藥物百科

左炔諾孕酮（Levonorgestrel）

Obstetrics & Gynecology
Obstetrics, gynaecology, and urinary-tract disorders
Emergency Contraceptive PillEmergency Contraception

Levonorgestrel is a progestin used primarily as an emergency contraceptive to prevent pregnancy after unprotected sexual intercourse or contraceptive failure.

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