• 100 MILLILITER • Indicated for treatment of upper respiratory infections, shipping fever complex, and blackleg in beef cattle. • The powerful antibiotic is referred to as long-lasting penicillin. • It helps to reduce the time, labor, and stress of frequent injections. • For beef cattle: use two milliliters for every 150 pounds of body weight. • This medication is to be injected subcutaneously only. • Not suitable for use on any other species of animal.