An efficient broad spectrum wormer for the treatment of internal parasites including: Tapeworms, Large strongyles, Small strongyles, Ascarids, Hairworm, Large mouthed stomach worm, Neck threadworm, Bots, Lungworm, and Intestinal threadworm. It also effectively controls skin lesions caused by Habronema and Draschia sp., and cutaneous larvae (summer sores) and microfilariae of Onchocerca sp. (cutaneous onchocerciasis).