SYN: norethindrone.
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n.
a synthetic female sex hormone (see progestogen) administered by mouth to treat menstrual disorders, including amenorrhoea. Its main use, however, is in oral contraceptives, often in combination with an oestrogen; it is also used in hormone replacement therapy. Trade names: Micronor, Primolut N.
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nor·eth·is·ter·one (nor″əth-isґtər-ōn) INN and BAN for norethindrone.Medical dictionary. 2011.