Ivermectin is a deworming drug intended for use in animals, including horses and cows. AP Photo/Ted S. Warren Though researchers have been studying the animal deworming drug ivermectin for decades, there is no evidence that it’s a safe or effective way to treat cancer in people. However, a June 2026 study put the topic back in the spotlight. After being downloaded more than 85,000 times before its official publication, the study gained traction on social media – particularly X – and within alt