Man Yuele is the trade name of Levonorgestrel IUD System and its a medicine. The approval number of levonorgestrel IUD system is in the category of State Pharmacopoeia, so it is a drug. The drug is an anti-estrogenic activity of progesterone, which not only makes the cervical mucus viscous preventing the passage of sperm through the cervical canal, the local internal environment of the uterus and fallopian tubes inhibits the activity and function of sperm and prevents fertilization; it can also be used for the treatment of idiopathic menorrhagia. So clinically the drug is used for contraception, relief of menorrhagia caused by non-organic pathology. Adverse reactions such as headache, abdominal pain and nausea are associated with the use of the drug. It is contraindicated in known or suspected pregnancy, infection of the lower genital tract, postpartum endometritis, infected abortion in the past 3 months, abnormal uterine bleeding of unknown origin. Before using the drug, one should go to a specialized hospital for examination, such as pelvic examination, breast examination and cervical smear, etc.; after using the drug, one should go to the hospital for regular follow-up examination. If medication is needed, it should be used under the guidance of a specialist.