The dose of mifepristone approved by most government agencies for medical abortion is 600 mg. The aim of this review was to summarize extant data on the effectiveness and safety of regimens using the widely recommended lower mifepristone dose, 200 mg, followed by misoprostol in early pregnancy and to explore potential correlates of abortion failure.

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Jan. 2013
Staff Publication
Medical Abortion
Raymond, Elizabeth G., Shannon, Caitlin, Winikoff, Beverly, Raymond, E.G., Shannon, C., Weaver, M.A., Winikoff, B.