The antiparasitic drug fenbendazole, more commonly known as a dog wormer ingredient, has been shown to suppress the growth of certain types of cancer cells in cell cultures and mice. However, there’s insufficient evidence from randomized trials that it can cure cancer in people.
Studies in cell culture have found that fenbendazole may interfere with the normal growth of cancer cells, possibly by preventing microtubules from growing properly. These microtubules provide structure to cells and act as highways for transporting material within the cell.
Researchers have also observed that fenbendazole may block proliferation and cause cellular death in certain cancers. However, the exact mechanism remains unclear.
A 2021 study published in Scientific Reports observed that mebendazole, a similar antiparasitic drug to fenbendazole, could slow down pancreatic cancer progression in mice by preventing the formation of tubulin, a structural component in the cancerous cells.
Similarly, in the same study, researchers found that fenbendazole reduced tumor growth in a mouse model of colon cancer by disrupting cellular signaling pathways. In addition, in a separate experiment, they showed that mebendazole can prevent the development of metastases in pancreatic cancer patients.
Despite these observations, the claim that fenbendazole can cure cancer is widespread in social media and has spread in part because of anecdotal reports of a man who claimed he cured his lung cancer using a combination of fenbendazole and other supplements. However, it’s important to remember that Joe Tippens had a conventional treatment plan that likely contributed to his remission, including surgery and chemotherapy.fenbendazole cancer