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本文报道三烯炔诺酮探亲片服用者3,439人,共5,234周期,避孕有效率为99.75％,副反应少,简便有效,对月经经期、经量无明显影响,可供探亲随时服用。服药后周期延长及缩短者分别占13.63％及7.4％,不规则出血率为5.63％,大部分人可自愈,极少数人需雌激素治疗。其抗生育作用可能是抑制排卵及子宫内膜发育,改变宫颈粘液性质,改变输卵管功能及加快运行速度,从而干扰孕卵着床。
This article reports the 3,439 people visiting the film of norethindrone triphosphate, a total of 5,234 cycles, contraceptive efficiency was 99.75%, fewer side effects, simple and effective on the menstrual period, by the amount of no significant effect, available to visit relatives at any time taking. After taking the drug to extend and shorten the period accounted for 13.63% and 7.4%, irregular bleeding rate was 5.63%, most people can heal, very few people need estrogen therapy. Its anti-fertility may be to inhibit ovulation and endometrial development, change the nature of cervical mucus, change tubal function and speed up the operation, thus interfering with pregnancy egg implantation.