A 324 gm/lb. tetracycline hydrochloride soluble powder, with Citric Acid as a carrier, for use in the control and treatment of bacterial enteritis (scours) caused by E. coli and bacterial pneumonia associated with Pasteurella, Hemophilus and Klebsiella. Mix in drinking water according to label directions. Each 5 oz. package will medicate approximately 100 gallons of water. 5 day withdrawal.