Ivermectin is a medication that is used to treat certain parasitic infections in humans and animals. In humans, ivermectin tablets are approved by the FDA to treat two infections caused by parasitic worms: strongyloidiasis and onchocerciasis. Topical formulations of ivermectin are also approved to treat head lice and skin conditions like rosacea and scabies. In animals, certain formulations of ivermectin are approved to prevent heartworm disease and treat certain internal and external parasites. It is important to note that medications formulated or intended for use in animals should not be used by humans, as they can be highly concentrated and pose a significant toxicity risk. Ivermectin is not approved by the FDA for the treatment of any viral infection, including COVID-19. While some studies have suggested that ivermectin may have antiviral properties and could potentially be used to treat COVID-19, more research is needed to determine its safety and efficacy for this purpose.