Medicated powder aids in the treatment and prevention of bovine coccidiosis in calves caused by Eimeria bovis and E. zurnii. Contains 6,237 mg amprolium per oz. Dosage: 21-day prevention - add 1-1/2 oz to 1 qt water and administer as drench 1 oz of solution per 100 lbs body wt daily for 21 days; or add one 10 oz pack to 250 gals of drinking water, offer as sole source of drinking water for 21 days. 5-day treatment - add 3 oz to 1 qt of water and administer as drench 1 oz of solution per 100 lbs body wt daily for 5 days; or add one 10 oz pack to 125 gals of drinking water, offer as sole source of drinking water for 5 days. Not for use in veal calves. 24 hr slaughter withdrawal. Multilayer foil and plastic packet provides strong moisture barrier and is FDA approved.