3 days per week. What would be the proper protocol?
Hello John,
When determining the correct dosage and frequency of Fenbendazole for your body weight, please use our provided dose calculator:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Also, do not forget to take supplements from the protocol, such as milk thistle, Curcumin, Vit D and others.
Should you wish to increase either the dose or frequency, be careful not to surpass the maximum daily limit of 444mg. Moreover, if you are adjusting how often you take the medication or decreasing the break periods between doses, it is important to conduct regular blood tests, check your liver enzymes, and monitor your general health.
Hello! I have stage 4 gallbladder cancer and currently take 4.5ml – 444mg of Panacur 10 liquid. I was considering switching to FenBen Lab, but I’ve read concerns about its purity not being as high as advertised. Is the liquid form I’m using okay, and should I be concerned about switching? Thanks in advance for your advice.
Hello, Michael. Thank you for your question!
As a product of Merck that is regulated by the FDA and EMA (European Medicines Agency), Panacur is undoubtedly safe product. As an independent organization, Fenben Lab is not subject to regulation by the aforementioned institutions. However, they are not subject to their regulation, because they market it as a chemical substance – not a veterinary use product. Both appear to be reputable organizations with years of experience and positive reviews, as far as we are aware.
Concerns regarding purity originated from a rival brand that conducted illegitimate independent testing; thus, this may be considered attack marketing, a practice that is occasionally regarded as unethical in the business world.
Should I stop taking Fenbendazole before having a MRI?
Hello and thank you for a question, Graeme.
You should stop at least 24h before MRI.
My 47 y/o husband is currently inpatient at a hospital. He is not eating and drinking a lot. He is hooked up to fluids via iv. Is this enough hydration for me to be giving him 222mg fenben? He has stage IV melanoma. He is currently being treated with chemo pills 5 days every 28 days. I waited 2 days to start the fenben after the last chemo dose.
Hello, Star. Thank you for a question.
Yes, fluids administered via IV should be enough. It is really great, that you decided to make a short pause after Chemo. 222mg is a relatively safe dose and should not cause any adverse effects.
Hi My dog weighs 30 pounds. The calculator says he should get 680mg per dose, is that correct?
Thank you,
Tony
Hello, Tony, thank you for a question.
That is not correct. According to your dogs weight (30 pounds = 13 kilograms), he/she should take 222mg once a day for four days in a row. Then, for the next three days, do not give your pet fenbendazole. Repeat this cycle every week. Also consider supplements for your dogs liver health and check liver enzymes.
I have a few additional questions to add from my previous post. The video from Dr. Rogers at this site recommends 444mg of the Fenben if you are fighting cancer and 222mg for preventative whereas the protocol showing only 222mg based on my weight and with cancer. Also, he stated the Fenben and Artemisinn ok to take in addition to chemo but did not mention anything about stopping the Fenben protocol right before and after each session. Thank you
Hello, Kimberly.
444 mg is an acceptable dose in the majority of situations. Nevertheless, the video missed to provide any information regarding the patient’s weight. Should you observe no adverse effects while taking 222 mg, you are free to increase the dosage if you so choose. However, be sure to monitor your liver enzymes and consider the possibility of liver toxicity. While a dose of 444 mg is generally well tolerated, we advise you to at least begin with a dose that is correlated to your weight, which in your case is 222 mg.
In response to your second question, you may pause during your chemotherapy round in order to maximize its benefits. Fenben does not cause harm when taken in conjunction with conventional treatment; however, it does diminish the efficacy of conventional treatment slightly.
I will be seeing my Oncologist on the 23rd of this month to discuss chemo treatment for the first time. I believe I will be starting chemo in about a week after my appointment. I do not know how many days a week I will be getting treatment but I saw one of your replies not to take the Fenbendazole few days prior and a day or two after chemo. Sounds like I should wait to speak with Oncologist first to see how many times a week I will be getting chemo if that is the case but I was hoping to start the protocol asap. Would you recommend to wait or just to go ahead and start? Thank You
Hello, Kimberly, thank you for a question.
We believe that the most effective course of action is to wait for a doctor’s appointment before developing a protocol for fenbendazole treatment, once you are certain of your chemotherapy regimen. The duration of the “rest phase” of a treatment cycle, which is the interval between chemotherapy cycles, is subject to variation contingent upon the particular chemotherapy regimen that is prescribed. This period can typically span from a few days to several weeks. It generally operates as follows:
Weekly Cycles: Chemotherapy may be administered to patients on a weekly basis, with the remaining week designated for recuperation prior to the subsequent dose.
Three-week cycles involve the administration of chemotherapy to a patient on the initial and possibly eighth day, after which the patient undergoes a period of recuperation until the subsequent cycle commences approximately two weeks later. This enables the body to recuperate and generate fresh, healthy cells.
Four-week cycles involve the administration of chemotherapy for a consecutive few days during the initial few days, followed by a recovery period of approximately three to four weeks during which no chemotherapy is administered.
Hello, my wife has stage 4 cancer, a course of chemotherapy is prescribed every 3 weeks.
according to the calculator it is 222mg.
1. Can she use fenbendazole during chemotherapy?
2. When is the best time to use it?
Hello and thank you for a great question!
Fenbendazole should be administered between chemotherapy cycles. Before chemotherapy, your wife may discontinue a protocol for at least two days, and she may resume use two days after treatment. This is due to the fact that chemotherapy primarily targets cells that proliferate rapidly, such as cancer, skin, hair, and nails. On the other hand, because fenbendazole inhibits the multiplication of cancer cells, chemotherapy may be a little less successful against them; however, optimal outcomes are desired from both therapies.
Best regards to you and your Spouse!
Sorry if this repeats a question. For “bio-available Curcumin”. I have some which is 1) mixed with black pepper and 2) says “With BioPerines”
??
Thanks
Hello Doug,
Thank you for your question. Both mentioned options are suitable. Because the absorption of curcumin is increased by piperine in any form.
Thank you for all your time and effort helping everyone. I’ve got 444mg capsules. To accurately cut the dose in half could I open the cap and mix it in 2 oz of a beverage then split it into 1 oz shots, taking 1 per day? And if so, what would be the best type of beverage?
Hello, Mark! Thank you for a question
Yes, you may divide the dose this way. You may add it to yogurt, juice, smoothies, or even water. Please bear in mind that fenbendazole does not dissolve in water. So, you may add a few drops of a fatty substance, such as olive oil.
Great delivery. Sound arguments. Keep up the good spirit.
How does this work for lymphoma in dogs
Dear Deedee,
Fenbendazole has proven effective in treating lymphoma in dogs, with numerous success stories reported. To determine the appropriate dosage and frequency for administering Fenbendazole, we recommend using our dosage calculator available at:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
my husband is a 1.5 year survivor of GBM frontal methalated tumor, post chemo/rad with surg. of 98% reduction.
It is coming back agressivley.
It is ok to take fenbendazole (7 days on) and Artemisnin together?
with the milk thisle, curcumin, cbd oil, bedadine, quercetin and frankincense as well?
Hello, Dolly. Thank you for a question!
We suggest making pauses. Please visit our Dosage Guide section to calculate dosage you may need. Pauses are important for your liver to restore. Fenbendazole half life may be up to 20+ hours in a human body, so you may need pauses to make time for your liver to deal with the load. If you use fenbendazole all week straight, fenbendazole may accumulate and cause liver stress.
I ordered Fenbendazole 3 gm Pill, Panacur Brand 1st Quality. I received Boli or Bolus (used for large animals) which I wasn’t expecting. Additional ingredients are Excipients-q.s. (?) and Colour-Tartrazine. These large pills are easy to break down and are tasteless. Is this okay to use for men and women at the appropriate dosage? Thank you for answering so many questions!
Hello, Cheryl and thank you for asking.
“Excipients-q.s” stands for “quantum satis,” a Latin term meaning “as much as is needed.” In pharmaceutical formulations, it indicates that the amount of excipients (inactive ingredients) used should be adjusted to achieve the desired volume or consistency of the final product. Essentially, it implies that the quantity of excipients should be sufficient to fulfill the intended purpose of the formulation, such as providing stability, improving solubility, or aiding in the manufacturing process.
“Colour-Tartrazine” refers to the food additive Tartrazine, also known as E102 or FD&C Yellow No. 5. It is a synthetic lemon yellow dye used in various food and beverage products to impart a yellow or greenish-yellow color. Tartrazine is commonly found in items such as candies, soft drinks, snacks, cereals, and desserts. However, it’s worth noting that some individuals may be sensitive to Tartrazine, and it has been associated with allergic reactions and intolerance in some people. Therefore, products containing Tartrazine are often labeled to alert consumers who may wish to avoid it.
I don’t have cancer, I just started today for cancer prevention, do I take 1 222mg fenben 3 on 4 off for 10 weeks also add 600mg curcumin and vitamin E. Do I need to take milk thistle daily or no.
Hello, William.
Milk thistle is recommended. Milk thistle, scientifically known as Silybum marianum, contains an active compound called silymarin, responsible for its liver-protective effects. Silymarin has antioxidant, anti-inflammatory, and hepatoprotective properties.
I had been taking a parp inhibitor for 6 months, but it was not working. My numbers had gone back up to CA148, so I decided to start taking the fenbendazole. I have been on it for 8 weeks. At 4 weeks my numbers were at 108, then at 8 weeks they were at 44. I have been following the protocol of 3 days on and 4 days off. I understand that I am to take up to 10 weeks. My labwork will be at 12 weeks. So I then woud be totally off for 10 weeks. I’m wanting to make sure my markers are below 35. Can I stay on week 11 and week 12 to make sure they come down before I take the 10 week break? And once my numbers are down how often in the year do I repeat the 10 weeks protocol?
Hello, Eva, thank you for a question!
Congratulations on your positive results; we sincerely hope tests will be the best possible. Furthermore, it is recommended that you continue to the protocol for an additional few weeks only if your liver exhibits favorable tolerance to fenbendazole, you do not experience any adverse effects, and your liver enzyme blood tests remain within the normal range. If all is well, then the duration of the protocol may be extended. Once your numbers are down, you can repeat the protocol every 4-6 months (2-3 times in a year)
Hi, My Mum has just been diagnosed with breast cancer, would fenbendazole be ok to use when she is on high blood pressure tablets and cholesterol tablets and she also as osteoporosis and has injection for the osteoporosis. Thank you, Naree
Can i take Mebendazole while I’m on Pabi-Dexamethason (Glucocorticoid)?
I want to start with mebendazole but I’m still taking these pills that I got from my doctor
Hello, Fil and thank you a question.
While fenbendazole is generally considered safe and well-tolerated, interactions with other medications can occur and are not always known, so you might want to consult with a health care professional. We could not find any data about benzimidazoles interaction with corticosteroids. Chances that two drugs will create negative synergy are slim, but we can not advise you to mix it without knowing the outcomes.
Has anyone taken fenben while also taking 1300mg a day of Tylenol. I must take this daily for paine.
Hello, Paul, thank you for a question.
It’s essential to follow the recommended dosage guidelines and avoid exceeding the maximum daily dose without consulting a healthcare professional. If you’re taking 1300 milligrams per day of Tylenol, you should be cautious and monitor for any signs of liver problems, such as abdominal pain, nausea, vomiting, jaundice, or changes in liver enzyme levels through blood tests. When combining fenbendazole and Tylenol, it is imperative that you exercise additional caution and remember to take milk thistle for the benefit of your liver. In contrast, fenbendazole does not exhibit any additional recognized adverse effects.
I am experiencing late stage four prostate cancer with mets to my liver, bones, & lymph nodes. I’ve been on the protocol for over 3 months with no apparent benefit.
Do you know of any cases, in which an increase or addition has demonstrated an improved result?
Conversely, it will also be very helpful to know if you know of those for which, for some reason or another, this protocol did not work. I have been wondering if the Lupron may be impeding progress. As you can imagine, any feedback will be greatly appreciated. Thank you for your service. Sam
Hello, Sam! Thank you for a question!
We do know cases when fenbendazole really helped in similar cases. Unfortunately, there are instances in which it failed to produce the desired results.
There may be lots of factors that can influence treatment effectiveness:
Genetic Factors: Genetic mutations and alterations in cancer cells can affect their sensitivity to fenbendazole and other treatments. Variations in drug metabolism, drug transporters, and drug targets can influence how cancer cells respond to fenbendazole therapy.
Treatment Resistance: Cancer cells can develop resistance to fenbendazole and other therapies through various mechanisms, such as mutations in drug targets, activation of alternative survival pathways, and changes in the tumor microenvironment. Over time, cancer cells may become less responsive to fenbendazole treatment, leading to treatment failure.
Individual Differences: Each person’s response to fenbendazole therapy can vary based on factors such as overall health, immune function, lifestyle factors, and concurrent medications. Additionally, the presence of comorbidities or other underlying health conditions may affect treatment outcomes.
Hi, fortunately until today I have not been diagnosed with any type of cancer, can I take fenbendazole as a precaution?? If yes, how should I take it?? Thank you
Hello Maria,
Yes, it is possible to use fenbendazole prophylactically. You can use the dose calculator to determine the appropriate dose and schedule for your needs. This tool will help you understand the right amount and frequency to take fenbendazole safely and effectively.
You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Some people seem to use a 1g packet of fenben Panacur.. Which is 4 Xs the 222mg. Is that the loading dose or that in correct.
Hello, Pam! Thank you for the question.
One gram of Panacur has 22% of fenbendazole. It means that in one packet you get 222mg of pure fenbendazole. It is not a loading dose – it is maintenance dosage with Panacur.
Hi there!
What dosage would you take if it is in liquid for (100g per litre) for parasite treatment please?
Do you mind if I quote a few of your articles as long as I provide
credit and sources back to your webpage? My blog is in the very same
niche as yours and my users would definitely benefit from some
of the information you provide here. Please let me know
if this alright with you. Thanks a lot!
Hello and thank you for kind words!
As long as you provide credit and sources back to our webpage, feel free to share this information with the public!
I have stage IIIb high grade ovarian cancer that has spread to surfaces of my liver, bowel, bladder, spleen, and several other surfaces within peritoneum. I am in the middle of chemo, and had a CT scan last week showing progression, especially around the surface of my liver. I am starting my fourth round of chemo tomorrow, and I just started taking daily 222mg fenben over the past four days, and will take a break two days before and after chemo.
Question 1: is it okay to take fenbendazole while fasting?
My liver enzymes were slightly elevated before chemo, and have been trending down. I will get new liver test results tomorrow, which may show effects of four days of fenben.
Question 2: how frequently should I have liver enzymes tested?
Dear Susannah, thank you for your question.
We would like to begin by stating that fasting is already a tremendous physical strain and that we do not recommend it. Fenbendazole is reabsorbable into the bloodstream through the digestive tract. Thus, fasting inhibits metabolism, reduces the efficacy of fenbendazole, and places a tremendous strain on the liver.
Additionally, we advise discontinuing fenbendazole a few days prior to, during, and subsequent to chemotherapy.
In response to your second question, perform an enzyme test every two months at minimum. The more frequent- the better.
Can fenbendazole be taken while receiving chemotherapy? Thank you
Greetings, Sue! Your question is greatly appreciated. Greetings!
It is recommended, according to the most reliable practices, to discontinue fenbendazole at least two days prior to your chemotherapy session and to resume it no sooner than a few days after your discharge from the hospital. Chemotherapy primarily targets rapidly proliferating cells within the body, including those associated with cancer, hair, nails, skin, and more. The administration of fenbendazole results in the inhibition of cancer proliferation and a reduction in the efficacy of subsequent chemotherapy. Although fenbendazole works well in conjunction with chemotherapy, be sure to discontinue use as directed.
Has this ever been used for Essential Thromblcythemia?
Hello, Peggy, thank you for a question!
Essential thrombocythemia (ET) is not a type of cancer. It is a chronic blood disorder. While ET shares some similarities with cancers, such as abnormal cell growth and proliferation, it is classified as a myeloproliferative neoplasm (MPN) rather than a cancer. As of our most recent knowledge, there is little scientific evidence to support the use of fenbendazole for essential thrombocythemia.
HI: I’m researching Fenben for parasites (for myself). I was born with only my left kidney, so I am cautious about medications that I take. I would like to know if there has been any reported damage to human kidneys – from the research that I’ve done so far, I have not seen any. Thank you.
Hello, Kyle! Thank you for a question.
As of our knowledge, there have been no reported cases of kidney damage specifically attributed to fenbendazole use in humans.
Since you have a unique medical history with only one kidney, it’s important to exercise caution before starting any new medication, including fenbendazole. If you experience any unusual symptoms or changes in kidney function while taking fenbendazole, such as changes in urination, swelling, or discomfort in the kidney area, it’s important to seek medical attention promptly.
Hi there, appreciate all the work you do.
So my wife and i have been taking fenben as a prophylactic following the dosages the past several months. No ill effects from it at all, experiencing good health overall.
We recently found out she is 5weeks pregnant, what is your *purely educational* opinion on keeping my wife treated for parasites during pregnancy?
Thanks
Hi, Oskar, thank you for your question!
If you’re thinking about keeping up with Fenbendazole while pregnant, the best step is to chat with a doctor first since there’s no clear info on its safety during pregnancy in the documents I have. Also, keeping an eye on liver health might be a good idea, and maybe even taking it a bit easier with the dosing schedule could be wise. Just to play it safe for both mom and the little one on the way.
I’ve been fighting ovarian cancer for 5 years. There is no sign of cancer in my abdomen but has now moved to spots on my liver, diaphragm and a lymph node. I started on a regimen of ivermectin along with my chemotherapy. My latest scan shows most spots have gotten smaller. I would also like to supplement with fenbendazole. Do you think I should stop the ivermectin and only do fenbendazole? Maybe alternate? or is it safe to take both together?
Dear Becky, thank you for the question! We think that fenbendazole is enough. Ivermectin is not as predictable on your organism and the dosage is unclear. You should be just fine with fenbendazole alone, given it has less side effects and it is more easy to avoid them. Stay strong and God bless!
Hello i am taking Fenbendazole for the cancer protocol and am experiencing a grey colored stool for the past 2 days. Is this sometime i should be worried about? Thank you
Dear Suzanne, thank you for your question! Fenbendazole does not change color of your feces. You should go to a medic care professionals to evaluate your health, because grey feces may indicate some other condition, but it is not related to fenbendazole.
My husband has read that Fenben can cause bacterial infections. Is there research somewhere where I can read about this?
Hello Sherry, thank you for a question. However, It’s essential to follow the recommended dosage and administration guidelines when using fenbendazole. We have not found information about fenbendazole causing bacterial infection and never had people commenting of getting infection related to fenbendazole use. Theoretically there could be some rare cases, where it may potentially disrupt the balance of bacteria in the gastrointestinal tract, leading to an overgrowth of bacteria or opportunistic infections. But such cases could happen only if a person does not use the instructions and uses fenbendazole inadequately.
How safe is the usage of Fenbendazole designated for animals, in humans? Thanks
Hello Stevan and thank you for this question.
Based on toxicology studies, benzimidazoles such as Fenbendazole, Mebendazole or Albendazole seem to be safe drugs.
However, a drug without any side-effects does not exist. Scientific data reports do not reveal significant adverse reactions from taking fenbendazole. Despite the fact, there are anecdotal reports of potential toxicity:
Up to 5 % of people can experience stomach discomfort or diarrhea when taking large quantities of fenbendazole with no breaks.
People with severe liver or kidney failure have lower medication excretion rates, therefore, fenbendazole can accumulate and cause unexpected side-effects. Doses should be divided accordingly in this situation.
When used in large quantities for a long period of time without breaks, fenbendazole can cause an asymptomatic liver enzyme increase due to the fact of the substance being mainly metabolized in the liver. This is reversible with the help of a couple week pause from the medication.
Has anyone bought the Sodium Dichloroacetate talked about here on the web? I’ve been thinking of adding it to my FenBen treatment. Thanks!
Good morning. I received 444 mg of fenbendazole, but I’m supposed to take 222 mg. My question is, is it possible to take half the pill? Best regards and thank you very much, Mabel.
Hello Mabel,
Yes, you can take half of the 444 mg capsule to reach the intended 222 mg dose. The best way to ensure accuracy is by using a small digital scale to weigh the powder—these are inexpensive and widely available online. Simply open the capsule, weigh out half (about 222 mg), and mix it with food for better absorption. Store the rest in a sealed container in a cool, dry place. Wishing you all the best.
Can fenbendazole help with Posterior Cortical Atrophy (PCA) or any type of Alzheimer’s or dementia?
Hello Amy, thank you the question. While some research suggests that fenbendazole may have potential neuroprotective properties in preclinical models, its efficacy and safety for treating neurodegenerative diseases in humans have not been established.
Has there been success with Fenbendazole and stage 4 HS Ovarian cancer?
What type of CBD oil is recommended: full spectrum, broad spectrum, or isolate?
Hey, Rob, thank you for your question.
There is no major difference because THC is not essential. It doesn’t make much difference which spectrum you use. THC only enhances appetite if the patient does not have any. CBD just helps you sleep better and relax down.
I want to purchase fenben for my 35 plus lb beagle who has mammary tumors. I have no clue what to buy, how much to give.. thanks for your help
Dear Becky, thank you the question!
You may use our fenbendazole dosage calculator https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/ to know how much would you need. Also we have a section https://www.fenbendazole.org/suppliers/ for you get familiar with top rated suppliers.
For peacocks, how much should we add to a gallon of water?
Dear Dee,
Thank you for a comment! Peacocks can be sensitive to medications, and the dosage may vary based on factors such as the weight of the bird, the type of parasites being targeted, and the severity of the infestation. Additionally, the concentration of fenbendazole in water can vary depending on the formulation of the medication.
It’s essential to consult with a veterinarian who has experience with avian medicine to determine the correct dosage and administration method for treating parasites in peacocks.
Is there a protocol to use fenbendazole for cancer prevention in dogs who have thus far been cancer free age 2 years old and 3 years old. I have lost two dogs to cancer – so would like to do anything I can to avoid it. Please advise.
Kindest regards,
Carrie Venclauskas
Dear Carrie,
Hi there, and thanks for your fantastic comment! Our protocol can be utilized for prevention purposes. You can locate it in the “Fenbendazole Information” section under “Fenbendazole Dosage Guide.” Just scroll down a bit and you’ll find the “Preventing Cancer Relapse – Prophylactic Protocol.” Also, don’t forget about our dosage calculator, which you can use based on weight. We trust this information will come in handy.
Warm regards
Hello,
How long does FB last …I’d love to get some now before it is somehow banned, but does it lose potency over time? How long until it expires?
Thank you!
Hey Caroline, thank you for a question!
Fenbendazole, like many medications, can degrade over time and may lose potency if not stored properly. The shelf life of fenbendazole can vary depending on factors such as the formulation (e.g., tablets, paste, suspension) and storage conditions.
In general, fenbendazole products typically have expiration dates printed on the packaging or label. It’s important to check the expiration date before using fenbendazole and to discard any expired medication.
Overall, fenbendazole is a long lasting drug and should be okay to use for years if stored properly.
To help maintain potency and stability, fenbendazole should be stored according to the manufacturer’s instructions, typically in a cool, dry place away from direct sunlight and moisture. Avoid exposing fenbendazole to extreme temperatures or environmental conditions that could accelerate degradation.
If you’re unsure about the potency or expiration of fenbendazole, it’s best to consult with the manufacturer or pharmacist for specific guidance.
Does it have a flavour? I opened a capsule. and tasted zero flavor
Hello, Shelly!
In general, fenbendazole is not known to have a strong or distinctive taste.
Hello
My mother is taking fenben 2 capsules daily 440 mg with no rest day .they stopped the chemeo cause she didn’t well tolerated it.now they are going to give her kisqali 200 mg each day can she still taking fenben with? Or it will interfere with it ? Please If anyone can help my mom has mastitis cancer and wounds all over her breast no
Hello Julia,
Fenbendazole is generally regarded as safe and well-tolerated.
We are not aware of any documented interactions with Ribociclib (Kisqali), but be aware that drug interactions can occur, and not all potential interactions are well documented. It is important to remember that all medications can have side effects.
For this reason, we recommend that your mother regularly monitor her health and conduct routine blood tests to ensure everything remains in balance.
We also suggest using our dose calculator. We recommend not to exceed a dose of 444mg per day. Please rely on our calculator, it is calibrated in such a way as to achieve the maximum benefit of the treatment and to cause as little harm to the patient’s body as possible.
You can access the dose calculator by clicking on this link:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Can this drug help with the person has symptom of Parkinson? I read most of the comments and it seemed like they all have cancers not once case has Parkinson. Please let me know. Thanks.
Hello Tanya, thank you for this interesting question.
There is limited scientific evidence to support the use of fenbendazole for treating symptoms of Parkinson’s disease.
We have the liquid Safe Guard. We would like to know the calculations for the liquid form of Safe Guard vs. the pills for humans. For both parasites and cancer. Thank you in advance.
My 15 year old cat has squamous cell carcinoma and I have treated her with the fenbenazole for 2 months with great success! Her liver enzymes are scheduled to be tested. What is the maintenance dose after all carcinoma is gone? Any other blood work necessary and how often?
Dear Joan, thank you for a question!
Dose for maintenance can be reduced by 25% and also you can make a bigger pauses in her regiment.
In addition to monitoring liver enzymes, your veterinarian may recommend regular blood work to assess your cat’s overall health and monitor for any potential side effects or changes in blood values. The frequency of blood tests may vary depending on your cat’s individual health status and response to treatment.
Hello, I have a 100lb. dog that had a mast cell tumor removed successfully. I would like to give him a maintenance dose of fenbendazole to prevent any future tumors/cancer, since I’ve read that this type of tumor reoccurs at a higher than average rate. Can you recommend the dose and frequency that he should be on?
Greetings, Jen, Your question is appreciated.
A calculator is applicable not only to humans but also to animals. Write weight after selecting “Protocol for” (Animal), “Species” (Dog). In the case of inactive cancer (remission), an additional day per week may pass without fenbendazole treatment, and the dosage may be decreased by 20-25%.
I have just bought a 500mg pack of Fenbendazole 45 tabs to a pack. How many should I take a day?
2 ?’s, first does fendbend have an expiration date? And is it 100% effective?…meaning that the majority of people that have been diagnosed with cancer survive? tricky question I know…but do your best. Thank you 🙂
The radiation Oncologist said my husband should not take supplements while receiving radiation.
Hello, Mary. Thank you for a comment.
You should definitely follow the advice of your physician. Traditional treatments, including radiation, primarily target rapidly dividing cells. Since fenbendazole inhibits the proliferation of cancer cells, radiation therapy may be less effective. Fenbendazole use may be discontinued two days prior to and two days following a radiation session. You may then proceed with your fenbendazole regimen.
Can my husband use Fenbendazole while receiving radiation for pancreatic Ca?
Hello, Mary! Thank you for this question.
We advise pausing fenbendazole approximately two days prior to radiation therapy and resuming it a few days afterward for optimal efficacy and minimal physiological strain. Additionally, do not overlook blood tests for the purpose of monitoring liver enzymes. Test at least every four to five months.
Any experiences this working for Multiple Myeloma? And is there a list of chemos this is not safe with?
Hello, Tyler. Thank you for a question.
Fenbendazole is efficacious and relatively safe when combined with chemotherapy.
Nevertheless, there are a few matters that require our attention. Traditional therapies such as radiation, chemotherapy, and others primarily target rapidly dividing cells. Fenbendazole inhibits the multiplication of cancer cells, which may reduce the efficacy of chemotherapy. Fenbendazole use may be discontinued two days prior to and two days following a radiation session. You may then proceed with your fenbendazole regimen.
Hello,
Is there a difference between Fenbendazole and Albendazole? Can Albendazole be used in place of Fenbendazole?
Thank you!
TW
Hello and thank you for this question.
The qualities of every benzimidazole are quite comparable. Albendazole, mebendazole, and fenbendazole are the most well-known, but fenbendazole has been the subject of more research regarding its use in cancer cases. However, considering albendazole’s properties, it ought to function as well.
How much is too much?
Hello Mashumichelle, thank you for this interesting question!
The term “too much” is subjective, as the effectiveness of fenbendazole varies considerably between individuals. First, the half-life of fenbendazole varies between 2 and 24 hours. Furthermore, hepatic copasity in humans is highly variable, varying among factors such as genetics, age, gender, and immune system status. Therefore, you should undergo blood tests for liver enzymes at least once every three months to ensure that the levels are not excessive.
Dear friends, my 87 year old wife has been treated for 4 years with chemotherapy for ovarian cancer. Her cancer marker (CA125) has been climbing, she is fatigued and weak. Is it okay for her to take Fenbendazole alongside the chemo ? Can she benefit from doing so? I would very much appreciate your advice.
Thank you very much and merry Christmas
Ron Warner
Muncie, Indiana
Hello, Ronald. Thank you for a question.
Fenbendazole is efficacious and relatively safe when combined with chemotherapy.
Nevertheless, there are a few matters that require our attention. Traditional therapies such as radiation, chemotherapy, and others primarily target rapidly dividing cells. Fenbendazole inhibits the multiplication of cancer cells, which may reduce the efficacy of chemotherapy. Fenbendazole use may be discontinued two days prior to and two days following a radiation session. You may then proceed with your fenbendazole regimen.
Can I give a treatment to my 3yo child. And how much should I give him to prevent parasites.
Hello Yelena,
Depending on your child’s age, we recommend consulting with your pediatrician, who can prescribe the appropriate anthelmintic medication.
Will Fenbendazole with ivermectin normalize glucose levels? If so what dosage & frequency
Hello, Jim, thank you for a question!
There is limited evidence suggesting that benzimidazoles and ivermactin, may have the potential to affect blood glucose levels, but the mechanisms and significance of this effect are not well-understood. Some studies have reported changes in glucose metabolism in animals treated with benzimidazoles, but further research is needed to clarify these findings and determine their relevance in humans.
Can I take fenbendazole and begin a herbal parasite cleanse?
Hello, Rosa!
Yes, you can do fenbendazole protocol for parasites and meanwhile use herbal remedies for a cleanse. Fenbendazole has only a few side effects and is considered safe. However it is hard to consult more, since we do not know what herbal remedies you are using. You should monitor liver enzyme changes via blood test and see how is is your overall health. Consult with a doctor if needed. Best regards!
Wondering if there are any studies or information on how fenbendazole effects the microbiome health?
Dear Deborah,
Based on toxicology studies, benzimidazoles like Fenbendazole, Mebendazole, and Albendazole are generally considered safe. However, no drug is completely free of side effects. While scientific data does not indicate significant adverse reactions from taking fenbendazole, there are anecdotal reports of potential toxicity:
Up to 5% of individuals may experience stomach discomfort or diarrhea when taking large quantities of fenbendazole continuously without breaks.
Does this work in relation to breast cancer, mets to liver ? Or anywhere else in the body
Hello L,
Fenbendazole has been used in the treatment of various types of cancer, including breast cancer and liver metastases. You might find it informative to read relevant case reports on this subject:
https://www.fenbendazole.org/case-report-metastatic-breast-cancer-83-female-2/
https://www.fenbendazole.org/triple-negative-breast-cancer/
I found 1000mg fenbenzadole tablets from an online pharmacy in India. The brand is Jeerima, and the packaging says each tablet actually contains 1000 mg fenbenzadole, with no other fillers. If I break each tablet into four equal pieces, and swallow one piece a day (approximately 250mg/piece of the tablet), do you think that should be acceptable if I’m trying to get close to the 222mg/day dose? And do you think I can just swallow the piece whole, rather than grinding it in to powder? It just seems the other brands available have other ingredients or fillers that make up part of that 1000mg total, and they come in powder instead of tablet form. So I want to make sure I’m comparing apples to apples when comparing these tablets to the powder forms. Thank you.
Hello Mary,
If your recommended daily dose of Fenbendazole is 222mg, it is perfectly safe to take 250mg. You can achieve this by dividing a 1000mg tablet into four equal parts. Regarding your question about the form of Fenbendazole—whether powder or tablets—it will not affect the absorption of the active substance, so choose whichever form is more convenient for you.
It is important to note that tablets contain additives to maintain their shape, whereas powder is a pure form without impurities. Given this, I recommend reviewing the products from reliable suppliers on our website to make an informed decision about which form to use.
You can find more information and options at: https://www.fenbendazole.org/suppliers/
You mentioned the possibility of liver injury with longer term use of fenbendazole. I appreciate how your protocol includes herbs and also breaks from fenben to prevent that from happening. One thought I had was that liver injury can also be compounded by chronic high dose of curcumin? Also, can you please comment on the side effects of fenbendazole on the bone marrow? I came across some reports of general bone marrow suppression and neutropenia in particular. Has your protocol been evaluated for this?
Dear Vidya,
Thank you for your question.
Curcumin should not cause any adverse effects when administered in accordance with our protocol. On the contrary, prolonged use of substantial quantities may result in adverse effects.
Regarding the second aspect of your question, it is indisputable that chronic administration of high concentrations of Fenbendazole has an impact on the bone marrow. However, our protocol is structured to allow you to select a safe dosage and administration schedule that includes recovery periods. Fenbendazole should therefore have no adverse effect on the bone marrow when administered as directed.
Does fenbendazole treatment work for lymphoma? My uncle was just diagnosed with large b cell lymphoma. He is so sick now since they dragged their feet and he can’t do chemo. I’ve been trying to get my aunt to give him the fenben I bought.
Dear Michelle,
There are known studies on the possible positive effect of Fenbendazole in the treatment of lymphoma. Because of this, your uncle may start using Fenbendazole.
However, considering your uncle’s serious condition, the treatment may not give the desired results. But it can influence the course of disease development and slow it down.
If you decide to give Fenbendazole to your uncle, taking into account the serious condition of the patient, be sure to monitor his general condition and do regular blood tests.
Are there any success stories or research on Fenben and autoimmune? Like Rheumatoid Arthritis?
Hello Bec,
Fenbendazole is primarily an antiparasitic drug used to treat infections caused by various parasites, commonly in animals. It belongs to a class of drugs known as benzimidazoles. Although fenbendazole is primarily used for parasitic infections, there has been some evidence and experimental studies exploring its effects on other conditions, including certain cancers, due to its potential anti-inflammatory and immune-modulating properties.
However, there is limited to no clinical evidence supporting fenbendazole’s effectiveness for treating arthritis in humans. The use of fenbendazole for conditions other than its approved indications, especially in humans, should be approached with caution and ideally under the guidance of a healthcare provider.
If you or someone you know is considering fenbendazole for arthritis, it’s important to consult with a medical professional to discuss the potential benefits, risks, and evidence-based treatment options available for arthritis management.
what is the purpose of taking the CBD oil? Is it just for pain? Can it be left out of the protocol treatment?
Dear Connie,
CBD may help alleviate symptoms associated with cancer and its treatments, including pain, inflammation, nausea, and anxiety. However, its use is not mandatory but rather recommended as part of a broader treatment plan. When deciding to incorporate supplements or medications like CBD, it’s crucial to always consider the patient’s specific condition and overall well-being.
I’m currently using fenbendazole on my dog for cancer. I’m using it everyday as I feel her cancer is progressing quickly. She is on other meds for pain and also prednisone. My question is: can acetaminophen with codeine be used with fenben? I read someone’s blog that stated they shouldn’t be used together. I have a few times but won’t anymore until I find the answer. Thank you.
Hello Michele,
Fenbendazole is generally recognized as safe and well-tolerated. However, several scientific articles have discussed potential liver effects when Fenbendazole is used with Acetaminophen.
Therefore, it is important to consult with your veterinarian before making a decision. If you decide to administer Fenbendazole along with Acetaminophen and Codeine, we recommend closely monitoring your dog throughout the day and conducting regular blood tests and enzyme tests to ensure your dog’s well-being.
To obtain curcumin, is it possible to take , curkuma and extract curcumin from it?
The real question is; is curcumin a ingredient of curcuma?
My wife is diagnosed with fast-growing troath-canser (begin okt ’23) chemo is out of the question as also radiation . She started with Panacur begin nov. And reacted good, began eating again and regained strength. The radiation treatment that was offered to her to reduce pain, turned the recovery around, and only stopping eating and sick feeling was left as result. Now se is ready to continue with Panacur and additional curcumin because her age and poor liver condition.
Has anyone tips how to get curcumin / curcuma?
Hello Louis,
It is great to hear that the Fenbendazole treatment is showing positive results for your wife’s health. Regarding your first question, curcumin is a key ingredient found in turmeric, which is a spice made from the root of the plant Curcuma longa. Curcumin is the main active component of turmeric and is responsible for its vibrant yellow color and many of its health benefits.
In response to your second question, curcumin supplements are widely accessible and can be purchased from numerous pharmacies or online retailers.
Additionally, we recommend considering other supplements that might enhance the benefits of Fenbendazole. You can explore a recommended list of such supplements through this link:
https://www.fenbendazole.org/fenbendazole-information/supplements/
Does Fenbendazole + help with Lyme Disease or tick bite illnesses?
Dear WeRColt,
Fenbendazole is primarily recognized as an antiparasitic medication used in veterinary practices. Recently, it has garnered attention for its potential anticancer properties. However, there is no scientific evidence supporting its effectiveness in treating Lyme disease or other tick-borne illnesses.
Lyme disease, which is caused by the bacterium Borrelia burgdorferi and transmitted through tick bites, is typically treated with antibiotics. Effective medications for this condition include doxycycline, amoxicillin, and cefuroxime, all of which target the bacterial infection directly.
It is crucial for patients to consult with healthcare professionals for accurate diagnosis and treatment of Lyme disease or similar tick-borne diseases. These professionals can offer guidance based on established medical research, ensuring treatments are tailored to individual health requirements.
I bought it for myself. I got the 100g powder. How often should I take it?
Dear Patrick,
Thank you for your question. Fenbendazole should be taken once daily, either with or after a meal, to enhance the medication’s absorption. For the correct dosage and schedule tailored to your body weight and treatment objectives, we recommend using our dose calculator. You can find all the necessary information and answers to your questions by visiting the following link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Can Fenbendazole be used topically on nails to treat nail fungus? I know I’ve read it can somewhere but can’t find the information.
Dear Beverly,
Fenbendazole is an antiparasitic medication commonly used in veterinary medicine and more recently explored for potential anti-cancer properties in humans. It is not typically formulated or intended for topical use, especially on human nails to treat fungal infections.
For nail fungus, treatments typically involve antifungal medications specifically approved for that use, either in topical forms like creams and lacquers or in oral form for more severe cases. Examples include terbinafine, ciclopirox, and amorolfine.
Using Fenbendazole topically for nail fungus is not supported by clinical research or medical guidelines. It’s crucial to consult a healthcare provider to get the right diagnosis and treatment recommendations for nail fungus. They can prescribe appropriate antifungal treatments that are safe and effective for your condition.
Good Evening … I accidentally purchased 444mg capsules instead of 222mg capsules. How would I be able to accurately reduce the dosage to 222mg? Thank you for any recommendations.
Dear Holly,
You can open the capsule and divide the contents in half. This approach will provide you with two doses, one for each day.
You can mix the powder from the capsules into food, yogurt, juice, or water for consumption.
The dosage for my weight says 444 mg. Is it better to take 222 mg twice a day, morning and evening or, the whole 444 mg at once?
Hello Jim,
Fenbendazole should be taken once a day, either during or after a meal to enhance absorption. If the dose calculator has determined that your daily dosage should be 444mg based on your body weight, you should take this entire amount at one time each day.
Whats the difference between the 444 and 222 Fenbendazole? Protocols and dosages? TYSM!
Hello Melissa,
The numbers 444 and 222 represent the dosages of Fenbendazole in milligrams. To determine the appropriate dosage schedule for your needs, you can use our dosage calculator. It’s available for free and can help you calculate the correct amount of Fenbendazole based on various factors. You can access the calculator below:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
hi Dear Sir or Madam,
My father has HBV, unfortenatly so called “each year control potocol” falied, and he got HCC 80mm and the two smalest 40mm and 20mm. in 7 and 8 sector of liver. Twoo weeks ago he had TACE procedure on the big one, with 100% success.
Fenbenlab has a two kind of capsules dosages, 222mg and 444mg.
Can i bay 444mg and divadet on half, or is better 222 each ?
Please you opinion about my intention give to him 444mg every second day or every day mon-fri and weekend rest ?
Best wishes,
ljupcho kotevski
Skopje
Macedonia
Europe
Hello Ljupcho,
You can split the 444mg capsule in half to create a two-day supply.
We recommend using our dose calculator to determine the correct dosage for your father. Fenbendazole should be taken once daily, following the schedule outlined by the dose calculator.
We advise against experimenting with dosages or changing the prescribed administration schedule. Therefore, we do not recommend taking a dose higher than 444mg per day.
Our dosage calculator is designed to maximize the effectiveness of the treatment while minimizing potential harm to the patient’s body. Given your father’s health, we suggest continuously monitoring his overall health condition and conducting regular blood and liver enzyme tests.
You can find the dosage calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Would there be any problems taking this the same time as taking Essiac Tea?
Hello Anita,
Fenbendazole is generally considered safe and well-tolerated, making it likely safe to use alongside Essiac tea or other herbal supplements. However, it’s important to note that not all possible interactions are well-documented. Remember that all medications and supplements can have side effects.
For this reason, we recommend regular monitoring of your health and routine blood tests to ensure everything remains in balance. Always consult with a healthcare professional before starting any new treatment regimen to ensure it is appropriate for your specific health needs and conditions.
Through research that I have done, I know that Fenbendazole has promising results on “organ tissue cancers” or “soft tissue cancers”. I have not found any information on the effects of Fenbendazole on bone metastasis. Can you enlighten me on this???
Hello Anne,
Some reports and preliminary studies suggest that fenbendazole may inhibit the growth of cancer cells and potentially cause cancer cell death. However, scientific evidence supporting its effectiveness in fighting bone metastases or other types of cancer in humans is still limited and not well known.
Although there are promising signs of the possible anticancer effects of fenbendazole, it is very important to use it with caution and choose an appropriate administration schedule. You should also constantly monitor the general condition of the patient and regularly check his blood tests.
If you are going to use fenbendazole, it should be part of a comprehensive treatment plan under the guidance of your healthcare provider and not as a substitute for standard cancer treatment.
In conclusion, although there is some interest in fenbendazole for its potential anticancer properties, including its use in the treatment of bone metastases, more research and clinical trials are needed to confirm its effectiveness.
Are there many reports of side effects from using fenbendazole in the human population? If yes, what are the most common side effects in the different body systems?
Hello Irene,
Fenbendazole is generally considered a reasonably safe and well-tolerated drug. However, there have been few reports and anecdotal evidence of its side effects in humans. Although detailed data are limited, the most commonly reported side effects of fenbendazole in humans include: Nausea, Vomiting, Diarrhea, Headache, Dizziness, Elevated liver enzymes.
Most side effects are usually mild and short-lived, but more severe reactions can occur, especially with long-term use or higher doses. It is important to note that because fenbendazole is not approved for human use by regulatory agencies such as the FDA, formal studies are limited, and the full range of potential side effects may not be well documented.
In summary, while there are reports of side effects of fenbendazole in humans, comprehensive and systematic data are lacking. The most commonly observed side effects involve the gastrointestinal system, the central nervous system, and the liver. These side effects are very rare and usually last for a short time.
My son suffers with chronic Epstein-Barr. Every time he gets a cold, it turns into an EBV flare up that takes many weeks to resolve. Would Fenbendazole help him?
Dear Susan,
Fenbendazole is an antiparasitic drug primarily used to treat worm infections in animals and, to a lesser extent, in humans. Its potential anticancer properties have also been explored in preliminary studies and reports. However, there is no scientific evidence to support the use of fenbendazole to treat viral infections, including Epstein-Barr virus (EBV).
Although not specifically approved for EBV, some antiviral drugs, such as acyclovir, can be used in severe cases under a doctor’s guidance.
In conclusion, there is no evidence that fenbendazole can help fight the Epstein-Barr virus. It is important to consult with your healthcare provider for proper diagnosis and treatment options. Always rely on evidence-based treatments and professional medical advice to manage viral infections.
Do you have any recommendations for a 59 yr old that’s been suffering with MS?
Dear Karen,
There is currently no scientific evidence to support the use of fenbendazole for treating multiple sclerosis (MS). The exact cause of MS is unknown, and it is typically managed through a combination of medications and lifestyle adjustments to slow the progression of the disease and manage symptoms.
Drugs such as interferons, glatiramer acetate, and newer oral medications like fingolimod, dimethyl fumarate, and siponimod aim to reduce the frequency and severity of relapses and slow the progression of the disease.
A doctor may also prescribe medications to help manage specific symptoms, such as muscle spasms, pain, fatigue, and bladder problems.
Physical therapy can improve mobility, strength, and coordination. Additionally, regular exercise, a balanced diet, and stress management can support overall health and well-being.
In conclusion, although fenbendazole has been studied for its potential anticancer properties and is primarily used as an antiparasitic drug, there is no evidence that it is effective in treating MS. If you or someone you know has MS, it is important to consult with a healthcare provider to discuss appropriate treatment options based on current medical guidelines and evidence-based practices.
Does fenbendazole have any animal products in it ? I am allegic to beef. pork, lamb
Hello Paula,
Fenbendazole itself, as an active pharmaceutical ingredient, does not contain products of animal origin. However, the formulation of the final product, such as tablets or capsules, may include various inactive ingredients (excipients) that could contain components of animal origin.
For this reason, we suggest you analyze the list of Fenbendazole suppliers we offer and choose the pure substance in powder form. This way, you avoid the risk of buying medications with auxiliary substances typically found in tablets or capsules.
You can find the list of suppliers by clicking on this link: https://www.fenbendazole.org/suppliers/
My husband has colon cancer that spread to his brain he is going to be going on hospice next week it has started to effect his thinking some . Do u think it is to late for this protocol and would it help him have better quality of life.
Hello Connie,
If your husband’s general condition allows for off-label medication, you might consider trying Fenbendazole. While it’s challenging to eradicate cancer once it has spread, Fenbendazole may help slow the progression of the disease and improve his overall well-being.
could you explain the dosage for taking fenbendazole. I weigh 75KG how much should I take, is it with food, and for how many days. How long till I take a second round and do I need a 3rd round to kill parasites?
Dear Tracy,
You can find all the information you need by clicking on this link:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
This is our dose calculator, which will calculate the required dose of Fenbendazole according to your body weight and advise you on how often to take it. Fenbendazole is typically recommended to be taken once a day with or after food, but you can confirm this with the dose calculator. The calculator also suggests additional supplements that can help enhance the effect of Fenbendazole and contribute to your overall well-being.
If you have any further questions, we will be happy to answer them.
I am trying to order fenbendozole in tablets but most of the tablets spell it Phenbendozole. Is this the same pure fenbendozole?
Hello Brenda,
We recommend that you view our list of reliable suppliers, which you can find here: https://www.fenbendazole.org/suppliers/
This will help you avoid purchasing low-quality Fenbendazole.
Hello from the US. Thank you so much for providing a place for us to ask questions. I have FenBen 222mg from the FenBenLab site. I am treating my dog. The dose says 567mg. You may have the answer to this on the site but I don’t see it. Please suggest how I should treat him with the 222mg capsules, as I don’t know how much is filler and how much is medicine.
Thank you!
Hello Willow,
FenBenLab is one of the best suppliers that sell sufficiently pure Fenbendazole with a purity of 99.92%. You can find out more about this supplier here: https://www.fenbendazole.org/suppliers/fenben-lab/
We also suggest using our dose calculator. It will calculate the required dose and schedule for your pet based on its body weight. Be sure to specify in the “Fenbendazole for” section what you are treating your dog for.
You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you have any further questions, we are happy to help!
Why dose the panacure c have a red, green and yellow jacket for different weights, but each one still has 222mg per dose?
If the weight for a canine of 226 lbs is 5 red jackets, one green and one yellow per day, wouldn’t the dosage be the same for humans?
Hello Tonya,
• Red Panacur: For horses (10% concentration)
• Yellow Panacur: For dogs (22.2% concentration)
• Green Panacur: For small animals like birds and rabbits (concentration ranges from 2.5% to 10%, depending on the species)
Fenbendazole is a veterinary drug, and the dosage for humans is different from that for animals. We suggest using our dose calculator. Here you will find all the information you need. The calculator will determine the required Fenbendazole dosage and administration schedule based on your body weight and the purpose of the treatment, whether it is for parasites or cancer.
You can access the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
What is the protocol for parasite maintenance? Is it 3 days on 4 days off? and for how long? All that is coming up is the cancer protocol.
Dear ELISE,
Use our dose calculator and select “Parasites” under “Fenbendazole for.” The dosage calculator can be found here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/.
All the necessary information, including the required dose according to body weight and the administration schedule, can be found in the dosage calculator.
Would FenBen be helpful for tremors from Parkinson’s?
Dear Pam,
Thank you for your question. There is no scientific evidence or clinical trials to support the use of fenbendazole in the treatment of neurological diseases such as Parkinson’s disease, including associated tremors.
If I am on feeding tube and flush and not eating how much should I take and when, and should I take the cbd oil and curcumin too. Will it give me diarrhea?
Dear Bill,
The bioavailability of fenbendazole may be increased by the presence of food in the intestine. Eating food slows intestinal motility and increases gastrointestinal blood flow, which can enhance drug absorption. Therefore, it is recommended to take fenbendazole with or after a meal. Particularly, consuming fatty foods while taking fenbendazole can further increase the absorption of the drug.
CBD oil and curcumin are supplements known for their health benefits, but like any supplement, they can have side effects depending on individual reactions. CBD oil is generally well-tolerated; however, some individuals might experience gastrointestinal side effects such as diarrhea, particularly at higher doses. Curcumin, the active ingredient in turmeric, can also cause digestive issues, including diarrhea, especially when taken in high doses. The bioavailability of curcumin supplements varies, and some formulations may be tougher on the stomach than others.
If you are beginning any new supplement:
– Start with a low dose and increase gradually to monitor your body’s response.
– Pay attention to how your body reacts to these supplements, especially if you are combining them.
It’s advisable to have regular blood tests and monitor your general well-being. This practice helps ensure the safe and effective use of supplements in conjunction with any other treatments you may be receiving. Regular monitoring is especially important when starting a new supplement regimen or when combining supplements with other medications, as it helps in identifying any potential interactions or side effects early on.
Yes question,I am a 67 year old male and currently have a biopsy for my prostate scheduled.I weigh 200 lbs and am fairly healthy.My Father and a brother both had prostate cancer so a pretty good chance they will find it in mine as well.What would a good regimen for me as I lean heavily to natural treatments .Look forward to your response.Thank you
Dear Scott,
We suggest utilizing our dose calculator to determine the appropriate dosage of Fenbendazole for cancer prevention. Additionally, at the bottom of the calculator page, you will find a list of recommended supplements. These supplements are intended to enhance your overall health and boost the efficacy of Fenbendazole.
You can find the dosage calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hello and thank you for this site 🙏
I have been treating my dog for small cell carcinoma. I believe I have the dosages wrong, and have caused a platelet disorder resulting in a glaucoma. Mainly because I have had resistance here in Australia in accessing fenben in tablet form to treat my dog. As a result I turned to panacur, but it comes as 25g/l it has been up and down, definently slowed the aggressive growth, but we are still fighting for him. Sadly I have kept him at high dose for some time before being able to find this site, resulting in the glaucoma for which he is currently on prednisone high dose.
Could you please help me work out the correct dosage for a currently 23kg dog. I will probably take him off treatment for three weeks as suggested and then retry after that. Scary to allow the growth to happen but he is definitely in need of correct care and general advice on dosages. Thanking you so much for everything. Megan 🙂
Hello Megan,
We recommend using our dosage calculator to find the right dose of fenbendazole for your dog according to its body weight. You can access the dose calculator through this link:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Additionally, we encourage you to check out our list of trusted suppliers here:
https://www.fenbendazole.org/suppliers/
This will ensure you administer the correct dose for your dog and simplify your experience with fenbendazole.
Hello, I just purchased fenbendazole tablets and am trying to figure how to take them. Should I grind them up before using or just swallow them whole like capsules? I dont have cancer, wasnt vaccinated, and dont know if I have parasites, but Ive been hearing that everyone likely does, especially if they own pets, and I have two cats. If Im taking them for possible parasites, how often should they be taken?
Thank you for this website!!
~Bonnie Dolack
Hello Bonnie,
We suggest using our dose calculator to determine the appropriate dose of fenbendazole based on your body weight. You can find the dose calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
When using the calculator, make sure to select “Parasites” in the “Fenbendazole for:” section.
There is no need to crush fenbendazole tablets. If the calculator indicates that you need to take 222mg of fenbendazole, and you have 222mg capsules, simply take one capsule daily with or after food.
At the bottom of the calculator page, you’ll find all the necessary information. If you have any more questions, we will be happy to help.
Hi what colour is fenbendazole, and does it have an odour/smell? I purchased some which is advertised as being 99.9% purity; its a greyish/pinkish colour, not finely ground, with a strong odour.
Hello Dre,
Fenbendazole is typically characterized as an odorless, white powder. It is commonly found in the form of a fine, flour-like substance. Variations in color or the presence of odors can sometimes indicate impurities or other additives, as pure fenbendazole is expected to be colorless and without significant odor.
Are you able to take this in addition to the cancer treatments ?
Thank you
Hello Tim,
Yes, Fenbendazole is generally safe and well tolerated, and it often shows compatibility with a wide range of medications, supplements, and standard cancer treatments such as chemotherapy, immunotherapy, and radiotherapy.
Seems like most are using the 222 protocol to fight cancer. Is there a problem with the 444 fen ben? Would that be just as affective as the 222? Has anyone tested the 444 for fighting cancer?
Thank you.
Hello Alva,
The numbers 222 and 444 on the bottle indicate the amount of Fenbendazole in milligrams per capsule. The appropriate dose, whether 222mg or 444mg, depends on the patient’s body weight. Taking a higher dose than what is suitable for your body weight will not enhance the effectiveness of the treatment and may potentially cause harm.
We suggest using our dose calculator to determine the right dose for you. It will provide you with all the necessary information tailored to your specific needs. You can find the dose calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Are there any positive results on ovarian cancer and if so how long for results on fenbendazole.
Hello Denise,
Yes, Fenbendazole may potentially have a beneficial effect in treating ovarian cancer, but it’s challenging to predict exactly when you might see these positive effects. The effectiveness and timing of results from Fenbendazole as a cancer treatment can vary significantly, much like any other treatment.
The individual response can depend on various factors including the type of cancer, its stage, the patient’s overall health, and how the cancer reacts to the treatment. Fenbendazole is often used in conjunction with standard cancer treatments, such as chemotherapy and radiation therapy, which might also influence the timing and efficacy of the outcomes.
Given these factors, the effects of fenbendazole may become apparent within 1 to 4 months of use. Therefore, we recommend consistently following a prescribed protocol to assess whether this treatment approach is suitable and effective for your specific circumstances.
I do not have cancer, but want to take to be sure I am clear of parasites. Would a protocol be okay without being diagnosed with parasites? Thank you.
Hello Pat,
Thanks for your question. Yes, Fenbendazole is effective for preventing parasites. We recommend using our dose calculator to determine the appropriate dosage and schedule based on your specific needs. You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hi, thank you for this site, the information and testimonials provide hope and an opportunity to improve your life!
I have Stage 1 CCL (Chronic Lymphocytic Leukemia) and was wondering if the Fenbendazole protocol is effective with CLL and other blood cancers?
Thanks so much for your reply.
Dear Parker,
Yes, fenbendazole has been explored for its potential beneficial effects in treating various types of blood cancer, including CLL. However, the effectiveness of this treatment can vary significantly from one individual to another. The response to treatment depends on several factors, including the type of cancer, its stage, the patient’s overall health, and how the cancer reacts to the treatment. Fenbendazole is sometimes used alongside standard cancer treatments like chemotherapy and radiation therapy, which may also influence the outcomes and timing of results.
I was looking at taking this for suspected parasites. What mg strength and for how long do you take it.
Hello Angie,
We suggest using our dose calculator to determine the appropriate Fenbendazole dosage based on your body weight and the recommended schedule for treating parasites.
You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
I’m 156 lb and been taking fenbendazole once a day, 7 days per week. My PSA was at 174.1 before fenbendazole and is now at 74 after two weeks. I decided to increase to two doses a day morning and evening with olive oil and have been doing this almost one week. My cancer has metastasize to the spine. At beginning after starting this treatment, the spine pains was getting better and better each day. After one week, the pains start to increase again. Are the pains associated with the die-off? To complicate the pain issue, I recently took an infusion of Zometa (to rebuild bones and a bad decision) and the pains have become severe as that is one of major side effects of Zometa. Has anyone had experience with taking more one dose of fenbendazole a day?. For what conditions and the results? Experience with Zometa?
Dear G.L.,
It is excellent news that your PSA levels are decreasing with Fenbendazole treatment! Remember, treating cancer is a gradual process and should not be rushed. We advise you to continue following the prescribed protocol and use the Fenbendazole dosage as determined by our dose calculator, which factors in your body weight. Ensure you take the correct dose once daily. Also, to keep your liver enzyme levels healthy, it is crucial to incorporate short breaks in your treatment schedule, ideally taking 1-2 days off each week.
Thank you for posting this page, good information! Quick question, how to take Safe-Guard Crumbles at
.5%.?
Hello Kathy,
To calculate the correct amount of Safe-guard® 0.5% Crumbled material for dosing Fenbendazole, it is essential to understand the concentration and how it translates into milligrams:
For a 222mg dose: You will need 44.4 grams of Safe-guard® 0.5% Crumbled material. This is because each gram of this formulation contains 5mg of Fenbendazole (0.5% of 1000mg).
For a 444mg dose: You will need 88.8 grams of Safe-guard® 0.5% Crumbled material to achieve the necessary amount of Fenbendazole.
These calculations ensure you administer the correct dose based on the Fenbendazole content in the Safe-guard® product.
I am getting mixed messages. My husband has grade 4 glioblastoma, the tumor was successfully removed thru surgery. He is currently taking radiation and chemo (temador) simultaneously. Some say we should not take fenbendazole during chemo treatment and some say it is alright to take it. What should we do?
Hello Lori,
We recommend discontinuing Fenbendazole two days before, during, and two days after undergoing radiotherapy or chemotherapy.
Hello. I was reviewing your website and looking at dosages and protocols. I didn’t see anything specifically for Lyme Disease.
1) Do you have a Lyme-Disease protocol? Or would it simply be the protocol for general parasites?
2) I am 185-190 lbs. Should I break up the 444mg dosage into taking 222mg with breakfast and 222mg with dinner? Or should I take all 444mg at once?
3) Being that along with the Lyme, I have many co-infecting strains, should I do the 5-consecutive days on followed by 3 weeks rest more than just twice?
Thank you in advance for your advisement!!
🙂
Hello JOEL,
Unfortunately, fenbendazole is unlikely to be effective against Lyme disease, which is caused by the bacterium *Borrelia burgdorferi* and transmitted through tick bites. Unlike parasites, Lyme disease is a bacterial infection, and its recommended treatment involves antibiotics such as doxycycline, amoxicillin, or cefuroxime. These antibiotics are effective in clearing the infection when administered early.
Regarding the use of Fenbendazole as an antiparasitic, if the dosage calculator recommends 444 mg based on your body weight, you should take it once daily with or after a meal, without dividing the dose into smaller portions. The typical schedule for taking fenbendazole involves administering it once a day for five consecutive days, potentially repeating the cycle after three weeks.
I take 222 fenbenzole 2 times per day and was wondering if milk thistle is bad since I have Er + and PR Her2 negative that has moved to the liver.
Dear Lisa,
Milk thistle is known for its potential estrogenic effects, which could be concerning for those with estrogen receptor-positive cancers. While the evidence is not definitive, some research suggests that milk thistle might theoretically act similarly to estrogen.
Given that your cancer has metastasized to the liver, it’s crucial to use any supplement that impacts liver function with caution. Regular monitoring through liver function tests might be necessary if you choose to use milk thistle.
If you have concerns about using milk thistle, your healthcare provider might suggest alternative methods to support your liver health that are safer and better suited to your specific needs.
As for the Fenbendazole dosage, it is recommended to take it once daily according to your body weight. If the dose calculator recommends 444mg per day for your situation, you do not need to split this dose into multiple parts.
Can you take Fenbendazole while taking Carbidopa and Levodopa Tablets for Parkinson’s?
Hello Pam,
Fenbendazole is generally considered safe and well-tolerated for human use. There is a lack of established research or evidence on interactions between fenbendazole and anti-Parkinson medications like carbidopa and levodopa. Given this, while all medications can have side effects, particularly when their interactions are not thoroughly studied, it’s crucial to proceed with caution. If you choose to use fenbendazole alongside carbidopa and levodopa, we recommend closely monitoring your overall health and undergoing regular blood tests to ensure no adverse interactions occur.
Is it safe to take fenbendazole and acetaminophen together or does it cause liver problems such as necrosis?
Dear Belinda,
Combining fenbendazole with acetaminophen requires careful consideration, particularly concerning liver health. While acetaminophen is generally safe when used as recommended, it is known to cause liver damage at excessive doses and is one of the most common causes of drug-related liver failure globally.
The interaction between fenbendazole and acetaminophen, particularly in terms of liver health, is not well-documented. Without extensive studies, it’s challenging to predict how these two drugs might interact or whether they could exacerbate liver stress or damage. Given that both drugs are metabolized in the liver, introducing fenbendazole into a regimen that includes acetaminophen could theoretically heighten the risk of liver issues, such as hepatotoxicity or even necrosis, if not closely monitored.
If you choose to use both medications, closely monitoring liver function with regular blood tests is crucial, especially if there are pre-existing liver conditions or if either drug is used frequently or at high dosages.
Be vigilant for signs of liver distress, including fatigue, pain in the upper abdomen, dark urine, or jaundice. Should any of these symptoms occur, seek medical assistance promptly.
In summary, although there is no conclusive evidence that combining fenbendazole with acetaminophen will certainly cause severe liver problems, the absence of detailed interaction studies and the established risks associated with acetaminophen necessitate a cautious approach.
what is the dose (and for how many days) of fenben for a human adult for parasites? I am thinking it would be closer to the milligram per kilogram weight of dog for example. so for example if a 40 lb dog gets 4 grams of panacur c would a human weighing 150lbs then take 15 grams? for 3 days?
Dear Sanford,
Please utilize our dose calculator to find the information you need. It will answer all your questions and guide you in determining the right dosage.
Access the calculator by clicking on this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Would fenbendazole interact or be problematic with husband’s abiraterone + dexamethasone for advanced stage 4 prostate cancer? Thank you very much.
Hello Barbara,
Fenbendazole is generally well-tolerated and considered safe, but there are no clinical studies on its interactions with abiraterone or dexamethasone. The effects of combining these drugs—whether antagonistic, synergistic, or neutral—have not been explored.
Both abiraterone and fenbendazole undergo metabolism in the liver, and using them together could potentially increase the risk of liver toxicity or impact the effectiveness of either or both medications.
Given this, if your husband decides to proceed with this combination, it might be beneficial to also consider liver-supportive supplements like milk thistle, which can help maintain liver function.
However, without solid research or clinical trials, it’s challenging to assess the safety and efficacy of combining fenbendazole with standard cancer treatments like abiraterone and dexamethasone. Unanticipated side effects or interactions could occur.
Therefore, it’s crucial to closely monitor your husband’s overall health and conduct regular blood tests to detect any potential issues early.
Any idea if FenBen will help with lipomas? I have a friend with dozens of small lipomas that are causing discomfort and need to go away.
Hello Rick,
Treatment of lipomas using fenbendazole is not commonly practiced or extensively researched, making it difficult to assess its effectiveness for this purpose. Common treatments for lipomas typically include surgical removal, liposuction, or steroid injections.
Since lipomas are benign tumors, anticancer treatments are generally not appropriate. These treatments are designed to target and kill cancerous cells, which are absent in benign lipomas.
It’s crucial to monitor any changes in a lipoma, such as growth or pain. If such changes occur, a healthcare provider should evaluate the lipoma. Sometimes, a biopsy may be necessary to confirm that the growth is indeed a lipoma and not a more serious condition like liposarcoma, a rare but malignant tumor that can resemble a lipoma.
Sorry I forgot to say Oscar has chronic kidney disease and over active thyroid, his current medication in addition to the panacur is
Prednisalone 5mg daily
Claveseptin 50mg – 1.5 tablets twice a day
Thyronorm 4.5ml twice daily
I have been treating my cat Oscar (6.2kg) with Panacur paste for the past month and can see improvements in his overall health. I just tried to reorder the panacur paste but the online vet service refused the order because they cannot prescribe for anything other than parasites. Your calculator says Oscar needs 444mg of fenbendazole per day, but how does that equate to the paste? the paste is 5gm and I usually split this into 3 doses for him, is this right? or would I be better to buy the powder and weigh the dosage. Is the powder the same concentration as the paste? sorry but I am getting confused and dont want to overdose my beautiful cat. Plus it may be easier to source the powder if the vet sites are restricting how much I can purchase. Any help would be appreciated. many thanks.
Hello O’Mara,
Administer 4.44 g of Panacur paste to your cat, corresponding to 444 mg of fenbendazole. It is best given with or after a meal.
If obtaining the prescribed dosage of Panacur from your vet for Oscar proves challenging, consider using pure fenbendazole instead. This alternative simplifies dosing and typically doesn’t require a prescription, which may ease the process for you.
When it comes to the drug’s concentration, the amount needed to achieve the necessary dose of fenbendazole might differ between paste and powder forms. Both forms contain the same concentration, but the volume required could vary.
Fenbendazole powder is a pure form of the medication, generally additive-free, and often includes a dosing spoon, making it convenient for administration.
Regarding drug interactions, fenbendazole is generally safe and well-tolerated. No significant adverse interactions have been documented with Prednisolone, Clavaseptin, or Thyronorm. However, as both Clavaseptin and fenbendazole are metabolized by the liver, it’s important to closely monitor Oscar’s liver function.
It is also crucial to keep an eye out for any signs of adverse effects or changes in Oscar’s health condition. Regular blood tests may be necessary to track his liver function, thyroid levels, and other vital health indicators.
I hope this information will be useful to you.
What is the CBD oil for? Pain, infection, immune system, sleep!
Hello Joel,
CBD is known for its potential therapeutic benefits, including pain relief, reduction of anxiety and inflammation, and possibly aiding in the management of symptoms in various disorders. It is generally well-tolerated.
Hi – I am helping a friend with lung cancer that has gone to the brain and is refusing standard treatment. What would be the appropriate frequency of taking febendazole since he is currently drinking and want to recommend what makes the most sense. I ask because I see it as every day, only 6 days or only 3 days/week. Any insight appreciated!
Dear Linda,
We recommend using our dose calculator. It will help you determine the correct dosage for your friend based on their body weight and will also guide you on the frequency of use. This calculator can provide all the answers to your questions regarding the dosage and administration schedule.
Access the calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
I have Panacur equine paste 10% 100mg, trying to prevent a recurrence of colon cancer. What is the proper amount in simple measure for me , ‘
Dear Judy,
We recommend using our dose calculator to determine the appropriate Fenbendazole dosage based on your body weight. Be sure to select the “Cancer Prevention Protocol” in the “Protocol” section.
You can access the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
To achieve a dose of 222 mg of fenbendazole, you will need 2.22 grams of Panacur horse paste. Similarly, for a dose of 444 mg of fenbendazole, you will require 4.44 grams of Panacur horse paste.
Should I take fenbendazole with a meal or before or after? I will be taking Panacur 222mg. Thank you.
Dear James,
We recommend taking Fenbendazole with or after a meal to enhance its absorption.
Has Fenbendazole been used or trialed for an antiviral medication in humans,
Hello Pete,
As of now, Fenbendazole has not been officially used or trialed as an antiviral medication in humans.
While there has been interest in the potential repurposing of many existing medications, including antiparasitics, for various diseases, including viral infections, there is no substantial evidence or clinical trials to suggest that Fenbendazole has been tested or used for antiviral treatment in humans. Its action mechanism and pharmacological profile do not typically align with the properties needed to combat viruses.
Please can you post the preventive protocol for all those who have a family with cancer?
Hello Joy,
Utilize our dose calculator to determine the appropriate Fenbendazole dosage for each family member. In the “Protocol” section of the calculator, select “Cancer Prevention Protocol.” This will calculate the correct dose based on individual body weights. You can access the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Hi, I have purchased the paste (dog) I’m 77kg how much should I take or what is the ratio for taking paste.
Hello Alana,
We suggest using our dose calculator to accurately determine the required dose of Fenbendazole based on your body weight and the specific treatment you need. You can access the dose calculator by clicking on this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Based on typical dosing, you may need 222mg of Fenbendazole, which equates to 2.22 grams of Panacur paste.
Does Fenbendazole work for bone cancer? My husband used Fenbendazole to get rid of prostate cancer a few years back he was stage 4 prostate. He now has bone cancer in numerous places in his body He started taking it again at 455mg a day and protocol. I would appreciate any information. Thank you. Donna
Dear Donna,
Fenbendazole is considered for use in treating various types of cancer, including bone cancer, although its effectiveness can vary widely based on several factors. These include your husband’s overall health, how his body reacts to the medication, how the cancer responds to treatment, and his immune system’s status. It is difficult to predict whether Fenbendazole will be effective in your husband specific case.
If you decide to continue with Fenbendazole treatment, it is crucial to ensure that your husband feels well and that his blood counts remain within normal ranges. We send our best wishes and hope that the treatment proves beneficial.
Is Fenbendazole effective for blood cancer? (Chronic myeloid leukemia)
Hello Abby,
Fenbendazole is considered for treating a variety of cancers, including blood cancers, although its effectiveness can vary significantly. This variation depends on factors such as the patient’s overall health, the body’s reaction to the medication, the cancer’s response to treatment, and the patient’s immune system status. Predicting the effectiveness of Fenbendazole in any specific case is challenging.
If you decide to start treatment with fenbendazole, it is crucial to monitor your health closely and ensure that your blood counts remain within normal ranges.
Hello,
I see the dosages (fenben) for cancer and parasites. Please, what is the dosage for Hemorrhagic fever for 95 LBS and 165 LBS? For instance 222mg or 444mg once a day for 5 days, etc. Thank you so much.
Dear John,
Regarding hemorrhagic fevers caused by viruses like Ebola, Dengue, and Yellow Fever, there is no scientific backing or clinical research to support the effectiveness of Fenbendazole against these or any other viruses. Fenbendazole operates through mechanisms that are not designed to target viral replication or alleviate symptoms of viral infections.
Given the lack of evidence for its antiviral properties, using Fenbendazole to treat hemorrhagic fevers would be considered experimental.
If you choose to use Fenbendazole, follow the Parasite Protocol. Both individuals, whether they weigh 95 pounds or 165 pounds, would take the same dose of 222 mg of fenbendazole daily for five consecutive days. This standard dosage is part of the Parasite Protocol and is designed to be effective across a range of body weights. The regimen may need to be repeated after three weeks to ensure effectiveness.
I have long haul covid. I still cough especially when I bend over. I also have fluid on my heart from covid that didn’t respond to colchicine. I’m thinking of taking fenbendazole. I have purchased some already. Have you had any comments on people that have taken it for covid 19? Any suggestions would be appreciated. Thank you.
Dear Debbie,
Unfortunately, there is no scientific evidence or clinical research indicating that Fenbendazole is effective in treating or preventing COVID-19 in humans.
How do you know it’s working? Do you see the parasites in your excrement?
Hello Jen,
Thanks for your question. The presence of parasites in the stool does not necessarily indicate the effectiveness of the treatment. After taking Fenbendazole, it is possible, although not guaranteed, that you might see parasites in your stool. Larger worms like roundworms or tapeworms may be visible, while smaller parasites or their microscopic eggs may not be. In cases of heavy infestation, you are more likely to see dead or expelled parasites. The digestive process can also break down the parasites, making them less recognizable. Even in mild infections where you do not see parasites, the treatment can still be effective, as Fenbendazole is a reliable and approved anti-parasitic medication.
Regarding the effectiveness of Fenbendazole in cancer treatment, its success can be monitored through procedures such as biomarker hormone tests, PET scans, CT scans, MRI, biopsy, colonoscopy, and endoscopy.
Hello, thank you for this site. I have Leukemia and was wondering if this will work on blood cancers like leukemia or does it only work on cancerous tumors?
thank you
Dear Linda,
Some preclinical studies and reports suggest that Fenbendazole may have anti-cancer effects, including potential activity against leukemia.
Fenbendazole works by inhibiting microtubule formation, disrupting cell division, similar to chemotherapy drugs like taxanes and vinca alkaloids. It also interferes with glucose uptake and metabolism in cancer cells, starving them of the energy needed for growth.
There is some evidence suggesting Fenbendazole may enhance the immune system’s ability to fight cancer cells.
However, the effectiveness of this treatment depends on various factors, including the patient’s overall health and the cancer’s response to the treatment.
Fenbendazole, like any medication, can have potential side effects and risks. It is crucial for the patient to undergo regular blood tests and closely monitor their overall well-being.
We are using are using Safe-guard Suspension 10% (100 mg/mL) for my husband’s Kidney Cancer. How many mL should he take? He weights 180 pounds. Your site suggest 222mg but I don’t know how to convert that. Your help is greatly appreciated.
Hello Kelly,
To obtain 222 mg of fenbendazole for your husband, he will need to take 2.22 mL of Safe-guard Suspension 10%. This specific suspension has a concentration of 100 mg/mL, so administering 2.22 mL will provide the required dosage of 222 mg of fenbendazole.
What is the human dosage if using safeguard for dogs?
Hello Christy,
Please use our dose calculator to determine the appropriate dose of Fenbendazole based on your body weight. You can access the dose calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you have any further questions, we will be happy to assist you.
I took the correct amount of FenBen for 5 days to get rid of parasites and have no idea if it even did anything. From what I read on your website I am supposed to wait three entire weeks before starting another round? If I take it for more than 5 days in a row will it damage my liver? And how can I tell if it is truly killing parasites without dissecting my poop?
Hello Frank,
Please follow the dosing schedule and dosage set by our calculator. It is not necessary to use the drug more frequently or for a longer duration than indicated, as Fenbendazole is a reliable and proven antiparasitic medication.
The presence of parasites in the stool does not necessarily indicate the effectiveness of the treatment. After taking Fenbendazole, you may or may not see parasites in your stool. Larger worms such as roundworms or tapeworms may be visible, while smaller parasites or their microscopic eggs might not be. Even in mild infections where you can not see the parasites, the treatment can still be effective.
Therefore, please continue the treatment according to the protocol. Following the prescribed schedule is essential for the treatment to be effective and to avoid any potential harm to your liver or body.
Hello, I am treating my dog with fenben because he has a cancerous mast cell tumor. My vet told me there is other info on this site for what he should take in conjunction with the fenben. I am not sure if she is referring to the curcumin and the CBD oil that is listed under the Joe Tipp’s Protocol but if so, would the dosage be as listed on the site? Or does it vary depending on weight? My dog is 14.6 lbs. he is taking 222mg of fenben for 4 days and then 3 days off. Please let me know about the dosage for the curcumin and CBT oil or if there is something else he should be taking. Thanks!
Hello Kim,
You have chosen the right Fenbendazole schedule for your dog. Regarding CBD and Curcumin doses, small dogs (under 15 lbs) should start with 2-4 mg of CBD. Begin with the lower dose range and observe your dog’s response, gradually increasing the dose if necessary. Administer CBD once or twice a day.
For curcumin, the dosage for small dogs (under 15 pounds) is 150-300 mg. Curcumin can be given once or twice a day and is often more effective when administered with a fatty meal to improve absorption.
Monitor your dog for any adverse reactions, such as gastrointestinal disturbances. If side effects occur, reduce the dose or discontinue use.
Ensure you are using high-quality pet products, as human supplements may contain ingredients harmful to pets.
You can view the other supplements we recommend for use with Fenbendazole by clicking on this link:
https://www.fenbendazole.org/fenbendazole-information/supplements/
My dosage calculator says 444mg instead of 222mg.
Does that mean I double my dose to 444mg with the 3 days on schedule, the rest off?
Just want to make sure I follow it correctly.
All instructions are for the 222mg.
Thank you.
Dear James,
Please use our dose calculator, which you can find here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
The dosage depends on your weight and the purpose of the treatment. When entering your data into the calculator, ensure you correctly select the section “Fenbendazole for” and, if your treatment purpose is cancer, choose the appropriate option in the “Protocol” section. If you have any questions, please don’t hesitate to contact us.
Does fenbendazole interfere with antiseizure medication? Please let me know ASAP! Thank you!
Dear Janet,
Although few studies explore interactions between fenbendazole and anticonvulsants, existing information suggests fenbendazole is generally well-tolerated and seldom interacts with other drugs. In veterinary medicine, it is safely used in animals taking anticonvulsants, indicating a low risk of harmful interactions.
Fenbendazole is metabolized in the liver via the cytochrome P450 enzyme system, which also processes many anticonvulsants like phenytoin, carbamazepine, and valproate. This overlap could potentially lead to interactions that affect the metabolism, effectiveness, or side effects of one or both drugs.
As long as your liver enzymes (AST and ALT) are not elevated, you can take fenbendazole with your medication. Regular blood tests, liver enzyme monitoring, and close observation of your general condition are recommended.
Hi, have you maybe come across interactions between fenbendazole and prednisolone? My cat, she has lymphoma, she’s been on prednisolone for a long time now and it was working so-so. About a week ago I started giving her fenbendazole (~50mg/kg daily) and now it feels like prednisolone is not working as good as before, it looks like it works for a couple of hours and then it stops, like it was metabolized/flushed from the system a whole lot quicker. I asked my veterinarian about it, but she doesn’t have experience with long term fenbendazole usage, she said that sometimes the body gets used to prednisolone and it doesn’t work as good as before and there’s nothing we can do about it. Maybe that’s actually the case, but due to the time correlation I just wanted to explore other possibilities.
Dear Marta,
Fenbendazole and prednisolone, used in different medical contexts, have limited information on their direct interaction. Although there’s no significant evidence of specific harm from their combination, caution is warranted. Both drugs undergo liver metabolism, which could theoretically lead to interactions altering their effectiveness or increasing the risk of adverse effects. This could explain any changes in your cat’s response to prednisolone.
Monitoring your cat’s liver function and other vital parameters is advisable to promptly detect any adverse interactions. Additionally, closely watching for increased side effects or changes in drug effectiveness is crucial. If you notice a decrease in response to prednisolone, consulting your veterinarian about potential dose adjustments for either drug is recommended.
Should FBZ have a salty taste?
Hello Dave, thank you for your question.
Fenbendazole (FBZ) itself is not typically associated with a salty taste.
However, the taste of fenbendazole preparations can vary depending on the formulation and any additional flavorings or additives included by the manufacturer. Some animals may find certain formulations more palatable than others, but the taste is not generally described as salty.
If you or someone you know has experienced a salty taste while taking fenbendazole, it could be due to specific formulation or other factors.
Hello, I am trying to gauge how much powder to take for a parasite cleanse. i way about 150 lb. The powder came with a really small spoon but no directions. Can you help me?
Hello Anissa,
To rid your body of parasites, you will require a daily intake of 222 mg of fenbendazole. Administer fenbendazole once daily for five consecutive days. You might need to repeat the treatment after another three weeks.
The dosage of the powder depends on the supplier you obtained fenbendazole from. Without knowing the manufacturer you have selected, we cannot provide an exact dosage. Verify the dosage on the powder package; if it is 222 mg, one scoop daily should suffice.
I just purchased Fenben lab 222mg caps for deworming myself. Can i use this capsule to deworm my dog? She is 55lbs. Please provide mg and how many days of treatment required. Thanks so much!
Dear Tanis,
A 55lb dog will require 1247mg of Fenbendazole per day for parasite cleansing. Administer Fenbendazole once daily for five consecutive days.
For more detailed information and dosing guidelines tailored to your pet’s specifics, you can access the following link and input your pet’s details:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you have any further questions, feel free to reach out. We are here to assist and provide answers.
Hi,
My Father had Stage 2A colon cancer and had surgery to remove the entire colon. Doctors suggested no further treatment is required as there is no lymph node involvement. Besides accidently while doing upper endoscopy they found Neuroendocrine tumour which Grade 1 and non malignant. So they told us the regular follow up is enough and no need for surgery as it is very slow growing and non malignant as well. So in order to prevent colon cancer to relapse and also to shrink the NET tumour from further progressing. I want to give him Joe’s Protocol with 3 days Fenben tablet along with curcumin, milk thistle and cbd oil for 10 weeks and take a 10 weeks break for another set of fenben 3 days for 10 weeks. can i keep doing this for next few years, will it be fine? otherwise, My Father is a non smoker and has good fitness and leads healthy lifestyle
Dear Pavithra,
You are absolutely right about the fenbendazole cancer prevention schedule. Your father can take 1 capsule three times a week, once a day after a fatty meal. He should then take a four-day break from fenbendazole. Repeat this cycle for 10 weeks, followed by a 10-week break. Continue repeating this cycle for several years, until you are sure the cancer is completely gone.
My wife has nodules on your thyroid. Had a biopsy non-cancerous. Can fenbendazole treatment help shrinking the nodules? Thanks
Hello Brian,
There has been growing interest in the potential use of Fenbendazole as an anticancer agent, driven by scientific reports and early studies suggesting it might have anticancer properties. However, its effectiveness in treating thyroid nodules, which can be benign or malignant, is not well-documented. Such use would be experimental. If your wife decides to use Fenbendazole for thyroid nodules, it is crucial to monitor her overall well-being and have regular blood tests to ensure the treatment is proceeding safely.
Is there a difference in Manufacturing techniques/purity since the product is originally for animal consumption?
For clarity, are certain human consumption protocols NOT followed because animals can tolerate certain types of manufacturing process’ that make production cheaper?
Hello Chris,
Thank you for your question. Fenbendazole, in all its forms, is generally considered safe and is widely, though unofficially, used for human treatment. The animal-formulated drug does contain an additional additive. The inactive ingredients, such as lactose monohydrate, povidone, magnesium stearate, corn starch, silicon dioxide, and artificial flavorings, are generally deemed safe for humans in the amounts typically used in medications.
If you are concerned about these additives, we suggest reviewing the list of reliable suppliers we offer. You can choose pure fenbendazole without any additives.
The list of suppliers can be found here: https://www.fenbendazole.org/suppliers/
Hello,
My client has a Neuroendocrine cancer that had metastasized to the liver. She did’t go for chemotherapy, started 20 day fasting and started taking fenben. Is it OK to take it during fasting? she takes a little coconut oil with it for better absorption.
Thank you for your time
Hello Maya, thank you for your question.
First of all, we would like to emphasize that fasting requires significant physical effort, and we do not recommend it. Fenbendazole is absorbed into the bloodstream through the gastrointestinal tract. Fasting can suppress metabolism, reduce the effectiveness of fenbendazole, and place a substantial burden on the liver.
To support liver function, we recommend incorporating Milk Thistle into the treatment protocol. Milk Thistle can help improve liver health and function.
Additionally, it is important to closely monitor the patient’s condition. Regular blood tests, including liver enzyme tests, should be conducted as frequently as possible. This will help ensure that any potential issues are detected early and managed effectively, minimizing the risk of adverse effects.
Is there any research Fenbendazole is effective against Chronic Lymphocytic Leukemia?
Hello John,
Currently, there are limited direct studies on the effectiveness of fenbendazole in treating chronic lymphocytic leukemia (CLL). However, research has shown that fenbendazole possesses anticancer properties in various studies involving different types of cancer. These studies demonstrate that fenbendazole can inhibit cancer cell growth, reduce metastasis, and promote cancer cell death through several mechanisms.
One key mechanism involves disrupting microtubule formation, which is crucial for cell division and structural integrity. By interfering with microtubules, fenbendazole can effectively halt the proliferation of cancer cells. Additionally, fenbendazole has been shown to interfere with cellular glucose uptake, depriving cancer cells of the energy needed for their rapid growth and survival.
These mechanisms highlight fenbendazole’s potential as a broad-spectrum anticancer agent. Despite these promising findings, the application of fenbendazole specifically to CLL has not been extensively studied. Most of the existing research focuses on other types of cancer, and the evidence is primarily preclinical.
When I take Fenben, I have to pee a lot! Like several times a night. What is causing that?
Hello Lee,
Increased urination while taking fenbendazole can be concerning and may be due to several reasons. Some drugs have a diuretic effect, increasing urine production, and while fenbendazole is not typically known for this, individual reactions can vary. Rarely, fenbendazole may cause metabolic changes that lead to increased urination, possibly involving the kidneys processing the drug and its metabolites more rapidly. It can also stimulate detoxification in the liver and kidneys, leading to more frequent urination as the body removes waste and toxins. Additionally, some people might unintentionally drink more fluids to aid medication absorption or due to a sensation of dryness.
Increased urination could also be unrelated to fenbendazole, potentially indicating an underlying condition like a urinary tract infection, diabetes, or a kidney issue. If this symptom is bothersome or persists, it is important to consult with a healthcare provider to rule out serious conditions and ensure the safe use of fenbendazole. They can offer a personalized assessment and suggest ways to manage this side effect.
How long I have to take fenben
Hello Sukhpreet,
The duration of fenbendazole use can vary based on the condition being treated and individual circumstances.
For cancer treatment, it is generally recommended to take one capsule (222 mg or 444 mg) of fenbendazole three times a week, followed by a four-day break. This cycle is typically repeated for 10 weeks, followed by a 10-week break. This cycle may be repeated for several years until there is evidence that the cancer has disappeared.
For cancer prevention, the same protocol is used: one capsule three times a week, with a four-day break each week. This cycle is continuous.
For treating parasitic infections in animals, fenbendazole is usually given for 3-5 days, but this duration is not directly applicable when used off-label for other conditions.
In summary, fenbendazole is a long-term treatment and should be used until there is assurance of complete health. Regular check-ups, blood tests, and medical evaluations are recommended if using fenbendazole for an extended period.
Hi
My wife has been diagnosed with terminal lung cancer post having bowel surgery to remove a tumour then diagnosed with liver cancer which was decreasing with natural therapies until the lung cancer appeared.
Since then she has been using a measure of 1.5 teaspoon of panacur liquid for most of the past 6 weeks with the occasion break with some improvements being able to lay flat to sleep able to speak longer sentences. Last bloods CEA show 5.8 and all organs functional.
Coughing following by vomiting happens after evening meals at times and a feeling of suffocating occurs. But does the protocol less the CBD oil.
I have not found fenbendazole capsules in Australia and need to know what the liquid quantity measure is if you could please?
Thanks Roger
Dear Roger,
You can try purchasing fenbendazole capsules through Amazon, which should be available in Australia. Additionally, we suggest exploring our list of trusted suppliers to choose the best option for your wife. You can find the list here:https://www.fenbendazole.org/suppliers/
As for the dosage, we cannot give an exact answer without knowing your wife’s weight. You can determine the correct dose based on her body weight using our dose calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If your wife needs 222 mg of fenbendazole, she will need 2.22 ml of Panacur liquid. For 444 mg of fenbendazole, she will need 4.44 ml of Panacur liquid.
I hope this helps clarify the dosage. If you have any further questions, feel free to contact us and we will try to assist.
Regarding CBD oil, if you think it is making your wife feel unwell, consider cutting the dose in half or stopping its use for a few weeks to see if the symptoms improve.
I have the 444mg capsules. How do I do deworming (100 lb human) with these?
Thanks
Hello Nancy,
For your body weight, you need to take 222 mg of fenbendazole once a day for 5 consecutive days. The treatment may need to be repeated after three weeks. You can find all the information regarding the dosing and administration schedule here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Simply enter your body weight and select who the fenbendazole is for. The dose calculator will provide you with the exact dosage and schedule.
If you have 444 mg capsules, you will need to split them in half to get the required 222 mg dose.
Can we buy fenbendazole in Amsterdam, The netherlands, Europe?
Hello Julia,
Fenbendazole can be purchased on Amazon and is typically available in most countries worldwide. Additionally, we recommend exploring the reliable suppliers we suggest. This information can help you make an informed decision when selecting the right Fenbendazole supplier and deciding on the preferred form of the drug, whether it be capsules, powder, or liquid.
You can find the list of suppliers here: https://www.fenbendazole.org/suppliers/
Thank you your informative website. I live in Australia and can’t buy Fenbendazole here. Instead, we have Menbendazole sold over the counter for parasites. Will Mendendazole work the same way for cancer?
Thank you and kind regards,
Annette Chen
Dear Annette,
You can buy Fenbendazole through Amazon, and it is available in Australia. If you decide to use Mebendazole, that is also a valid choice. Both mebendazole and fenbendazole are anthelmintic drugs with potential in cancer treatment, though they work slightly differently and have varying levels of evidence supporting their use.
Ultimately, the decision between mebendazole and fenbendazole may depend on factors such as the specific type of cancer, the patient’s overall health, and the clinical trials or studies backing their use.
I have melanoma. It is located on my ear. I’ve been reading that Medendazole or Flubendazole might be a better treatment? Or do you think the Fenbendazole works just as well? I am thankful for any advice you can give me.
Dear Keith,
When considering treatments for melanoma, three benzimidazole derivatives—flubendazole, mebendazole, and fenbendazole—have shown potential anti-cancer properties:
– Fenbendazole: Disrupts microtubule polymerization, induces apoptosis, and inhibits cancer cell viability and migration, with multiple anti-cancer mechanisms; popular due to low cost and safety but lacks extensive human clinical trials.
– Mebendazole: Approved for human use, extensively studied, inhibits cancer growth especially in brain, prostate, and ovarian cancers, effectively penetrates the blood-brain barrier.
– Flubendazole: Similar to mebendazole and fenbendazole, disrupts microtubule function, induces cancer cell death, potentially effective against some cancers but less studied.
Overall, mebendazole has the most clinical support, while fenbendazole is favored for affordability and safety despite less formal research.
Does anyone know if glucose is restricted on the Fenben protocol. I haven’t seen it mentioned anywhere. Currently my husband is unhappily off sugar.
Dear Pamela,
Yes, a low-sugar diet is generally recommended while taking fenbendazole for cancer treatment. This is based on the idea that cancer cells often take up more glucose than normal cells. By reducing sugar intake, you can limit the energy supply to cancer cells, potentially enhancing the effectiveness of the treatment. Cancer cells thrive on glucose for energy, so reducing sugar can help starve them and slow their growth. Additionally, a low-sugar diet can improve overall health by reducing the risk of obesity, diabetes, and other metabolic disorders.
If your husband loves sweets and finds it difficult to give them up, consider using sugar substitutes such as stevia, honey, maple syrup, or fruit. Also, remember to monitor all sources of sugar in his diet, including hidden sugars in processed foods.
Can a person taking Warfrin (blood thinners) safely take Fenbendazole
Dear Marie,
Although Fenbendazole is generally safe and often used with other medications, combining it with Warfarin should be done with caution due to potential interactions that may affect blood clotting. Warfarin’s effectiveness can be influenced by various drugs, and there is limited information on its interaction with Fenbendazole.
If you decide to use these two medications together, we recommend monitoring your International Normalized Ratio (INR) levels more frequently to ensure your blood remains within the desired clotting range.
Additionally, be alert for signs of unusual bleeding or bruising, which could indicate improper blood clotting. If you experience these symptoms, you may need to adjust your Warfarin dosage based on your INR levels.
any experience for fenbenzadole on cancer bone lesions
Hi. My Australian Shepherd, PISTOL, who is 12.5 years of age and weighs about 56 pounds has liver cancer. Can she take Fenbendazole and if so how much and how often? She just had surgery for laryngeal paralysis in April of 2023 and doing ok, however, the CT found liver cancer (4 inches x 3 inches). This is what I read so concerned with her having liver cancer: USE CAUTION WHEN ADMINISTERING THIS DRUG TO PETS WITH LIVER DISEASE. The recommended maintenance dose for dogs is 400 mg. To allow the liver to regenerate, three days on and four days off is recommended. If the treatment produces a response and causes tumors to diminish, you can continue with it continuously. The medication is fully safe for all dogs, with just minor precautions required for dogs with liver illness. Even yet, because of its decreased toxicity, Fenbendazole is likely to be far safer than chemotherapy.” PLEASE ADVISE AND THANK YOU VERY MUCH. PISTOL’S MOM
Dear Sherry,
Your information is correct. We can only advise you on the optimal dosage and administration schedule for Pistol to avoid additional strain on his liver. We recommend giving him 666 mg of Fenbendazole once a day for four consecutive days. Then, do not administer Fenbendazole for the next three days. Repeat this cycle weekly. Additionally, closely monitor Pistol’s general health with regular blood tests and liver enzyme levels.
You can also give Pistol milk thistle to support his liver health. Milk thistle contains silymarin, known for its antioxidant and anti-inflammatory properties, which can help protect and repair the liver. The typical dosage of milk thistle for dogs is about 1-2 mg per kilogram of body weight, given once or twice a day.
Are there any testimonials and/or studies as to the efficacy of Fenbendazole for CLL (chronic lymphocitic leukemia)?
Dear Charles,
Currently, there are only a few scientific studies or clinical trials that directly support the effectiveness of fenbendazole in treating chronic lymphocytic leukemia (CLL). Most of the available information comes from reports and personal testimonials from individuals who have included fenbendazole as part of their cancer treatment regimen. Despite its unofficial status, many patients have reported positive outcomes, noting significant improvements while using fenbendazole.
These testimonials often highlight encouraging results, such as reduced tumor size and improved overall health. However, it is important to note that fenbendazole is primarily an antiparasitic medication for animals, which means there is limited official data and clinical research on its use in humans.
My husband has two small tumors on his liver. Will this help him?
Hello Belinda,
Fenbendazole is widely used to treat various types of cancer, including liver cancer. If your husband’s tumors are small and in the early stages, Fenbendazole is more likely to be effective. However, we cannot predict exactly how his tumors will respond to the treatment. The effectiveness of Fenbendazole depends on many factors, such as your husband’s overall health, immune system, body’s response to treatment, and the stage and aggressiveness of the cancer.
We also recommend taking Milk Thistle along with Fenbendazole to help protect your husband’s liver. Be sure to regularly monitor his overall health and check his liver enzyme levels to avoid any additional strain on his liver.
I would like to know what form would you recommend for cleansing the human body powder or tablet at what dosage level
Dear Maggie,
Fenbendazole is available as a liquid, powder, or capsule. You can choose the most convenient form for you. We recommend that you view our recommended list of trusted suppliers, which can be found here:
https://www.fenbendazole.org/suppliers/
To determine the correct dose, simply enter your body weight into the dose calculator and select “Parasites” under “Fenbendazole for”. The calculator will then determine the best dose and schedule for you. You can find the dose calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you have any further questions, please feel free to contact us. We will be happy to help you.
My husband has BRCA1 gene and prostate cancer. We had surgery in 2019, radiation in 2021 and now PSA is going up. We found Joe Tippins story a few months ago and are beginning the protocol. Has anyone with the BRCA1 gene seen success ~ we are so hopeful and excited as the chemistry of how this works makes sense. Thanks for giving cancer patients hope.
Dear Beth,
The use of fenbendazole in cancer treatment, including prostate cancer, is an area of growing interest. While numerous reports and some preclinical studies suggest that fenbendazole may have anticancer properties, its efficacy, especially in individuals with a BRCA1 gene mutation, is not yet sufficiently supported by clinical trials.
Many individuals have reported positive results using fenbendazole as part of their cancer treatment regimen. These personal testimonials indicate improvements in symptoms, quality of life, and in some cases, tumor shrinkage.
Some preclinical studies in prostate cancer have shown that fenbendazole can inhibit cancer cell growth and promote apoptosis (cell death). Additionally, fenbendazole may have anti-inflammatory and immunomodulatory effects that could enhance the body’s ability to fight cancer.
Regular monitoring of health, including liver enzyme levels and overall well-being, is essential when using fenbendazole.
Does fenbendazole interfere with CT scans or pose a danger in combination with contrast dye? How long before a CT scan should one stop taking it?
Dear Cheryl,
We recommend discontinuing fenbendazole 24-48 hours prior to your CT scan. This is because fenbendazole is typically eliminated from the body within one to two days after cessation. It is important to stop taking it because contrast agents, such as dyes or radioactive glucose, are often used during tomography. Cancer cells consume significantly more glucose than normal cells, so these contrast agents highlight areas of cancer activity in the resulting images. However, fenbendazole inhibits glycolysis and slows down cancer metabolism, which can lead to inaccurate imaging results. This could cause the images to misrepresent the actual state of the cancer.
How do you measure 222 mg from the Panacur C packets
Hello Teresa,
Panacur C comes in various concentrations. For example, a 1 gram (1000 mg) packet typically contains 222 mg of active fenbendazole. To measure 222 mg from Panacur C packets, first determine the packet’s concentration. For a 1 gram packet, use the entire packet. If a packet contains 444 mg of fenbendazole in 2 grams of powder, use half the packet to get 222 mg.
What if a patient cannot tolerate it by mouth? What are other ways to administer this medication? She is super nauseous and can’t keep anything down. Tumors wrapping around her small intestine. Wondering about absorption issues…
Hello Christie,
If a patient cannot tolerate fenbendazole orally, alternative administration methods include rectal suppositories, topical formulations, feeding tube delivery, injectable forms, and compounded formulations such as liquids or gels.
fenben used in conjuction with cemo
Dear Richard,
We recommend stopping fenbendazole two days before, during, and two days after chemotherapy.
This precaution helps to reduce the extra load on the body and liver during this period. Stopping medication during chemotherapy sessions can reduce the risk of adverse interactions and give your body a better chance of coping with the stress of treatment. However, it is important to note that this is a general recommendation, and the final decision should be made by you based on your specific circumstances and treatment plan.
Hello:
When doing a Fenbendazole protocol, are there any contra-indicators for also using Chagga mushrooms or other strong anti-oxidents? I suppose the real question might be, is Fenbendazole an anti-oxident?
Thank you
Hello Bob,
Fenbendazole is not classified as an antioxidant. However, antioxidants such as chaga mushrooms are well-known for their ability to neutralize free radicals and reduce oxidative stress in the body. These antioxidants can support overall health and potentially enhance the effectiveness of other treatments by mitigating oxidative damage.
Although fenbendazole does not function as an antioxidant, combining it with chaga mushrooms or other antioxidants is generally considered safe. There are no well-documented contraindications or adverse interactions between fenbendazole and chaga mushrooms or other antioxidants.
As with any combination of supplements and medications, it is important to monitor for any adverse effects. Regularly checking your health and undergoing blood tests can help ensure that everything remains within normal ranges and that no unexpected issues arise. By staying vigilant and informed, you can safely benefit from the combined use of these treatments.
It the capsul or powder from better?
Dear Ray,
The effectiveness of fenbendazole is not dependent on its form, whether liquid, powder, or capsules. You can choose the form that is most convenient for your dosing needs and the most cost-effective for you.
Thank you for this amazing resource. Iam most grateful.
Also, is there any reactions if Fenbendazole is taken with a course of Methylene Blue or if there’s any contraindications for both to be taken together ?
Thank you in advance for your help.
Best regards
Dear Pash,
Although no specific evidence indicates direct contraindications between fenbendazole and methylene blue, caution is advised due to potential hepatic metabolic interactions. Both drugs are metabolized in the liver, potentially altering blood levels of one or both drugs. Methylene blue can inhibit monoamine oxidase (MAO), affecting the metabolism of similar drugs. Concurrent use may increase the risk of hepatotoxicity or other side effects. Regular monitoring of liver function and overall health is recommended when taking these medications together.
Hello,
I wanted to know if there is credible research on other uses in humans as well?
Thank you
Hello Sherry,
Research into the potential use of fenbendazole in humans, especially for cancer treatment, is ongoing and has shown promising results in preclinical studies. Fenbendazole has demonstrated significant anti-cancer properties across various cancer types. For instance, it has been effective in inhibiting the growth of prostate cancer cells by disrupting the formation of microtubules and causing cell cycle arrest. Similar outcomes have been observed in pancreatic cancer studies, where fenbendazole slowed tumor growth in animal models.
The drug works by disrupting the structure of cancer cells, akin to its effect on parasites. It collapses cellular microtubules, which are crucial for cell division and nutrient transport, effectively inducing cell death and reducing tumor size in several types of cancer cells in vitro.
Some studies have explored the synergistic effects of fenbendazole when combined with other cancer treatments. For example, enhanced anticancer effects were observed when fenbendazole was used alongside traditional chemotherapy agents like paclitaxel.
Although there are reports and small-scale studies showing positive results in cancer patients using fenbendazole, extensive clinical trials are still needed to establish its efficacy in humans. Many individuals have shared stories of complete recovery from cancer using fenbendazole, but these cases often go undocumented because they are self-administered without medical supervision and are not part of formal studies.
Hello,
What is the purpose or reason for the CBD oil? Will not using it have a negative effect on the protocol? I work in transportation and popping positive on a random will ruin my career. No one will care why or what I was doing. It’s just the way things are when the federal government is involved in your work.
Hello Joel,
CBD is not a mandatory part of the protocol, and its absence will not significantly affect the effectiveness of the treatment. The primary drug in the protocol is fenbendazole, while the other supplements are only recommended.
In some countries, CBD (cannabidiol) is completely banned, regardless of its source or THC content. If you are in Russia, the United Arab Emirates, Saudi Arabia, Malaysia, Indonesia, or Singapore, do not use CBD as it is illegal. If you live or work in other countries, it is crucial to research and understand the specific regulations regarding CBD in those countries. This will help you avoid legal issues and ensure compliance with local laws.
What can it and can’t it kill in the human body as it pertains to parasites. I have a son with Eosinophilic Esophagitis. I am hoping the he is one of the cases that are related to parasites.
Dear Amber,
Fenbendazole works by disrupting microtubule formation in parasitic cells, which is essential for their survival and reproduction. In humans, it can kill parasitic worms such as roundworms (Ascaris), hookworms, whipworms (Trichuris), and tapeworms. Emerging research suggests potential anticancer properties, showing it may interfere with cancer cell growth and reproduction. However, fenbendazole cannot kill bacteria, viruses, fungi, or protozoa. There is no strong evidence or medical recommendation for using fenbendazole to treat eosinophilic esophagitis (EoE), which is usually treated with diet, PPIs, topical steroids, and elimination diets.
Hi have colorectal cancer that has been absent from colon for 3 years via Cymo and surgery. However it spread to liver 2 years ago.
CT Oblation surgery has held it but now appears I’m running out of options.
I have read heaps about dog and horse wormers having some good results. I have horses and dogs and can get access to both from the feed store.
I struggle to get some direction on dosage and period of treatment times.
I’m only 57 and wish to see some grandkids, please advise your dosage rates, 🙏 would be much appreciated .
Dear Michael,
Use our dose calculator to choose the right dose and schedule based on your body weight. If you have any difficulties with dose calculations, we are here to help you. You can find the dosage calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Given that the cancer has spread to the liver, fenbendazole should be used with caution. We recommend that you constantly monitor your general health and check your liver enzymes as often as possible.
Does it work to clear the Candida albicans ?
Hello Luljete,
There is no substantial evidence or medical consensus to suggest that fenbendazole is effective in treating Candida albicans, a type of fungal infection.
Candida albicans infections, commonly known as candidiasis, are typically treated with antifungal medications such as fluconazole, itraconazole, or nystatin. If you suspect a Candida infection, it is important to consult with a healthcare professional for proper diagnosis and treatment. Self-medicating with fenbendazole for this purpose is not advisable and could delay effective treatment.
My husband is on Eliquis(blood thinner) and it seems all supplements suggested he can’t take suck as milk thistle, tudca, curcumin etc. Is there a supplement he could take with the fenben to help with his liver? Thank you
Dear Elizabeth,
When taking Eliquis (apixaban), it is important to be cautious with supplements due to potential interactions. Many supplements, such as milk thistle, TUDCA, and curcumin, can increase bleeding risk or reduce the effectiveness of the drug. For safer liver support, consider the following options: N-Acetylcysteine (NAC), which increases glutathione levels; S-Adenosylmethionine (SAMe), known for supporting liver health; Alpha-Lipoic Acid (ALA), an antioxidant aiding in detoxification; probiotics, which improve gut health and indirectly benefit the liver; and dietary adjustments, emphasizing fruits, vegetables, whole grains, and lean proteins. Regular blood tests are essential to monitor for any adverse interactions or effects on liver function while using these supplements with Eliquis.
Are there particular types of cancer that have more success with Fenbendazole? Are there types of cancer that are less likely to respond to this treatment protocol? Where can I find data/info/preprints on this? Thank you so much for making this information available! What a blessing in a world gone mad, with some even feeling it is right and just to repress “misinformation”-you know, ie: tomorrow’s innovations and discoveries…..
Hello Corrine,
Fenbendazole is extensively used in treating various types of cancer, and most patients experience a positive response to the treatment. However, there is no definitive scientific evidence indicating which types of cancer may respond better or worse to fenbendazole. Cancer is a complex disease with numerous subtypes, and treatment responses can vary due to several factors, including cancer type and stage, genetic makeup, general health, and other individual characteristics.
You can find interesting treatment cases by clicking on this link: https://www.fenbendazole.org/category/case-reports/
You may also find these documents and clinical trials interesting: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-papers-and-clinical-trials/
Thank you so much for the info . I live in Brazil and we only have Fenbendazol 18% , is that percentage the same as in the US .
Dear Jose,
Yes, the percentage of Fenbendazole (18%) refers to the concentration of the active ingredient in the formulation, which is consistent regardless of the country. An 18% Fenbendazole formulation means that 18% of the total weight of the product is Fenbendazole.
For dosing, you will need to adjust according to the concentration. For example, if you need a dose of 222mg of Fenbendazole and you have an 18% formulation, you can calculate the total amount of the product required to get the desired dose.
You would need approximately 1233mg of the 18% Fenbendazole product to get a 222mg dose of the active ingredient.
Hi I have had a skin cancer (squema cell) removed once a year for the last 3 years. My question is which protocol would I follow? I haven’t been diagnosed with cancer by an Oncologist, however I have had my dermatologist surgically remove skin cancer via biopsies.
Which Protocol to follow?
•always cancer free
Or
•prevent relapse
ThankYou,
Shannon Waters
Dear Shannon,
We recommend using our dose calculator. Select “Cancer” under “Fenbendazole for” and choose “Cancer prevention protocol” under “Protocol.” Enter your body weight as well. The calculator will provide the appropriate dose and schedule for cancer prevention, which is: Take fenbendazole once daily for 3 consecutive days (Monday-Wednesday), then take a break for the remaining days (Thursday-Sunday). Repeat this cycle every week.
You can access all this information in our dose calculator: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
My brother has been diagnosed with bladder cancer, he had 10 Infusions (the max they give in Ireland) it has spread to the kidneys and lung, can he take fenbendazole, and can panacure contain enough, or do I use only fenbendazole,
Hello Martin,
There is considerable evidence and some preliminary research suggesting that fenbendazole has anticancer properties. However, while fenbendazole may be beneficial for your brother, it should be part of a comprehensive treatment plan to ensure his best possible care and safety.
Panacur is the brand name for fenbendazole, containing the active ingredient fenbendazole. The concentration and formulation can vary, so it is important to check the dosage. You can find the correct dose and schedule for your brother by following this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
If you are using Panacur, be sure to adjust the dose accordingly to match the amount of fenbendazole.
Regular blood tests and medical examinations are necessary to monitor the effectiveness of the treatment and any possible side effects.
Are there any contra-indications with fenbendazole – like for high blood pressure meds/blood thinners?
Hello Vernon,
Although fenbendazole is usually safe and well-tolerated, there is a rare risk of increased side effects when combined with blood thinners. To reduce this risk, it is important to have regular blood tests to monitor blood clotting and liver function, ensuring both medications are safe to use together.
Watch for unusual symptoms such as increased bleeding, bruising, or signs of liver problems (like jaundice or dark urine). Adhere strictly to the prescribed dosing schedule for all medications and avoid making any changes to the dosage on your own.
Hello,
I have metastasized melanoma, mainly in my liver. ASAT and ALAT figures were way up.
At this moment I use protein blockers which seem to keep it under control (asat/alat normal since 2 months).
Is it advisable to take fenbendazole in my case (as the liver has to work hard).
I use several natural products; THC oil, wormwood, amla, msm, lineseed, nigella sativa.
Can they still be used in combination?
Thanks in advance,
Henk
Hello Henk, thank you for your question.
Fenbendazole is generally safe and well-tolerated. However, since it is metabolized in the liver, it may stress an already compromised liver. Although your AST and ALT levels have returned to normal, indicating stable liver function, caution is still necessary.
Regularly monitor your liver enzymes and other key markers to ensure your liver stays healthy. The supplements you are currently using seem generally safe and are unlikely to cause side effects when combined with fenbendazole.
Additionally, consider adding Milk Thistle to your regimen to help maintain liver health and protect against elevated liver enzymes.
what about breast cancer
Dear Barbara,
Fenbendazole is extensively utilized in the treatment of various cancers, including multiple forms of breast cancer. Its application has shown promising results and has been embraced by many as a complementary approach to traditional cancer therapies.
For those interested in learning more, several breast cancer treatment case reports are available that highlight the experiences and outcomes of patients who have used fenbendazole in their cancer treatment regimen. You can find these insightful stories and detailed reports here:
https://www.fenbendazole.org/triple-negative-breast-cancer/
https://www.fenbendazole.org/case-report-metastatic-breast-cancer-83-female-2/
These cases provide valuable information on how fenbendazole has been integrated into cancer care, offering hope and potential guidance for others facing similar health challenges.
Can a dog taking Fenbenzadole for cancer also take Simperica trio?
Hello Carolyn,
Yes, fenbendazole is often used to treat cancer in dogs. Use the link below to calculate the correct dosage and schedule.
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Regarding the combination of Simparica Trio and fenbendazole, there are generally no known adverse interactions. However, it is important to be cautious when giving multiple medications to your pet. Monitor your dog for any unusual symptoms or side effects when starting a new medication, such as gastrointestinal upset, behavioral changes, or signs of an allergic reaction.
Ensure each drug is administered in the correct doses and at the appropriate times to reduce the risk of potential side effects and interactions. Regular veterinary check-ups are essential to monitor your dog’s health and the effectiveness of the treatment. Blood tests and other diagnostic measures can help ensure your dog stays healthy while on these medications.
Can you take digestive enzymes while taking Fenben? My son (17) will begin a protocol for Lyme (and any co-infections) soon. It calls for FenBen 5 days out of 30. He has trouble absorbing food and has a “slow gut”. He’s been taking digestive enzymes and they’ve helped him immensely. I’d prefer to keep him on those as he goes through the protocol. Just wanting to make sure they won’t affect the potency or effectiveness of the Fenben. Thanks!
Dear Heather,
Yes, your son can take digestive enzymes while using fenbendazole. There are no known negative interactions between these two substances.
My wife, Corinna, has been diagnosed with Stage III Pancreatic Cancer. She has undergone chemotherapy and had a “whipple” procedure to remove the tumor. At this point she is “cancer free” according to her latest scan, but we have been warned about this cancer’s high recurrence rate. We are looking for a prophelactic protocol to assist with the possible recurrence, but I am concerned about the impact these substances may have given my wife’s compromised gastrointestinal system (no gall bladder, no bile duct, reduced liver, pancreas, stomach and small intestine). Are you aware of any information that may be helpful in this regard? Thank you for your assistance.
Hello Pete,
Given your wife’s complex medical history and multiple gastrointestinal surgeries, including the Whipple procedure, caution is essential when considering any new treatment, including fenbendazole.
Due to her gastrointestinal condition, it is crucial to carefully monitor for any possible side effects. While fenbendazole is generally considered safe, its effects on individuals with extensive medical histories are less clear. Watch for any signs of gastrointestinal distress or other adverse reactions.
We recommend using a dosage calculator to determine the correct dose and schedule. This tool can help ensure she takes the appropriate amount for her condition.
You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Regular medical check-ups are vital to monitor her overall health and detect any early signs of cancer recurrence or other complications.
In addition to fenbendazole, a holistic approach to health, including a balanced diet, regular exercise, and other supportive treatments, may be beneficial. Consult a nutritionist or specialist to ensure her diet supports her compromised digestive system.
How much dosage to take for a 5 foot female weighing 145 lbs diagnosed with triple negative and aggressive breast cancer? Pleas help!
Hello Jose,
A woman of the specified weight with breast cancer should take 222 mg of Fenbendazole per day, 6 days a week, with or after food.
You can find this and other useful information using our dose calculator:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
I’ve always heard to also take a binder (I would take activated charcoal) with anti parasite medication. Is this true for Fenbendazole? Thank you
Hello Cheryl, thanks for the great question!
It is sometimes recommended to use a binding agent, such as activated charcoal, alongside antiparasitic medications to help bind and remove toxins released as parasites die. However, this practice is not universally required or advised for all antiparasitic treatments, including fenbendazole. Activated charcoal is known to bind many substances, including medications, and can reduce their effectiveness. Taking activated charcoal with fenbendazole may interfere with the absorption and effectiveness of fenbendazole. If you decide to use activated charcoal, consider taking it at a different time than fenbendazole to minimize the potential for interactions.
Hi where can I find a standard cancer protocol for fenbendazole or MEBENDAZOLE on your website ? Do let me know. Thank you.
Hello Pash,
The fenbendazole protocol can be found by clicking on this link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
You will need to enter your body weight and select the purpose for which you will use the drug: cancer treatment, anti-cancer use, or parasite treatment. The calculator will help you determine the correct fenbendazole dose and schedule. You will also be able to view Joe Tipp’s standard protocols at the bottom of the calculator.
hello I have a lot of food sensitivity so what do you mean by take with a fatty meal, and will fruit work
Dear Austin,
The absorption of fenbendazole can be significantly increased when taken with food, especially with fat. Fenbendazole is a lipophilic compound, meaning it is more easily absorbed into the bloodstream with dietary fat. Taking it with a fatty meal improves its bioavailability, ensuring more of the drug is absorbed, making it more effective.
If you cannot eat fatty foods, consider other options to improve absorption, such as healthy fats like avocado, nuts and seeds, olive oil, or nut butter. Combining fenbendazole with protein-rich foods, such as eggs, lean meats, dairy products (if tolerated), or legumes, can also help. You can mix these ingredients into a smoothie for easier consumption, such as one with avocado, nuts or seeds, and protein powder.
We hope this information is useful to you.
Fenbendazole help treat acute myelogenous leukemia? Or blood cancer?
Dear Corazon,
Fenbendazole can be effective in treating various types of cancer, including blood cancers. However, its effectiveness varies greatly among individuals and depends on several factors, such as the patient’s overall health, immune system, cancer response to treatment, and the stage or aggressiveness of the cancer. In many cases, fenbendazole can significantly slow down the disease’s progression or even halt the cancer entirely.
I want protocol of fenben for osteosarcoma case metastatic to lung
Age 18 years old
Weight 80
Previous treatment Chemo
But now nexavar and I want to know if there is any interaction between nexavar and fenbendazole
Hello Tamer,
There is no specific information on the interaction between Nexavar (sorafenib) and fenbendazole. However, both drugs are metabolized in the liver, which means that taking them together may increase the risk of liver toxicity or other side effects. When using these drugs together, regular monitoring of liver function and general health is recommended.
Your body weight requires 222 mg of Fenbendazole per day, 6 days per week. Make sure you are taking the correct dose and following the correct schedule. We also recommend adding Milk Thistle to your protocol to help support your liver. You can check the schedule and dosage using our dosage calculator below:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
I have the Safeguard liquid from Merck. What is the dosage for 150 lbs? TYVM
Jean
Dear Jean,
For your body weight, you need to take 222 mg of Fenbendazole per day. To determine the amount of Safeguard liquid needed to achieve this dose, you need to know the concentration of fenbendazole in the liquid. Safeguard liquid from Merck typically contains 10% fenbendazole, meaning 1 ml has 100 mg of fenbendazole. Therefore, to get a 222 mg dose, you would need to drink 2.22 ml of Safeguard liquid.
On your dosage calculator I noticed that there is a huge difference between treating a cat and a dog. I want to try and treat my cat for cancer using Panacure C. My cat weighs almost 15 pounds and your calculator recommends 444mgs, but for a dog that same 444mg dosage doesn’t start until 34 pounds which is more than double the weight of the recommended cat dosage. Is this correct?
Dear Tom,
Your point is correct, and it is important to understand that dosage recommendations can vary greatly between species due to their unique metabolic and physiological differences.
The recommended dose for a 15-pound cat is 444 mg of fenbendazole. On the other hand, for a dog of the same weight (15 pounds), the dose is 222 mg. These differences are due to the way cats and dogs metabolize and respond to medications differently.
Although this may seem confusing, it is encouraging that these recommendations are made to ensure the safety and effectiveness of treatment for each specific animal.
If you have more questions or need additional help, please do not hesitate to ask!
Any idea as to how much to give to a 85 lb. dog potentially to treat tumors?
Hello Jeff,
For a dog of the specified weight, the recommended dosage is 444 mg of Fenbendazole per day. Administer this dosage once daily for four consecutive days. After this, do not give Fenbendazole for the following three days. This cycle should be repeated every week.
You can find all this information and more using our dose calculator:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
I have stage 3 breast cancer. Should I go thru chemotherapy first? I just discovered this.
Dear Debbie,
When it comes to making decisions about treatment options, it is important to consider all available information and choose what feels best for you. While we can not make this decision for you, it is empowering to know that each patient can select the treatment method that suits them best.
Chemotherapy is a well-established treatment with proven effectiveness. However, some patients are exploring off-label treatments like fenbendazole and have found promising results.
Ultimately, the choice is yours, and we encourage you to discuss all options with your healthcare provider to make an informed decision that aligns with your needs and preferences.
looking for info about fenbendazole and its treatment of bladder cancer
Dear William,
Thank you for your question regarding fenbendazole and its potential treatment for bladder cancer. Fenbendazole is being explored for its anti-cancer properties and has shown promise in preclinical studies.
The mechanism of action for fenbendazole involves disrupting microtubule function, which is essential for cell division and growth. By interfering with these processes, fenbendazole can inhibit the growth and proliferation of cancer cells. Additionally, it can inhibit glucose uptake in cancer cells, effectively starving them of the energy needed to grow and multiply.
There have been many success stories from patients using fenbendazole to treat various types of cancer, including bladder cancer. Some patients have reported reductions in tumor size and improvements in their condition while using fenbendazole as part of their treatment regimen.
You can find one such case report here: https://www.fenbendazole.org/case-report-bladder-cancer/
If you are considering fenbendazole for bladder cancer, it is important to follow a consistent protocol and regularly monitor your health and progress.
Dosage 220lb male? Is the dosage weight dependant?
Hello John,
A person of the specified weight should take 444 mg of fenbendazole per day with or after a meal. The dosage depends on body weight, and the treatment schedule depends on the purpose of the treatment. Therefore, we recommend using our dosage calculator to determine the exact dose and schedule of fenbendazole. You can find the dose calculator here: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Can you Curcumin if you are on blood thinners? I think there is an issue with Turmeric and blood thinners. I want my dad to do the protocol but I know he is currently on Eliquis
Hello Sandy,
Curcumin, found in turmeric, has blood-thinning properties that might interact with blood thinners like Eliquis (apixaban). Combining them could increase the risk of bleeding. If considering adding curcumin to the regimen, it is crucial to monitor your dad’s health closely, including regular blood tests, to check for any adverse effects. This careful monitoring will help ensure that any potential issues are detected early.
Is fenbendazole effective in treating MDS?
Hello Sarah,
Thank you for your question regarding the use of fenbendazole for treating Myelodysplastic Syndromes (MDS). Fenbendazole is being researched for its potential anti-cancer properties, but its effectiveness in treating MDS specifically is not well-documented. This would be considered an experimental treatment, as we currently do not have substantial information or clinical studies confirming its efficacy for MDS.
Fenbendazole works by disrupting microtubule function and inhibiting glucose uptake in cancer cells, which may have beneficial effects. However, since MDS involves poorly formed or dysfunctional blood cells, it is uncertain how fenbendazole might affect this condition.
If you are considering fenbendazole as a treatment option for MDS, it is crucial to do so under careful monitoring. Regular health checks and blood tests are essential to ensure safety and to gauge any potential benefits.
Please weigh the potential risks and benefits, and consider all available treatment options.
Does the Fenben protocol work for multiple myeloma cancer?
Dear Mimi,
Fenbendazole is being explored for its anti-cancer properties, and it may offer benefits for multiple myeloma.
Fenbendazole disrupts microtubule functions essential for cell division and growth, which can hinder the proliferation of cancer cells. Additionally, it can block glucose uptake in cancer cells, depriving them of the energy needed to grow and multiply.
Although there are no definitive studies specifically targeting multiple myeloma, the mechanisms by which fenbendazole acts on cancer cells suggest it could be beneficial for this disease. Following a consistent protocol and monitoring your health regularly is crucial if you decide to incorporate fenbendazole into your treatment regimen.
Many patients have shared positive experiences using fenbendazole for different types of cancer. You might find it helpful to read about a case report of a patient with stage 4 melanoma who experienced significant improvements: https://www.fenbendazole.org/melanoma-stage-4/
What is the interaction of the CBD oil, is it necessary and why take it at night?
Dear Bill,
CBD serves as an additional component to the protocol, offering its own benefits rather than being the primary medication.
CBD oil can have a calming or sedative effect on some individuals, which can help improve sleep quality. Therefore, taking it at night can be advantageous for those who experience relaxation and better sleep from CBD. Quality rest is crucial, especially for a body fighting a serious illness like cancer.
We also want to emphasize the importance of regularly monitoring liver enzymes and overall health when using fenbendazole and other supplements.
Can you take fenbendazole with iverbradine?
Dear Kim,
The combination of fenbendazole and ivabradine has not been extensively studied. While there’s no specific evidence of harmful interactions between the two, it is always wise to be cautious when combining medications. The effects of each drug on the body can be complex, and their interactions might lead to unexpected side effects.
If you are considering taking fenbendazole with ivabradine, it is crucial to monitor your health closely. Regular blood tests and vigilance for any unusual symptoms are important to ensure your well-being.
I’ve heard mebendazole is better than febendazole? Is this true? Thank you.
Hello,
Both medications belong to the benzimidazole group. Mebendazole is typically prescribed for humans, while fenbendazole is mainly used in veterinary medicine. However, there is growing interest in fenbendazole for its potential anti-cancer properties. Some studies suggest it can disrupt cancer cell growth, reduce their glucose uptake, and boost the immune response against cancer cells.
Determining which medication might be more effective for your specific condition is challenging, as it depends on many factors, including the type and stage of the disease, your overall health, and how your body responds to treatment. The choice of treatment is ultimately up to you, and it is important to consider all available information to understand the potential benefits and risks.
Can it be taken with oral chemo Xeloda?
Dear Barbara,
It is generally advised not to take fenbendazole two days before, during, and two days after chemotherapy. This caution helps to prevent potential drug interactions and reduce any additional stress on your body during treatment. Since Xeloda is typically taken twice daily for 14 days followed by a 7-day break, this schedule only allows for three days of fenbendazole use. Unfortunately, this brief duration is unlikely to provide significant therapeutic benefits.
If you choose to use fenbendazole during your chemotherapy cycles, it is crucial to monitor your health very closely. Regular blood tests are necessary to ensure there are no adverse interactions and to maintain your overall health. Ultimately, the decision is yours, and it is important to carefully consider the potential benefits and risks.
Is the 444 mg capsule fenbenzadole more effective, and how does the protocol change with the higher dose?
Hello Steven,
The appropriate dose of fenbendazole is based on your body weight. Taking a higher dose than necessary for your weight does not increase the effectiveness of the treatment. In fact, it could lead to unnecessary strain on your body, particularly your liver, which is responsible for metabolizing the medication.
Using a dose calculator is essential to determine the correct amount of fenbendazole you should take. This calculator considers your body weight and provides a precise dosage and schedule that optimizes the treatment’s effectiveness while minimizing potential side effects. Adhering to the calculated dose ensures that you receive the maximum benefit from the treatment without overburdening your system.
If you consume a dose higher than what is recommended for your weight, you might not achieve better results. Instead, you could experience adverse effects that can be avoided by following the tailored dosage plan. Therefore, it is crucial to use our dose calculator to get a personalized treatment plan and stick to the calculated schedule and dose.
By following the appropriate dosage based on your body weight, you can ensure a balanced approach that maximizes the therapeutic benefits of fenbendazole while maintaining your overall health and safety.
You can find the dosage calculator here:
https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
Thank you for sharing your knowledge. As a healthy person, I’m interested in using Fenben as a parasite cleanse. Would I use the same protocol you outline in cancer prevention? I have the packets I purchased from a pet supply company. Also, I’d like to give it to my cat – about 10 pounds, could you recommend how much/how often/how long?
Much appreciated.🙏🏻
Dear Ria,
For the best and safest results, we recommend using our dose calculator, which you can find at the following link: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
This tool will help you determine the appropriate dosage based on your specific needs.
For your cat, who weighs about 10 pounds, the dose calculator will also provide guidance on the correct dosage and administration schedule. It is crucial to follow these recommendations to ensure the safety and effectiveness of the treatment.
I have stage 4 rcc with Mets to femur tibia lung adrenal gland. I have one kidney and my creantine levels is always good. I had 5 cycles of immunetherapy with little success. Is fenben 222 daily ok to take. And does tumeric taken to help liver detox
Dear David,
Depending on the complexity of the disease and favorable creatinine results, you can use a daily dose of 222 mg of fenbendazole. However, regular blood tests are necessary, particularly to monitor markers of kidney function such as creatinine, and to ensure that liver enzymes remain within safe limits.
Turmeric, which contains curcumin, and milk thistle are recognized for their ability to support liver health. Curcumin’s antioxidant properties can help alleviate oxidative stress in the liver, and its anti-inflammatory effects can reduce inflammation, thereby supporting overall liver function and detoxification processes. Rich in silymarin, milk thistle has been shown to promote liver cell regeneration and improve the liver’s ability to process toxins.
Adding these natural supplements to your wellness regimen can complement your ongoing treatment strategy.
Hello
Will 220 mg dosage help my pet dog with bone cancer? All the posts here and everywhere just refer to human use.
Thanks so much for any reply.
Hello Brent,
You are correct that Fenbendazole is primarily used for cancer treatment in humans but has also demonstrated effectiveness in dogs. The appropriate dosage for your pet depends on its weight, making accurate calculation essential. To determine the correct dosage and schedule tailored to your dog’s needs, we recommend using our dosage calculator. Here is the link to access it: https://www.fenbendazole.org/fenbendazole-information/fenbendazole-dosage-guide/
I currently take tagrisso… how will it be affected if I add fenbendazole
Hello David,
Thank you for your question about using fenbendazole with Tagrisso (osimertinib).
There is limited scientific data on their interaction, but here are some important considerations:
Both drugs can affect liver function, increasing the risk of liver toxicity. Regular blood tests are essential to monitor liver enzymes.
Be alert for new or worsening side effects. Tagrisso can cause diarrhea, rash, and interstitial lung disease, while fenbendazole may cause gastrointestinal discomfort and liver enzyme changes.
Watch for cumulative toxicity, especially overlapping side effects on the liver and gastrointestinal tract.
If you decide to add fenbendazole, start with a lower dose and gradually increase it to monitor for adverse reactions.
Consider using liver-protective supplements like milk thistle.
Combining these treatments requires caution and close monitoring. If you have tolerated Tagrisso well, fenbendazole should be added gradually and with careful monitoring of your body’s responses.
I am doing the dog dewormer for prostate cancer. PSA has gone down. Has anyone else have good success or info on this ?
Are there other benefits from that fenbendazole? Anti-cancer benefits are enough but I was wondering if it is helpful in treatment of hypertension or diabetes.
Hello Janna,
Fenbendazole has recently garnered interest for its potential benefits beyond its anti-parasitic properties, particularly in cancer treatment. However, its efficacy and safety in treating conditions like hypertension or diabetes have not been extensively studied or established in human clinical trials.
The mechanisms by which fenbendazole might exert anti-cancer effects, such as disrupting microtubule formation and interfering with glucose uptake in cancer cells, are distinct from the mechanisms involved in managing hypertension or diabetes. Therefore, while fenbendazole shows promise in certain areas of oncology, its potential for treating other medical conditions would require rigorous scientific investigation to confirm any beneficial effects.
I have tablets from FenBen.
Are they taken on an empty stomach or with food. The mice study seems to indicate with food.
Hello Gail,
Regardless of the supplier or formulation, fenbendazole should be administered with or after food to optimize its absorption.
Is there any information on the use of Fenbendazole while pregnant?
Hello Osman,
The use of Fenbendazole during pregnancy is not recommended due to limited safety data and potential risks to the developing fetus. Conducting studies on medication safety during pregnancy involves ethical and practical challenges, making it difficult to gather comprehensive data. Therefore, healthcare providers typically advise against using Fenbendazole while pregnant to avoid potential harm to both the mother and the unborn child.
What can I expect from taking this? Will it remove worms and parasites in me? Will I see them? What can i look forward to?
Hello,
Thank you for your question. When taking fenbendazole, you can expect it to work on a variety of levels. Originally developed as an anti-parasitic medication for animals, fenbendazole effectively targets and eliminates worms and parasites by disrupting their cellular processes. If you have parasitic infections, fenbendazole can help remove these organisms from your body. You may notice these organisms being expelled from your body, particularly in your stool. This might be visible in some cases, but not always, depending on the type and size of the parasites.
In addition to its anti-parasitic properties, some evidence and studies suggest that fenbendazole may also help in inhibiting cancer cell growth. Patients have reported positive outcomes, especially when used as part of a broader treatment protocol. As your body responds to fenbendazole, you might experience “die-off” symptoms (also known as a Herxheimer reaction) if you have a significant parasitic load or cancer cell death. These symptoms can include flu-like feelings such as body aches, chills, and nausea. These reactions are generally temporary and indicate that the treatment is working.
It is important to monitor your health and well-being closely while taking fenbendazole. Regular blood tests to check liver function (ALT, AST, and bilirubin levels) will help ensure the treatment is well tolerated. Supplementing with silymarin (milk thistle) can support liver health and help mitigate any potential liver stress from the treatment.
You can look forward to improved health and well-being as parasitic infections are cleared, and potentially a reduction in cancer cell growth if you are using fenbendazole as part of a cancer treatment protocol. Relief from symptoms caused by parasites or cancer is also a possibility.
can you take fenbendazole during radiotherapy and chemo tablets at the same time
Hello Karen,
Thank you for your question. When considering the use of fenbendazole during radiotherapy and chemotherapy, it is generally recommended to stop taking fenbendazole two days before, during, and two days after your chemotherapy or radiotherapy sessions.
The reason for this recommendation is to minimize potential interactions between fenbendazole and your cancer treatments. Chemotherapy and radiotherapy are powerful treatments designed to target and kill cancer cells, but they can also stress your body and liver. Fenbendazole is metabolized by the liver, and taking it concurrently with these treatments could potentially increase the strain on your liver and interfere with the efficacy of your chemotherapy or radiotherapy.
By pausing fenbendazole use around the time of your treatments, you allow your body to process and recover from the chemotherapy or radiotherapy without additional stress. This approach helps ensure that your primary cancer treatments are as effective as possible while minimizing potential side effects.
Has this protocol been tried with metastatic renal cell carcinoma? I’m currently on 40mg cabometyx daily and a monthly opdivo infusion
Hello Jeremy,
Thank you for your inquiry. Fenbendazole is commonly utilized for treating various types of cancer, including metastatic renal cell carcinoma. You might find it insightful to review this case study available at https://www.fenbendazole.org/renal-cell-carcinoma/.
Predicting how Fenbendazole will specifically impact your condition is challenging due to the variability in treatment response influenced by factors such as cancer aggressiveness, individual response to therapy, immune system function, and overall health.
As of now, there are no reported interactions between Fenbendazole, Cabometyx, and Opdivo. Nonetheless, if you opt to use these three medications concurrently, it is prudent to exercise caution and maintain regular monitoring of your health, including periodic checks of liver enzymes and overall blood parameters.
Additionally, you may wish to consider incorporating Milk Thistle into your treatment regimen as it supports liver health.
Should fenbendazole be stopped prior to having a PET scan so the results of the scan are not skewed? If yes how long before the scan should it be stopped?
Hello Judy,
Yes, we recommend stopping fenbendazole 2 days before the PET scan to ensure the results are not skewed. This precaution helps to ensure the most accurate imaging results.
Can Fenbendazole cause your liver, angles and feet to swell? could this be a side effect?
If so what should be done? Dose taken is 1 in the morning and 1 in the evening with a
fatty meal with no breaks. Been diagnosed with stage 4 liver cancer.
Hello. Liver cancer itself can lead to symptoms such as liver enlargement (hepatomegaly) and fluid accumulation in the abdomen (ascites), which may contribute to swelling in the ankles and feet. It is important to make pauses in your fenbendazole protocol, so that liver has time to restore. Meantime you should still be taking milk thistle for your liver. We would suggest to take a break for at least 4-7 days.
Hi Guys,
My beautiful 4 year French bulldog has been diagnosed with large cell lymphoma cancer stage 3. We just got the biopsy and the vet said because of how aggressive this cancer is, he has asked us to prepare for the worst in 3 weeks. The current symptom was pneumonia where he has short breaths.
We are not going to give up. I have managed to get hold of Fenbendazole +Ivermectin through
Fen-iverquantel-paste.
All I want is advice on the dosage for my dog. He is currently 13.8kgs. Your calculator says 222mg per day. Is that sufficient for stage 3 cancer as well or should I double it to 444mg?
Thanks a lot. Eagerly waiting for your response.
Dear Netesh,
Thank you for sharing your French Bulldog’s situation. We know how difficult this must be, and we admire your determination to help him.
A daily dose of around 222 mg for a 13.8 kg dog is generally suitable, but if he tolerates it well without digestive or liver issues, the dose can be increased to 444 mg for more advanced cases. Fenbendazole should be given once daily with food that contains some fat, to improve absorption.
Since our focus is specifically on fenbendazole, we cannot provide dosage guidance for ivermectin, but many owners choose to use both carefully and observe their pet’s response. We wish your dog strength and comfort as you continue his care.
Why the vit E?
Dear Barb, thank you for a great question!
Vitamin E plays a crucial role in supporting immune function. Adequate vitamin E levels are necessary for the proper functioning of immune cells, including T cells and B cells, which play essential roles in the body’s defense against infections and cancer. By supporting immune function, vitamin E may help enhance the body’s natural ability to fight cancerous cells.
Also anti-inflammatory effects: Vitamin E has anti-inflammatory properties that may help reduce inflammation in the body. Chronic inflammation has been linked to the development and progression of cancer, so reducing inflammation may help create a less favorable environment for cancer growth and metastasis.
Vitamin E may enhance the anticancer effects of fenbendazole when used together.