The correct name for the uterine contraction injection is contractin. Nausea, vomiting, and increased heart rate may occur with contraction injections, and high blood pressure or water retention may occur with large doses. IUD is a uterine contraction medicine, its main ingredient is IUD, clinically used for inducing labor, inducing labor, postpartum and post abortion uterine bleeding due to weak contraction or poor recovery. Some patients will have arrhythmia, accelerated heart rate and nausea and vomiting when they have been given uterotonin, and high blood pressure or water retention may occur with overdose. It should be used with caution in people with heart disease and unsegmented fetal head. Note that the use is prohibited in patients with obstructed birth canal, oversized uterus and strong contractions. When patients need to use uterotonin, they need to use it under the operation of professional doctors, and should not use the medicine by themselves.