A patented formula of ivermectin paste provides parasite control for 60 species and stages of parasites in horses. Removes worms and bots with a single dose. Each syringe treats 1250 lbs. of body weight. Syringes are adjustable in 250 lb. increments. 1.87% ivermectin. Effectively controls large and small strongyles, roundworms, pinworms, largemouth stomach worms, hairworms, thread worms, lungworms, bots and summer sores caused by Habronema and Draschia. Contents will treat up to 1205 lb. body weight. May be used in horses of all ages, including mares at any stage of pregnancy.