Price lowered! Ivermectin is still an excellent parasiticide for controlling many gastrointestinal round worms, lung worms, sucking lice, and mange. It is cost effective and easy to administer. Comes in two sizes: 8 fl. oz. (240 ml.) and 960 ml. The larger size is enough for about 80 goats. Follow label directions for dosage. The 8 oz. bottle is only $29.95.