Weber-Diehl F, Lehnert J, Lachnit U
Department of Fertility Control, Schering AG, Berlin, Germany.
Contraception. 1993 Oct;48(4):291-301. doi: 10.1016/0010-7824(93)90076-j.
Two triphasic oral contraceptives containing either gestodene or norethindrone as the progestogenic compound combined with ethinyl estradiol were compared in a randomized clinical trial to assess their contraceptive reliability, clinical tolerance and cycle control. Both preparations were effective in preventing pregnancy. The gestodene preparation proved significantly superior regarding cycle control and general tolerance.
在一项随机临床试验中，对两种分别含有孕二烯酮或炔诺酮作为孕激素成分并与炔雌醇联合使用的三相口服避孕药进行了比较，以评估其避孕可靠性、临床耐受性和周期控制情况。两种制剂在预防妊娠方面均有效。孕二烯酮制剂在周期控制和总体耐受性方面被证明明显更优。
