Mifepristone can be used at the age of 45, but it needs to be contraindicated for smoking women over the age of 45. Mifepristone is a western drug, an anti-early pregnancy drug, which can be used in sequential combination with prostaglandin drugs, so it can be used to terminate a pregnancy within 49 days of menopause. Mifepristone can cause adverse reactions such as uterine bleeding, lower abdominal pain, nausea, vomiting, fainting, weakness, pelvic pain, and a feeling of anal cramping. Mifepristone is contraindicated for those who are allergic to any of the components of mifepristone; contraindicated for patients with cardiac, hepatic and renal diseases and adrenocortical insufficiency; contraindicated for those who are pregnant with IUD and suspected of ectopic pregnancy; and contraindicated for smokers who are more than 35 years old. If you need to use drugs in the clinic need to be used under the guidance of a doctor, do not use the drug by yourself to avoid adverse effects on the body.