📄 2 mins.

Fenbendazole (often referred to as Fenben or Panacur) – a broad spectrum benzimidazole class anthelmintic drug. The medication has been introduced in 1974 and is currently used all over the world. It is inexpensive to produce and is available over-the-counter in many countries. (Source)

In the past couple of decades, it has been noted that fenbendazole and medications of the same class exhibit a measurable anti-cancer effect. Various research demonstrated that anthelmintic drugs alone could be effective in causing regression of various tumor types, they could also be used in combination with other conventional treatment methods.  (Source1Source2, Source3)

These findings led to speculations that fenbendazole could be repurposed for use as a complementary anti-cancer medicine. Intriguingly, benzimidazole class drugs appear to work in a similar fashion as a wide range of modern chemotherapeutic drugs, such as taxols and vinca alkaloids, without the excessive toxicity. (Source)

The available toxicological information suggests that fenbendazole seems to be well tolerated in humans after oral exposure and has very few side effects. However, observations in humans are limited. (Source)

Under normal conditions, pure fenbendazole appears in powder form, whitish color and has poor solubility in water. When dissolved in acetone, the compound emits colored impurities above itself.

Fenbendazole has limited absorption in the intestinal tract after oral administration. When consumed, not more than 10% of the medication is absorbed.

Bioavailability can be increased by the presence of food in the gut. Food slows down the intestines and increases blood flow to the digestive tract, improving the absorption of the medication.

This Post Has 6 Comments

  1. Stefan

    Peavey Mart or TSC may have Fenben

  2. Roy

    Praise the LORD!

  3. zoritoler imol

    I think you have observed some very interesting points, thanks for the post.

  4. Donald

    Average Golden Retriever life spans have been cut in half, mostly due to cancers. Have there been any cancer strains that have not responded to Fenbendazole treatment?

    1. fenbendazole

      Hello Donald,
      Golden Retrievers have indeed experienced a significant decrease in average life span, largely due to an increased incidence of cancers. Although fenbendazole has been explored as a potential treatment for various types of cancer in animals and humans, its effectiveness can vary depending on the specific type of cancer and other factors.
      Not all cancers respond equally well to fenbendazole. Certain types may be more resistant due to their biological characteristics or reproductive mechanisms, and cancer cells can also develop resistance to treatment. Overall, the effectiveness of fenbendazole can vary significantly between individual dogs, even with the same type of cancer.
      Scientific research is ongoing, with scientists continually investigating which types of cancer may be more susceptible to fenbendazole and how to overcome resistance mechanisms.
      In conclusion, while fenbendazole shows promise and has been used as an off-label treatment for various cancers, it is not universally effective against all cancer strains. Its effectiveness depends on the type of cancer, the individual dog’s health, and other biological factors.

  5. Richard Vance

    My husband was diagnosed on Nov 7, 2022 with pancreatic cancer don’t know what stage yet .
    He took 2 rounds of chemo so far one he takes for 46 hrs every two weeks 1 he take before the 3 day chemo and about the last 40 min he hurts so bad he can’t stand it. Can you help we are in America USA

Leave a Reply