Moggia A V
J Reprod Med. 1983 Jan;28(1 Suppl):77-80.
Levonorgestrel, 0.15 mg, and ethinyl estradiol, 0.03 mg, an ultra-low-dose oral contraceptive product, was studied in Latin America. In total, 1,206 sexually active, fertile women in their reproductive years were followed through 9,736 cycles. Only one of eight pregnancies was attributed to failure of the medication, resulting in a corrected Pearl index of 0.13. Very good cycle regulation was achieved, with an acceptably low rate of intermenstrual bleeding. The medication was discontinued for medical reasons in only 5% of the patients. Apart from a mild case of thrombophlebitis, there were no major side effects. These studies show that this combination oral contraceptive provides effective contraception with a very low incidence of side effects.
左炔诺孕酮0.15毫克和炔雌醇0.03毫克，一种超低剂量口服避孕药产品，在拉丁美洲进行了研究。共有1206名处于生育年龄、有性行为且可生育的女性接受了9736个周期的跟踪。八次怀孕中只有一次归因于药物失效，校正后的 Pearl 指数为0.13。实现了非常好的月经周期调节，经间期出血率低到可以接受。仅5%的患者因医疗原因停药。除了一例轻度血栓性静脉炎外，没有重大副作用。这些研究表明，这种复方口服避孕药能提供有效的避孕效果，且副作用发生率极低。
