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Definition of Mifepristone

Mifepristone: The French abortion pill, also known as RU-486.

RU-486 has been used in combination with another drug called misoprostol, to terminate pregnancy at an early stage. It is used with women who are no more than 7 weeks pregnant. The drug has 95% effectiveness. About 5% of women using RU-486 in early pregnancies need additional medical intervention because of incomplete abortions. (doctors often intervene at higher rates in cases of natural miscarriages). The side effects with RU-486 are similar to those of a natural miscarriage.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=13576
Last Editorial Review: 6/14/2012

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