There are two pills commonly used for abortion , Mifepristone and Misoprostol. Mifepristone blocks the pregnancy hormone needed for a pregnancy to grow, and Misoprostol helps the cervix to relax and the uterus to contract to expel the pregnancy.
It is important to know that the abortion pills are different from the morning-after pill, or emergency contraception (levonorgestrel, ulipristal). For more information on emergency contraception, click here.
 WHO. Safe abortion: technical and policy guidance for health systems. Second edition. 2012. Retrieved from: https://apps.who.int/iris/bitstream/handle/10665/70914/?sequence=1