Medical abortion is the use of the abortion pill to terminate a pregnancy in the first and second trimester. Mifepristone is used to block the hormone progesterone stopping the pregnancy from growing. The Misoprostol abortion pills causes the uterus to cramp and contract expelling the fetus from the uterus
Oral mifepristone (Mifeprex) and oral misoprostol (Cytotec). This is the most common type of medical abortion. These medications are usually taken within seven weeks of the first day of your last period.
Oral mifepristone and vaginal, buccal or sublingual misoprostol. This type of medical abortion uses the same medications as the previous method, but with a slowly dissolving misoprostol tablet placed in your vagina (vaginal route), in your mouth between your teeth and cheek (buccal route), or under your tongue (sublingual route).
Methotrexate and vaginal misoprostol. Methotrexate (Otrexup, Rasuvo, others) is rarely used for elective, unwanted pregnancies, although it's still used for pregnancies outside of the uterus (ectopic pregnancies).
Vaginal misoprostol alone can be effective when used before nine weeks of gestation of the embryo. But vaginal misoprostol alone is less effective than other types of medical abortion. The medications used in a medical abortion cause vaginal bleeding and abdominal cramping