Each ml of Excede Sterile Suspension contains the ceftiofur crystalline-free acid equivalent to 200 mg ceftiofur. The usual dosage for cattle is 1 ml per 40 kg body weight, given by subcutaneous injection. Horses usually receive 2 doses, 4 days apart, at the rate of 1 ml per 40 kg of body weight, given by intramuscular (IM) injection.