| 释义 |
le·vo·nor·ges·trel AHD[lē'və-nôr-jĕsʹtrəl] D.J.[ˌliːvənɔːˈdʒestrəl]K.K.[ˌlivənɔrˈdʒɛstrəl]n.（名词）- The levorotatory form of norgestrel, used in oral contraceptives and in contraceptives implanted subdermally. In implant form it can prevent pregnancy for up to five years.诺普兰避孕剂，左旋去黄体酮乙基，乙基炔诺酮：炔诺孕酮的左旋偏光形式，用于口服避孕药和皮下植入避孕。植入避孕方式可避免五年内怀孕
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