Abstract
Ulipristal acetate, the first of a new class of selective progesterone receptor modulators, is indicated for emergency contraception within 120 hours of unprotected sexual intercourse or contraceptive failure. In clinical trials, a single oral dose of ulipristal acetate was effective in preventing pregnancies in women requesting emergency contraception and provided sustained efficacy throughout the 120-hour postcoital period.
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Scott, L.J., McKeage, K. & Croxtall, J.D. Ulipristal acetate: a guide to its use in emergency contraception. Drugs Ther Perspect 28, 6–9 (2012). https://doi.org/10.2165/11606240-000000000-00000
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DOI: https://doi.org/10.2165/11606240-000000000-00000