Bimectin(R) 1.87% Ivermectin Apple Flavored Paste Wormer by Bimeda(R) Anthelmintic and boticide that c ontrols large and small strongyles, pinworms, ascarids, hairworms, large mouth stomach worms, lungworms, intestinal threadworms and bots. Features: Great apple flavor 1.87% Ivermectin Proven safe for pregnant mares, breeding stallions and foals Item Specifications: Dosage: Each syringe treats up to a 1250 lb. horse. Syringes are marked in 250 lb. increments. For additional product information, click on the Downloadable Resources to the right.