A multicenter clinical investigation employing ethinyl estradiol combined with dl-norgestrel as a postcoital contraceptive agent

A. A. Yuzpe; R. P. Smith; A. W. Rademaker

A multicenter clinical investigation employing ethinyl estradiol combined with dl-norgestrel as a postcoital contraceptive agent

A. A. Yuzpe, R. P. Smith, A. W. Rademaker

Preventive Medicine

Research output: Contribution to journal › Article › peer-review

132 Scopus citations

Abstract

692 women were enrolled in a multicenter clinical trial to evaluate a combination of ethinyl estradiol and dl-norgestrel as a postcoital contraceptive. When compared with various formulas predicting the probability of pregnancy in this group, the number of pregnancies observed appears to be reduced to approximately 84%. The combination of 200 μg of ethinyl estradiol and 2 mg of dl-norgestrel seems to be effective as a postcoital contraceptive with several advantages over estrogens alone.

Original language	English (US)
Pages (from-to)	508-513
Number of pages	6
Journal	Fertility and Sterility
Volume	37
Issue number	4
State	Published - Jan 1 1982

ASJC Scopus subject areas

Reproductive Medicine
Obstetrics and Gynecology

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