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2种广泛应用的口服避孕药片[其一含左旋甲炔诺酮(Levonorgestrel)250mg,乙炔雌二醇50μg;另一含去氧孕烯(desogestrel)150μg,乙炔雌二醇30ug]的效力及依从性已在1055名妇女的12630个月经周期中进行了经阴道给药的对比研究.此多中心临床试验是通过“生殖保键的南-南合作”这是一个第三世界从事生殖保健领域工作的科学家组织)在9个发展中国家里完成的.这项研究肯定了这两种口服药物经阴道给药时的功效.左旋甲炔诺酮组
Two widely used oral contraceptive tablets [one with 250 mg of Levonorgestrel and 50 μg of ethinyl estradiol; the other with 150 μg of desogestrel and 30 μg of ethinyl estradiol] efficacy and compliance A comparative study of transvaginal drug delivery has been conducted in 12630 menstrual cycles of 1055 women, a multicenter clinical trial through “reproductively secured South-South cooperation.” This is a Third World work in the field of reproductive health Of scientists’ organizations) in nine developing countries, the study confirms the efficacy of the two oral medications when administered vaginally