Prescriptions for two antiparasitic drugs, ivermectin and fenbendazole, have recently surged in the US, according to a new study. Originally developed to treat parasitic worms, the drugs are now being discussed online as possible cancer treatments.
In January 2025, Mel Gibson appeared on the Joe Rogan Experience podcast claiming that ivermectin and fenbendazole can treat cancer. He said the drugs cured three friends of stage 4 cancer. Clips from the interview spread rapidly on social media.