Horse Health Products Horse Dewormer, 0.21 oz, Solid, Clear, Ingredients: Ivermectin Comp Bla, Avermectin A1a, 5-O-Demethyl-25-de(1-Methylpropyl)-22,23-Dihydro-25-(1-Methylethyl)- Warning from the manufacturer: COVID-19 Alert concerning Ivermectin Products: WARNING! A number of products including Equine Dewormer, Sheep Drench, Cattle Pour On, and Cattle Injectables contain the anti-parasite ingredient Ivermectin. Despite media reports that Ivermectin could potentially be used to treat people with COVID-19, these products are not safe or approved for human use, which could cause severe personal injury or death.