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Clinical Trial
. 1974 Mar;9(3):221-5.
doi: 10.1016/0010-7824(74)90013-4.

Further experience with quingestanol acetate as a postcoital oral contraceptive

T W Mischler, B Rubio, A Larranaga, E Guiloff, A V Moggia
Clinical Trial

Further experience with quingestanol acetate as a postcoital oral contraceptive

T W Mischler et al. Contraception. 1974 Mar.

Abstract

PIP: The experiences of 4 clinical research groups, 1 each in Mexico, Peru, Chile, and Argentina, using quingestanol acetate as a postcoital oral contraceptive is described. 2702 patients accumulated 18,531 cycles of postcoital therapy. In Mexico with a 800 mcg dose, the pregnancy rate was .6. In Chile and Peru at a dose of 750 mcg, pregnancy rates were over 20. Differences in selection of patients may account for part of the difference.

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