Atgard-C Scoop-A-Sow - 8lb Boehringer Ingelheim Gets the most costly and most common worms: whipworms, roundworms, thick stomach worms and nodular worms. Convenient, premeasured for on-farm mixing of swine feed. Dosage: Mix 8 lbs. Atgard-C with 2,000 lbs. complete feed; give to boars, gilts, and sows at the rate of 6 lbs. per head for 1 feeding. Or may be top dressed to worm individual animals.