First Companion Ivermax® (ivermectin) Equine PasteAn effective, broad spectrum paste that helps to control and kill internal parasites, including bots and the arterial stages of Strongylus vulgaris, with a single dose. Ivermax Equine Paste contains ivermectin 1. 87% anthelmintic and boticide. Apple flavored for palatability. This syringe contains sufficient paste to treat one 1250 pound horse at the recommended dose rate of 91 mcg ivermectin per pound (200 mcg kg) body weight. Each weight marking on