(two 0.5mg. doses SC at 2 hour intervals). Mares will usually foal within 4 hours. As long as the mammary secretions indicate the foal is ready the prostaglandin method may have a lower incidence of complications than oxytocin. SUMMARY The complications associated with induction have been: prematurity, failure of passive transfer, myometrial spasm, premature separation of the placenta, malpresentation of the foal, and retained placenta. The best ways to minimize complications are to be sure the foal is mature and the mare ready.