A podcast featuring Joe Rogan and Mel Gibson has sparked interest in using ivermectin for cancer treatment, despite a lack of evidence that it is effective for this purpose. Some cancer patients are reportedly turning to ivermectin, and there are indications that research into its potential use for cancer is being explored, with one report suggesting a significant investment in such research. However, the effectiveness of ivermectin as a cancer treatment remains uncertain and is not supported by current evidence.