Mifepristone blocks the action of the hormone progesterone, which is necessary for pregnancy to continue. It is typically taken as a single dose in the doctor's office.
Misoprostol, taken 24-48 hours after mifepristone, causes the cervix to soften and the uterus to contract, expelling the pregnancy tissue. It is usually taken at home, but some doctors may require you to take it in the clinic.
Medical abortion is over 95% effective in terminating a pregnancy up to 10 weeks. It is generally safe and well-tolerated, with common side effects including nausea, vomiting, diarrhoea, abdominal discomfort, and vaginal bleeding. Serious complications, such as infection or haemorrhage, are rare.
If you are considering medical abortion, it is important to talk to your doctor to make sure it is the right option for you and to get detailed instructions on how to use the medications.