The mifepristone/oral prostaglandin combination fails in about five of every 100 cases when used up to 49 days LMP. Failures include both ongoing pregnancies (1 in 100) and incomplete abortions (3 in 100) as well as surgical termination done at the patient's request or for medical reasons (1 in 100). When drug failure happens, the abortion should be completed through surgical means, generally vacuum aspiration.