The Medical Letter on Drugs and Therapeutics
Mifepristone (Mifeprex) Label Changes
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The FDA has approved several significant changes in the labeling of mifepristone (Mifeprex – Danco), an oral antiprogestin that has been used in the US for more than 15 years for termination of intrauterine pregnancy.1 It has generally been used with the prostaglandin analog misoprostol (Cytotec, and generics).

TIMING OF USE — Under the new labeling, mifepristone and misoprostol can now be used to terminate pregnancy for up to 70 days, rather than 49 days, after the first day of the last menstrual period. Multiple studies have shown that the combination is >96.5% effective through 63 days of gestation; data on its effectiveness between 64 and 70 days are much more limited.2 In a retrospective cohort study of data from more than 30,000 women undergoing either medical or surgical abortion before 64 days of gestation, efficacy ... more      

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Title: Mifepristone (Mifeprex) Label Changes
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