After decades of research to find a contraceptive pill, doctors have now been swamped with synthetic steroid hormones that work both ways: they will either prevent conception or encourage it, depending on how they are given. The first such product was announced by Chicago's G. D. Searle & Co. (TIME, May 6); this also had stop-and-go power over the menstrual cycle. Last week three drug manufacturers joined the New York Academy of Sciences in sponsoring a Manhattan conference which received progress reports on the varied and potent effects of several "progestagens" (progesterone-like hormones)....
Medicine: Regulating Pregnancy
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