"(17-alpha)-17-Hydroxy-19-norpregn-4-en-20-yn-3-one", "(17alpha)-17-Ethynyl-17-hydroxyestra-4,8(14),9-trien-3-one", "17-alpha-Ethynyl-17-beta-hydroxy-4-estren-3-one", "17-alpha-Ethynyl-17-hydroxy-4-estren-3-one", "17-alpha-Ethynyl-19-norandrost-4-en-17-beta-ol-3-one", "17-alpha-Ethynyl-19-nortestosterone", "17-alpha-Ethynyl-4-estren-17-ol-3-one", "17-beta-Hydroxy-19-norpregn-4-en-20-yn-3-one", "17-Ethinyl-19-nor-testosterone", "17-Ethynyl-17-hydroxyestr-4-en-3-one", "17-Ethynyl-17beta-hydroxyestr-4-en-3-one", "17-Ethynyl-19-Nortestosterone", "17-Hydroxy-(17alpha)-19-Norpregn-4-en-20-yn-3-one", "17-Hydroxy-17-alpha-19-Norpregn-4-en-20-yn-3-one", "17-Hydroxy-19-nor-17-alpha-pregn-4-en-20-yn-3-one", "17-Hydroxy-19-Nor-17alpha-pregn-4-en-20-yn-3-one", "17alpha-Ethinyl-17alpha-Ethinyl-19-nortestosterone", "17alpha-Ethinyl-19-Nortestosterone", "17alpha-Ethinylestra-4-en-17beta-ol-3-one", "17alpha-Ethynyl-17-hydroxy-4-estren-3-one", "17alpha-ethynyl-17-hydroxy-Estr-4-en-3-one", "17alpha-Ethynyl-17-hydroxyest-4-en-3-one", "17alpha-Ethynyl-17beta-hydroxy-19-norandrost-4-en-3-one", "17alpha-Ethynyl-17beta-hydroxyestr-4-en-3-one", "17alpha-Ethynyl-19-nor-4-androsten-17beta-ol-3-one", "17alpha-Ethynyl-19-norandrost-4-en-17beta-ol-3-one", "17alpha-Ethynyl-19-nortestosterone", "17alpha-Ethynyl-3-oxo-4-estren-17beta-ol", "17alpha-Ethynyl-4-estren-17-ol-3-one", "17alpha-pregn-4-en-20-yn-3-one", "17beta-Hydroxy-17alpha-ethynylestr-4-en-3-one", "17beta-Hydroxy-19-norpregn-4-en-20-yn-3-one", "17α-ethinyl-19-nortestosterone", "19-Nor-17-alpha-ethynyl-17-beta-hydroxy-4-androsten-3-one", "19-Nor-17-alpha-ethynylandrosten-17-beta-ol-3-one", "19-Nor-17-alpha-ethynyltestosterone", "19-Nor-17-ethinyltestosterone", "19-Nor-17alpha-Ethynyl-17beta-hydroxy-4-androsten-3-one", "19-Nor-17alpha-Ethynylandrosten-17beta-ol-3-one", "19-Nor-17alpha-ethynyltestosterone", "19-nor-17α-ethynyltestosterone", "19-Nor-ethindrone", "19-Norethinyltestosterone", "19-Norethisterone", "4-Estren-17alpha-ethynyl-17beta-ol-3-one", "Anhydrohydroxynorprogesterone", "Anovule", "Aygestin", "Camila", "Conludaf", "Conludag", "ENT", "Errin", "Ethinyl-19-nortestosterone", "Ethinylnortestosterone", "Ethynylnortestosterone", "Gestest", "HEATHER", "Jencycla", "Jolivette", "LYZA", "Menzol", "Micronett", "Micronor", "Micronovum", "Mini-Pe", "Mini-pill", "Minovlar", "NET", "Nor-Q.D.", "Nor-QD", "Noralutin", "Norcolut", "Noresthisterone", "Norethisteron", "Norethisterone", "Norethisteronum", "Norethyndron", "Norethynodrone", "Noretisterona", "Norfor", "Norgestin", "Noriday", "Norlutate", "Norluten", "Norlutin", "Norluton", "NORLYROC", "Normapause", "Norpregneninlone", "Norpregneninolone", "Primolut N", "Primolut-N", "Proluteasi", "Utovlan", "Utovlar"