Posterior pituitary hormone has many effects and is a prescription drug that needs to be administered under a doctor’s supervision. These drugs can be used for pulmonary hemorrhage, uremia, bleeding from ruptured esophagogastric varices, postpartum hemorrhage due to incomplete uterine regeneration or poor contractions. Posterior pituitary contains oxytocin and pressin. Oxytocin has a selective effect on the smooth muscle of the uterus, and its action on the uterus is characterized by strong contraction of the uterine body and minimal contraction of the cervix. It has a strong excitatory effect on the uterus and also a pressure-raising effect, so it should not be used to induce labor or induce labor. If palpitations, chest tightness and pallor occur after using the drug, the drug should be stopped immediately, and the titer must be strictly controlled, usually 20 drops per minute. In addition, posterior pituitary gland is prohibited in pregnancy hypertensive disease, coronary heart failure, pulmonary heart disease, as well as allergic to this product, fetal malposition, pelvic too narrow, obstruction of the birth canal with a history of cesarean section pregnant women can not be used. Therefore, it must be carried out under the guidance of a regular hospital, not blindly, otherwise it may be life-threatening. In the process of use, if any discomfort occurs, it must be communicated to the doctor in time to solve.