RU-486 is the former name of mifepristone — one of the medications that you take to have a medication abortion. RU-486 is now called “the abortion pill” or “Mifeprex” (the brand name for mifepristone).
RU-486 was developed in the 1980s. It’s been safely used in Europe since 1987, and in the US since 2000.
RU-486 blocks a hormone that your body needs to continue a pregnancy.
It works best when you use it with another medication called misoprostol, which causes bleeding to empty your uterus.
The RU-486 abortion pill is a safe and effective way to end an early pregnancy.