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{%type%} Definitions

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n. - A progesterone derivative used in oral contraceptives and in the control of menstruation and the treatment of abnormal uterine bleeding.

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Usage examples (3)
  • Even today, norethindrone, though not norethynodrel, is still used by millions of women as an oral contraceptive.
  • Both Syntex's norethindrone and Searle's norethynodrel were approved in 1957 by the FDA for the treatment of menstrual disorders.
  • One and one-half years after the first publication by the Syntex group, chemists at G.D. Searle -- a company for which Pincus consulted, synthesized a close relative,...
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