You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Antiprogesterone compound RU-486 is effective for inducing aboion if the duration of pregnancy is: and explain in detail?
Mifepristone (RU 486) an Antiprogestin, degenerates the pregnancy in doses ranging from 200-600mg. This is followed by Misoprostol (prostagladin) in 400ug orally or 800ug vaginally which causes uterine contractions to expel the dead fetus. This regime is -99% successful - If done within 1st 7 weeks -95% successful - If done within 1st 9 weeks