Ivermectin is now making a comeback, after its use receded in the waning years of the pandemic. Now, especially in conservative political circles, its reputation keeps growing as a kind of cure-all for various ailments, and even for cancer " despite a lack of evidence it works. Last month, Trump's appointed head of the National Cancer Institute, Anthony Letai, said the agency was conducting preclinical studies on ivermectin's ability to kill cancer cells " though doctors say it holds little promise. And Florida's First Lady Casey DeSantis, a breast cancer survivor, touted it in announcing $60 million in cancer research funding, including use of ivermectin.