Fenbendazole is a widely used antiparasitic drug. It has been shown to slow cancer growth in cell cultures and animals. However, it hasn’t been tested in human patients to see if it will actually cure cancer.
In 2020, a study found that animal anthelmintics (drugs that kill parasites in other organisms) might have anti-cancer effects. But, the researchers say, turning those findings into a pill that would work in people will be a long journey.
Several people on social media claim that a form of fenbendazole—which is sold in pet stores for treating worms and other parasites in dogs and cats—cured their cancer. The claims were based on the anecdotal account of Joe Tippens, who claimed his non-small-cell lung cancer went into remission after he took fenbendazole for a worm infection. But Tippens was also taking other conventional cancer treatments at the time, so it’s impossible to know if fenbendazole alone did the trick.
In this article, we will take a close look at the evidence supporting and refuting the claim that fenbendazole cures cancer. We’ll cover the basics of fenbendazole, then examine a few articles that present Case Studies of people who claim to have cured themselves using this treatment.
Several scientific journals have reported that fenbendazole has cytotoxic effects on tumor cells in vitro and in vivo. It inhibits the polymerization of microtubules and blocks cell-cycle progression, causing mitotic catastrophe. It also increases the ubiquitination and proteasome-mediated degradation of cyclin B1 and decreases CDK1 protein levels. fenbendazole cancer treatment