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  1. Laura

    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

    1. fenbendazole

      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.

  2. David S

    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.

    1. fenbendazole

      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.

      1. David S

        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.

        1. fenbendazole

          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.

  3. Jeff

    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

    1. fenbendazole

      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.

  4. Gaye Bailey

    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.

    1. fenbendazole

      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.

      1. Gaye Bailey

        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.

        1. fenbendazole

          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.

  5. Shining light

    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.

    1. fenbendazole

      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.

  6. Toby

    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.

    1. fenbendazole

      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.

  7. Jeff

    Can Fenbendazole and Methylene Blue be taken together for cancer treatment? Any other concerns by combining? Thanks in advance

    1. fenbendazole

      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.

  8. Susannah

    Can fenbendazole be used during targeted therapies, such as enhertu; herceptin, or car-t?

    1. fenbendazole

      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.

  9. Marina

    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.

    1. fenbendazole

      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.

  10. John

    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?

    1. fenbendazole

      Hello John,
      When determining the correct dosage and frequency of Fenbendazole for your body weight, please use our provided dose calculator:
      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.

  11. Michael

    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.

    1. fenbendazole

      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.

  12. Graeme Boucaut

    Should I stop taking Fenbendazole before having a MRI?

    1. fenbendazole

      Hello and thank you for a question, Graeme.
      You should stop at least 24h before MRI.

  13. Star

    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.

    1. fenbendazole

      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.

  14. Tony Talacko

    Hi My dog weighs 30 pounds. The calculator says he should get 680mg per dose, is that correct?
    Thank you,

    1. fenbendazole

      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.

  15. Kimberly

    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

    1. fenbendazole

      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.

  16. Kimberly

    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

    1. fenbendazole

      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.

      1. Minde

        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?

        1. fenbendazole

          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!

  17. Doug

    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”



    1. fenbendazole

      Hello Doug,
      Thank you for your question. Both mentioned options are suitable. Because the absorption of curcumin is increased by piperine in any form.

  18. Mark Aaron

    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?

    1. fenbendazole

      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.

  19. Deedee

    How does this work for lymphoma in dogs

  20. Dolly

    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?

    1. fenbendazole

      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.

  21. Cheryl

    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!

    1. fenbendazole

      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.

    2. William

      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.

      1. fenbendazole

        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.

  22. Eva

    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?

    1. fenbendazole

      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)

  23. Naree

    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

  24. Fil

    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

    1. fenbendazole

      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.

  25. Paul

    Has anyone taken fenben while also taking 1300mg a day of Tylenol. I must take this daily for paine.

    1. fenbendazole

      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.

  26. Sam Buck

    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

    1. fenbendazole

      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.

  27. Pam

    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.

    1. fenbendazole

      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.

  28. karen tieman

    Hi there!
    What dosage would you take if it is in liquid for (100g per litre) for parasite treatment please?

  29. Anonymous

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    1. fenbendazole

      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!

      1. Susannah

        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?

        1. fenbendazole

          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.

  30. Sue

    Can fenbendazole be taken while receiving chemotherapy? Thank you

    1. fenbendazole

      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.

  31. Peggy Demetrius

    Has this ever been used for Essential Thromblcythemia?

    1. fenbendazole

      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.

  32. Kyle Travers

    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.

    1. fenbendazole

      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.

  33. Oskar

    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?


    1. fenbendazole

      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.

  34. Becky

    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?

    1. fenbendazole

      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!

  35. Suzanne

    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

    1. fenbendazole

      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.

  36. Sherry

    My husband has read that Fenben can cause bacterial infections. Is there research somewhere where I can read about this?

    1. 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.

  37. Stevan Papic

    How safe is the usage of Fenbendazole designated for animals, in humans? Thanks

    1. fenbendazole

      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.

  38. Judith A. Walker

    Has anyone bought the Sodium Dichloroacetate talked about here on the web? I’ve been thinking of adding it to my FenBen treatment. Thanks!

  39. Amy

    Can fenbendazole help with Posterior Cortical Atrophy (PCA) or any type of Alzheimer’s or dementia?

    1. fenbendazole

      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.

  40. Naomi Khan

    Has there been success with Fenbendazole and stage 4 HS Ovarian cancer?

  41. Rob Presler

    What type of CBD oil is recommended: full spectrum, broad spectrum, or isolate?

    1. fenbendazole

      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.

  42. Becky

    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

  43. Dee

    For peacocks, how much should we add to a gallon of water?

    1. fenbendazole

      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.

  44. Carrie Venclauskas

    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

    1. fenbendazole

      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

  45. Caroline

    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!

    1. fenbendazole

      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.

  46. Shelley

    Does it have a flavour? I opened a capsule. and tasted zero flavor

    1. fenbendazole

      Hello, Shelly!
      In general, fenbendazole is not known to have a strong or distinctive taste.

      1. Julia

        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

        1. fenbendazole

          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:

  47. Tanya Grachanen

    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.

    1. fenbendazole

      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.

  48. LaRinda Leach

    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.

  49. Joan Skotleski

    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?

    1. fenbendazole

      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.

  50. Jen

    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?

    1. fenbendazole

      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%.

  51. clive white

    I have just bought a 500mg pack of Fenbendazole 45 tabs to a pack. How many should I take a day?

  52. Scott

    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 🙂

  53. Mary Wolf

    The radiation Oncologist said my husband should not take supplements while receiving radiation.

    1. fenbendazole

      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.

  54. Mary Wolf

    Can my husband use Fenbendazole while receiving radiation for pancreatic Ca?

    1. fenbendazole

      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.

  55. Tyler

    Any experiences this working for Multiple Myeloma? And is there a list of chemos this is not safe with?

    1. fenbendazole

      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.

  56. Tim Walsh

    Is there a difference between Fenbendazole and Albendazole? Can Albendazole be used in place of Fenbendazole?
    Thank you!

    1. fenbendazole

      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.

  57. Mashumichelle

    How much is too much?

    1. fenbendazole

      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.

  58. Ronald Warner

    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

    1. fenbendazole

      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.

  59. Yelena

    Can I give a treatment to my 3yo child. And how much should I give him to prevent parasites.

    1. fenbendazole

      Hello Yelena,
      Depending on your child’s age, we recommend consulting with your pediatrician, who can prescribe the appropriate anthelmintic medication.

  60. Jim Mitchell

    Will Fenbendazole with ivermectin normalize glucose levels? If so what dosage & frequency

    1. fenbendazole

      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.

  61. Rosa

    Can I take fenbendazole and begin a herbal parasite cleanse?

    1. fenbendazole

      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!

  62. Deborah

    Wondering if there are any studies or information on how fenbendazole effects the microbiome health?

    1. fenbendazole

      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.

  63. L

    Does this work in relation to breast cancer, mets to liver ? Or anywhere else in the body

  64. Mary

    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.

    1. fenbendazole

      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/

  65. Vidya

    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?

    1. fenbendazole

      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.

  66. Michelle

    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.

    1. fenbendazole

      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.

  67. Bec

    Are there any success stories or research on Fenben and autoimmune? Like Rheumatoid Arthritis?

    1. fenbendazole

      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.

  68. Connie

    what is the purpose of taking the CBD oil? Is it just for pain? Can it be left out of the protocol treatment?

    1. fenbendazole

      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.

  69. Michele Murphy

    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.

    1. fenbendazole

      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.

  70. Louis lane

    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?

    1. fenbendazole

      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:

  71. WeRColt

    Does Fenbendazole + help with Lyme Disease or tick bite illnesses?

    1. fenbendazole

      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.

  72. Patrick

    I bought it for myself. I got the 100g powder. How often should I take it?

    1. fenbendazole

      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/

  73. Beverly Ashby

    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.

    1. fenbendazole

      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.

  74. Holly

    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.

    1. fenbendazole

      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.

  75. Jim

    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?

    1. fenbendazole

      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.

  76. Melissa

    Whats the difference between the 444 and 222 Fenbendazole? Protocols and dosages? TYSM!

    1. fenbendazole

      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:

  77. Ljupcho

    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

    1. fenbendazole

      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:

  78. Anita Sanders

    Would there be any problems taking this the same time as taking Essiac Tea?

    1. fenbendazole

      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.

  79. Anne

    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???

    1. fenbendazole

      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.

  80. Irene

    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?

    1. fenbendazole

      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.

  81. Susan Rabbitt

    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?

    1. fenbendazole

      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.

  82. Karen

    Do you have any recommendations for a 59 yr old that’s been suffering with MS?

    1. fenbendazole

      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.

  83. Paula

    Does fenbendazole have any animal products in it ? I am allegic to beef. pork, lamb

    1. fenbendazole

      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/

  84. Connie Vogel

    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.

    1. fenbendazole

      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.

  85. Tracy

    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?

    1. fenbendazole

      Dear Tracy,
      You can find all the information you need by clicking on this link:
      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.

  86. Brenda Brock

    I am trying to order fenbendozole in tablets but most of the tablets spell it Phenbendozole. Is this the same pure fenbendozole?

    1. fenbendazole

      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.

  87. Willow

    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!

    1. fenbendazole

      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!

  88. Tonya

    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?

    1. fenbendazole

      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/

  89. ELISE

    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.

  90. Pam

    Would FenBen be helpful for tremors from Parkinson’s?

    1. fenbendazole

      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.

  91. Bill

    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?

    1. fenbendazole

      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.

  92. Scott Fors

    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

    1. fenbendazole

      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:

  93. Megan

    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 🙂

    1. fenbendazole

      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:
      Additionally, we encourage you to check out our list of trusted suppliers here:
      This will ensure you administer the correct dose for your dog and simplify your experience with fenbendazole.

  94. Bonnie Dolack

    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

    1. fenbendazole

      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:
      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.

  95. Tim Koster

    Are you able to take this in addition to the cancer treatments ?

    Thank you

    1. fenbendazole

      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.

  96. Alva

    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.

    1. fenbendazole

      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:

  97. Denise Carlani

    Are there any positive results on ovarian cancer and if so how long for results on fenbendazole.

    1. 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.

  98. Pat

    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.

  99. Parker

    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.

    1. fenbendazole

      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.

  100. Angie

    I was looking at taking this for suspected parasites. What mg strength and for how long do you take it.

  101. G.L.

    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?

    1. fenbendazole

      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.

  102. Kathy

    Thank you for posting this page, good information! Quick question, how to take Safe-Guard Crumbles at

    1. fenbendazole

      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.

  103. Lori

    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?

    1. fenbendazole

      Hello Lori,
      We recommend discontinuing Fenbendazole two days before, during, and two days after undergoing radiotherapy or chemotherapy.

  104. JOEL

    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!!

    1. fenbendazole

      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.

  105. Lisa Mickles

    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.

    1. fenbendazole

      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.

  106. Pam McDonald

    Can you take Fenbendazole while taking Carbidopa and Levodopa Tablets for Parkinson’s?

    1. fenbendazole

      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.

  107. Belinda

    Is it safe to take fenbendazole and acetaminophen together or does it cause liver problems such as necrosis?

    1. fenbendazole

      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.

  108. sanford

    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?

  109. Barbara

    Would fenbendazole interact or be problematic with husband’s abiraterone + dexamethasone for advanced stage 4 prostate cancer? Thank you very much.

    1. fenbendazole

      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.

  110. Rick

    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.

    1. fenbendazole

      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.

  111. Helen O'Mara

    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

  112. Helen O'Mara

    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.

    1. fenbendazole

      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.

  113. Joel McClure

    What is the CBD oil for? Pain, infection, immune system, sleep!

    1. fenbendazole

      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.

  114. Linda

    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!

    1. fenbendazole

      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:

  115. Judy Jones

    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 , ‘

    1. fenbendazole

      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.

  116. James Gill

    Should I take fenbendazole with a meal or before or after? I will be taking Panacur 222mg. Thank you.

    1. fenbendazole

      Dear James,
      We recommend taking Fenbendazole with or after a meal to enhance its absorption.

  117. Pete

    Has Fenbendazole been used or trialed for an antiviral medication in humans,

    1. fenbendazole

      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.

  118. Joy

    Please can you post the preventive protocol for all those who have a family with cancer?

    1. fenbendazole

      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/

  119. Alana

    Hi, I have purchased the paste (dog) I’m 77kg how much should I take or what is the ratio for taking paste.

    1. fenbendazole

      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.

  120. Donna Croswell

    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

    1. fenbendazole

      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.

  121. Abby Conley

    Is Fenbendazole effective for blood cancer? (Chronic myeloid leukemia)

    1. fenbendazole

      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.

  122. John Colean


    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.

    1. fenbendazole

      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.

  123. Debbie

    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.

    1. fenbendazole

      Dear Debbie,
      Unfortunately, there is no scientific evidence or clinical research indicating that Fenbendazole is effective in treating or preventing COVID-19 in humans.

  124. Jen

    How do you know it’s working? Do you see the parasites in your excrement?

    1. fenbendazole

      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.

  125. Linda

    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

    1. fenbendazole

      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.

  126. Kelly

    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.

    1. fenbendazole

      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.

  127. Christy

    What is the human dosage if using safeguard for dogs?

  128. Frank

    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?

    1. fenbendazole

      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.

  129. Kim

    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!

    1. fenbendazole

      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:

  130. James

    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.

    1. fenbendazole

      Dear James,
      Please use our dose calculator, which you can find here:
      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.

  131. Janet Dellinger

    Does fenbendazole interfere with antiseizure medication? Please let me know ASAP! Thank you!

    1. fenbendazole

      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.

  132. Marta

    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.

    1. fenbendazole

      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.

  133. Dave

    Should FBZ have a salty taste?

    1. fenbendazole

      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.

  134. Anissa

    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?

    1. fenbendazole

      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.

  135. Tanis

    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!

    1. fenbendazole

      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:
      If you have any further questions, feel free to reach out. We are here to assist and provide answers.

  136. Pavithra

    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

    1. fenbendazole

      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.

  137. Brian

    My wife has nodules on your thyroid. Had a biopsy non-cancerous. Can fenbendazole treatment help shrinking the nodules? Thanks

    1. fenbendazole

      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.

  138. Chris

    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?

    1. fenbendazole

      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/

  139. Maya

    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

    1. fenbendazole

      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.

  140. John

    Is there any research Fenbendazole is effective against Chronic Lymphocytic Leukemia?

    1. fenbendazole

      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.

  141. Lee

    When I take Fenben, I have to pee a lot! Like several times a night. What is causing that?

    1. fenbendazole

      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.

  142. Sukhpreet

    How long I have to take fenben

    1. fenbendazole

      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.

  143. Roger kosak

    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

    1. fenbendazole

      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.

  144. Nancy

    I have the 444mg capsules. How do I do deworming (100 lb human) with these?

    1. fenbendazole

      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:
      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.

  145. Julia

    Can we buy fenbendazole in Amsterdam, The netherlands, Europe?

    1. fenbendazole

      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/

  146. Annette Chen

    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

    1. fenbendazole

      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.

  147. Keith

    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.

    1. fenbendazole

      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.

  148. Pamela Angell

    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.

    1. fenbendazole

      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.

  149. Marie

    Can a person taking Warfrin (blood thinners) safely take Fenbendazole

    1. 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.

  150. tom

    any experience for fenbenzadole on cancer bone lesions

  151. SHERRY

    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

    1. fenbendazole

      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.

  152. Charles

    Are there any testimonials and/or studies as to the efficacy of Fenbendazole for CLL (chronic lymphocitic leukemia)?

    1. fenbendazole

      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.

  153. Belinda Stewart

    My husband has two small tumors on his liver. Will this help him?

    1. fenbendazole

      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.

  154. Maggie

    I would like to know what form would you recommend for cleansing the human body powder or tablet at what dosage level

    1. fenbendazole

      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:
      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:
      If you have any further questions, please feel free to contact us. We will be happy to help you.

  155. Beth Fleshman

    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.

    1. fenbendazole

      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.

  156. Cheryl E

    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?

    1. 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.

  157. teresa

    How do you measure 222 mg from the Panacur C packets

    1. fenbendazole

      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.

  158. Christie

    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…

    1. fenbendazole

      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.

  159. richard evans

    fenben used in conjuction with cemo

    1. fenbendazole

      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.

  160. Bob Wolcott

    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

    1. fenbendazole

      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.

  161. Ray

    It the capsul or powder from better?

    1. fenbendazole

      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.

  162. Pash

    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

    1. fenbendazole

      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.

  163. Sherry

    I wanted to know if there is credible research on other uses in humans as well?
    Thank you

    1. fenbendazole

      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.

  164. Joel Leland

    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.

    1. fenbendazole

      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.

  165. Amber

    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.

    1. fenbendazole

      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.

  166. Michael Glasser

    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 .

    1. fenbendazole

      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:
      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.

  167. Luljete

    Does it work to clear the Candida albicans ?

    1. fenbendazole

      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.

  168. Elizabeth

    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

    1. fenbendazole

      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.

  169. Corrine

    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…..

    1. fenbendazole

      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/

  170. Jose Oswaldo Pieruccetti

    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 .

    1. fenbendazole

      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.

  171. Shannon Waters

    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
    •prevent relapse
    Shannon Waters

    1. fenbendazole

      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/

  172. Martin Quinn

    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,

    1. 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.

  173. Vernon

    Are there any contra-indications with fenbendazole – like for high blood pressure meds/blood thinners?

    1. fenbendazole

      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.

  174. Henk

    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,


    1. fenbendazole

      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.

    1. fenbendazole

      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:
      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.

  175. Carolyn Creekmore

    Can a dog taking Fenbenzadole for cancer also take Simperica trio?

    1. fenbendazole

      Hello Carolyn,
      Yes, fenbendazole is often used to treat cancer in dogs. Use the link below to calculate the correct dosage and schedule.
      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.

  176. heather

    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!

    1. fenbendazole

      Dear Heather,
      Yes, your son can take digestive enzymes while using fenbendazole. There are no known negative interactions between these two substances.

  177. Pete

    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.

    1. fenbendazole

      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.

  178. Jose Orejel

    How much dosage to take for a 5 foot female weighing 145 lbs diagnosed with triple negative and aggressive breast cancer? Pleas help!

  179. Cheryl McDonald

    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

    1. fenbendazole

      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.

  180. Pash

    Hi where can I find a standard cancer protocol for fenbendazole or MEBENDAZOLE on your website ? Do let me know. Thank you.

    1. fenbendazole

      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.

  181. Austin

    hello I have a lot of food sensitivity so what do you mean by take with a fatty meal, and will fruit work

    1. fenbendazole

      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.

  182. Corazon A Guzon

    Fenbendazole help treat acute myelogenous leukemia? Or blood cancer?

    1. fenbendazole

      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.

  183. Tamer

    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

    1. 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:

  184. Jean Shankles

    I have the Safeguard liquid from Merck. What is the dosage for 150 lbs? TYVM

    1. fenbendazole

      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.

  185. Tom

    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?

    1. fenbendazole

      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!

  186. JeffO

    Any idea as to how much to give to a 85 lb. dog potentially to treat tumors?

    1. fenbendazole

      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:

  187. Debbie

    I have stage 3 breast cancer. Should I go thru chemotherapy first? I just discovered this.

    1. fenbendazole

      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.

  188. Wiliam

    looking for info about fenbendazole and its treatment of bladder cancer

    1. fenbendazole

      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.

  189. John

    Dosage 220lb male? Is the dosage weight dependant?

    1. fenbendazole

      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/

  190. Sandy

    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

    1. fenbendazole

      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.

  191. Sarah Young

    Is fenbendazole effective in treating MDS?

    1. fenbendazole

      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.

  192. Mimi

    Does the Fenben protocol work for multiple myeloma cancer?

    1. fenbendazole

      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/

  193. Bill Cannon

    What is the interaction of the CBD oil, is it necessary and why take it at night?

    1. fenbendazole

      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.

  194. Kim

    Can you take fenbendazole with iverbradine?

    1. fenbendazole

      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.

  195. Ak

    I’ve heard mebendazole is better than febendazole? Is this true? Thank you.

    1. fenbendazole

      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.

  196. Barbara

    Can it be taken with oral chemo Xeloda?

    1. fenbendazole

      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.

  197. Steven Geigle

    Is the 444 mg capsule fenbenzadole more effective, and how does the protocol change with the higher dose?

    1. fenbendazole

      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:

  198. Ria

    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.🙏🏻

    1. fenbendazole

      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.

  199. David

    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

    1. fenbendazole

      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.

  200. Brent

    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.

    1. fenbendazole

      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/

  201. David

    I currently take tagrisso… how will it be affected if I add fenbendazole

    1. 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 ?

  203. Janna

    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.

    1. fenbendazole

      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.

  204. gail combs

    I have tablets from FenBen.

    Are they taken on an empty stomach or with food. The mice study seems to indicate with food.

    1. fenbendazole

      Hello Gail,
      Regardless of the supplier or formulation, fenbendazole should be administered with or after food to optimize its absorption.

  205. Osman Guven

    Is there any information on the use of Fenbendazole while pregnant?

    1. fenbendazole

      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.

  206. SIF

    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?

    1. fenbendazole

      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.

  207. karen bellamy

    can you take fenbendazole during radiotherapy and chemo tablets at the same time

    1. fenbendazole

      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.

  208. Jeremy

    Has this protocol been tried with metastatic renal cell carcinoma? I’m currently on 40mg cabometyx daily and a monthly opdivo infusion

    1. fenbendazole

      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.

  209. Judy

    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?

    1. fenbendazole

      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.

  210. John

    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.

    1. fenbendazole

      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.

  211. Barb Tocci

    Why the vit E?

    1. fenbendazole

      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.

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