19-Nor-17-alpha-pregn-5(10)-en-20-yn-3-one, 17-hydorxy-, acetate, and 19-nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-3,17-diol Ethinyl estradiol mixed with norethynodrel Norethynodrel mixed with ethinyl estradiol RC8990100