Oxytocin is a drug used for stimulating uterine contractions in labor, controlling bleeding after birth, and treating incomplete or inevitable abortion. Learn about its side effects, dosage, pregnancy and breastfeeding safety, and related conditions. The pharmacologic and clinical properties of oxytocin are identical with those of naturally occurring oxytocin principle of the posterior lobe of pituitary. Oxytocin exerts a selective action on the smooth musculature of the uterus, particularly toward the end of pregnancy, during labor, and immediately following delivery. Oxytocin is a uterine stimulant belonging to the pharmacological class of Posterior pituitary hormone. The FDA approves Oxytocin for antepartum (inducing labour in cases of preeclampsia, maternal diabetes, premature rupture of membranes, uterine inertia, and abortions) and postpartum (delivering the ... Oxytocin Injection Oxytocin injection is a synthetic hormone that helps speed up delivery or controls bleeding after childbirth. A healthcare provider will give you this infusion into a vein in a hospital or clinic setting. The brand name of this medication is Pitocin®.