中断中期妊娠常用不同途径的前列腺素引产,但副作用较大。因此,应寻找有效缩短诱导流产时间且能减轻副作用和并发症的方法。 米非司酮(RU486)是一种孕酮和糖皮质激素受体的拮抗剂。它可引起子宫收缩并使子宫对前列腺素的衍生物敏感性增强。已 Interruption of mid-pregnancy different ways of prostaglandin induction of labor, but a larger side effects. Therefore, we should find ways to effectively shorten the induction of abortion time and reduce the side effects and complications. Mifepristone (RU486) is an antagonist of progesterone and glucocorticoid receptors. It causes contraction of the uterus and increases sensitivity of the uterus to prostaglandin derivatives. Already