Hallow Dear, WHO has recommended Tab. Mifepristone to be followed after 24-48 hours by Tab. Misoprostol for termination of pregnancy up to 9 weeks of gestation. After last dose of Misoprostol, usually abortion starts within 24 hours; however, occasionally it may be delayed up to 7 days. The completeness of abortion can be ascertained by ultrasonography. For this purpose, pregnancy test on urine is not useful since it requires more than a week to become negative. These medicines are prescription medicines and should be obtained by Obstetrician s prescription with advive regarding the dose and schedule of medicines. It is advisable to have a follow up visit to the Obstetrician after 7 days of medicines. These medicines cause developmental abnormalities in the baby. Hence, in case of failure, the decision should not be changed to continuation of pregnancy; pregnancy should be terminated by surgical methods like MVA aspiration. I hope this helps you. Dr. Nishikant Shrotri