Plenty of unapproved, dubious, or downright dangerous COVID-19 treatments have come and gone over the past year, but the US Food and Drug Administration (FDA) has come out with a refresher warning after a number of people have fallen sick using horse deworming drugs to treat COVID-19. The drug is ivermectin, a cheap and widely available medication used to treat parasite infestations. In humans, it’s used to treat head lice and scabies, as well as roundworms, and it’s also widely used on animals to treat parasitic worms. However, the products used to treat humans are different from the ones used...
