Each mL contains 150,000 units of procaine penicillin G and 150,000 units of benzathine penicillin. Provides therapeutic levels of antibiotic activity for up to 48 hours after a single dose. Indicated for pneumonia, shipping fever, upper respiratory infections, and black leg disease. Labeled for use in beef cattle. 100 mL bottle. Note: This item is a refrigerated pharmaceutical. Please see our Shipping page for important information.