 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  uses of Mifepristone Oral: Mifepristone (also known as RU 486) is used to end a pregnancy during the early part of a pregnancy. It is used up to week 10 of pregnancy (up to 70 days after the first day of your last menstrual period). Mifepristone blocks a natural substance (progesterone) that is needed for your pregnancy to continue. It is usually used together with another medicine called misoprostol.Mifepristone must not be used if you have a rare abnormal pregnancy that is outside the womb (ectopic pregnancy). It will not end the pregnancy in this case. It may cause an ectopic pregnancy to rupture, resulting in very serious bleeding. How to use mifepristone oral Read the Medication Guide provided by your doctor before you start using mifepristone. Keep the guide to reread if needed. Read and sign the Patient Agreement form provided by your doctor. If you have any questions, consult your doctor or pharmacist. You must visit the doctor's office at least 2 times to complete your treatment and important examinations. This treatment is only given under direct medical supervision. Learn about who to call and what to do in case of an emergency. </s>