17alpha-Hydroxy-19-norpregn-5(10)-en-20-yn-3-one mixt. with (17alpha)-3-methoxy-19-norpregna-1,3,5(10)-trien-20-yn-17-ol 19-Nor-17-alpha-pregn-5(10)-en-20-yn-3-one, 17-hydroxy- mixed with 3-methoxy-19-nor-17-alpha-pregna-1,3,5(10)-trien-20-yn-17-ol 8015-30-3 Conovid Enovid Enovid-E Enovid-R Ethinylestradiol 3-methyl ether and norethynodrel (1:50) Infecundin Mestranol mixed with norethynodrel Norethynodrel - mestranol mixture Norethynodrel and ethinylestradiol 3-methyl ether (50:1) Norethynodrel mixed with mestranol Norethynodrel mixture with mestranol Norethynodrel-mestranol Sequelan