(AgriLabs) Oxytocin Injection may be recommended for obstetrical use in cows, horses, ewes and sows, and to induce milk let-down in cows and sows. Because of the specific action of Oxytocin upon the uterine musculature, it is recommended as an aid to precipitate labor, accelerate normal parturition, for evacuation of postpartum uterine debris, or for postoperative contraction of the uterus. Oxytocin will contract the smooth muscle cells of the mammary gland to induce milk let-down if the udder is in a proper physiological state. Each ml of Oxytocin Injection contains 20 USP units oxytocin. Administer by SQ, IM or IV route. The recommended dosage of Oxytocin for obstetrical use is 5 ml in cows and horses; 1.5-2.5 ml in ewes and sows. The recommended dosage for milk let-down is 0.5-1 ml in cows; 0.25-1 ml in sows. Oxytocin.