Mifepristone is a hormonal drug and a strong anti-pregnancy hormone, which is used to prevent early pregnancy. Mifepristone is a hormone drug and a strong anti-progestin, which is used to prevent early pregnancy, and women who have intercourse within 72 hours of taking this drug are usually not pregnant. However, the chances of any contraceptive pill being successful in preventing pregnancy are not 100%, so the chances of this drug preventing pregnancy are not 100% either. It is recommended to take an early pregnancy test 15 days after intercourse. Common adverse effects of mifepristone tablets include nausea, headache, abdominal pain, and dizziness, and it is contraindicated in patients with heart, liver, and kidney disorders. It is not recommended for people with severe reactions to early pregnancy, nausea and frequent vomiting to avoid aggravating the early pregnancy reaction. In addition, Mifepristone tablets should be taken under the guidance of a doctor, avoiding the use of medication on their own, so as not to cause related adverse reactions.