25 Mg/Lb (55Mg/Kg) For Initial Dose Followed By 12.5 Mg/Lb (27.5Mg/Kg) For Maintenance Doses Every 24 Hours. During Treatment Period Make Certain That Animals Maintain Adequate Water Intake. For Intravenous Use Only In Cattle. Sulfadimethoxine 40% Injectable - Indicated For The Treatment Of Bovine Respiratory Disease Complex (Shipping Fever Complex) Bacterial Pneumonia Associated With Pasteurella Spp. Sensitive To Sulfadimethoxine. Each Ml Contains 400Mg Sulfadimethoxine