Misoprostol

Misoprostol, sold under the brandname Cytotec among others, is a medication used to start labor, cause an abortion, prevent and treat stomach ulcers, and treat postpartum bleeding due to poor contraction of the uterus. For abortions it is often used with mifepristone or methotrexate. By itself effectiveness for this purpose is between 66% and 90%. It is taken either by mouth, under the tongue, or placed in the vagina.