This medication contains two different medications that are taken at different times: mifepristone and misoprostol. Mifepristone belongs to the class of medications called progesterone receptor modulators. It works by disrupting the way the hormone progesterone works in the body. Misoprostol belongs to the class of medications called prostaglandins. It works by causing muscle contractions in uterus, relaxation of the opening of the cervix, and shedding of the endometrium.
Mifepristone – misoprostol is used to terminate a developing pregnancy up to 63 days from the start of the last menstrual period.
Every month, progesterone is produced by the body to prepare the endometrium (the lining of the uterus) for a fertilized egg to implant. When no egg attaches to the wall of the uterus, the body stops producing progesterone and a menstrual bleed occurs. When a fertilized egg attaches to the wall of the uterus, progesterone continues to be produced, to support the growing embryo. When mifepristone is taken, it blocks the effect of the progesterone, causing the endometrium to break down and bleeding to begin.
This medication may be available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of this medication may not be used for all of the conditions discussed here.
Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.
Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.