Medical Definition of RU-486

  • Medical Author:
    Melissa Conrad Stöppler, MD

    Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

Reviewed on 12/11/2018

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

RU-486 has been used in combination with another drug called misoprostol, 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.

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Reviewed on 12/11/2018