AdvertisementJoe Rogan Says He Has COVID-19 And Has Taken The Drug IvermectinSeptember 01, 2021Vanessa RomofacebookEmailJoe Rogan has told his Instagram followers he has been taking ivermectin, a deworming veterinary drug formulated for use in cows and horses, to help fight the coronavirus. The Food and Drug Administration has warned against taking the medication, saying animal doses of the drug can cause nausea, vomiting and in some cases severe hepatitis. (Getty Images)