02/06/2026
Fenbendazole for Cancer Prevention
On the one hand there are the risks associated with taking medicine you don't need. And on the other is taking medicine that will prevent something like cancer.
The conceptual issue with prevention is the logical issue of proving a negative. That is, if you never get cancer after taking fenben it is impossible to determine that fenben caused you not to get cancer.
Having said that, some of the animal studies cited here DEFINITELY prove that fenbendazole PREVENTS cancer. In fact, the initial observation was that prior routine veterinary deworming treatment with fenben prevented the experimental brain tumor grafts from taking root and growing.
This is literally the definition of prevention, see Bai et al., (2011) for example. Also recall that the nation of India, which routinely deworms its population twice a year using a fenbendazole analog (albendazole), has one-third the incidence of cancer as does the US.
Regarding a protocol.
Some healthy people, with no concerning risk factors do the following:
once every 3 months we take 222 mg fenbendazole along with a tablespoon of olive oil for 3 consecutive days.
A reasonable preventative protocol could be developed that took into account risk factors and weighed the aggressiveness of fenbendazole administration based on those risk factors.
Because the safety profile is so great and the cost of fenbendazole is so low, and the cost of developing cancer is catastrophic, it may be wise to consider some sort of preventative program.
A devil’s advocate might argue that, because it appears for all intents and purposes that fenbendazole can cure cancer, the rationale of preventing something that can be easily eradicated is somewhat of a fool’s errand.
Whether the up-front preventative approach or the after-the-fact curative approach is adopted, it is nonetheless comforting and empowering to have a weapon like fenbendazole in your arsenal.