(17alpha)-17-Ethynyl-17-hydroxyestra-4,8(14),9-trien-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-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-19-nortestosterone;17alpha-Ethinylestra-4-en-17beta-ol-3-one;17alpha-Ethynyl-17-hydroxy-4-estren-3-one;17alpha-Ethynyl-17beta-hydroxy-19-norandrost-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-4-estren-17-ol-3-one;17beta-Hydroxy-19-norpregn-4-en-20-yn-3-one;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-17alpha-ethynyl-17beta-hydroxy-4-androsten-3-one;19-Nor-17alpha-ethynylandrosten-17beta-ol-3-one;19-Nor-17alpha-ethynyltestosterone;19-Nor-ethindrone;19-Norethisterone;4-Estren-17alpha-ethynyl-17beta-ol-3-one;Camila;Conludag;Micronor;Micronovum;Mini-pe;Mini-pill;Norcolut;Norethisteron;Norethisteronum;Noretisterona;Noriday;Norluten;Norlutin;Primolut-N;Utovlan;(17a)-17-Ethynyl-17-hydroxyestra-4,8(14),9-trien-3-one;(17α)-17-ethynyl-17-hydroxyestra-4,8(14),9-trien-3-one;17-a-Ethynyl-17-hydroxy-4-estren-3-one;17-α-ethynyl-17-hydroxy-4-estren-3-one;17-a-Ethynyl-19-norandrost-4-en-17-b-ol-3-one;17-α-ethynyl-19-norandrost-4-en-17-β-ol-3-one;17-a-Ethynyl-19-nortestosterone;17-α-ethynyl-19-nortestosterone;17-a-Ethynyl-4-estren-17-ol-3-one;17-α-ethynyl-4-estren-17-ol-3-one;17-b-Hydroxy-19-norpregn-4-en-20-yn-3-one;17-β-hydroxy-19-norpregn-4-en-20-yn-3-one;17-Hydroxy-19-nor-17-a-pregn-4-en-20-yn-3-one;17-Hydroxy-19-nor-17-α-pregn-4-en-20-yn-3-one;17-Hydroxy-19-nor-17a-pregn-4-en-20-yn-3-one;17-Hydroxy-19-nor-17α-pregn-4-en-20-yn-3-one;17a-Ethinyl-19-nortestosterone;17α-ethinyl-19-nortestosterone;17a-Ethinylestra-4-en-17b-ol-3-one;17α-ethinylestra-4-en-17β-ol-3-one;17a-Ethynyl-17-hydroxy-4-estren-3-one;17α-ethynyl-17-hydroxy-4-estren-3-one;17a-Ethynyl-17b-hydroxy-19-norandrost-4-en-3-one;17α-ethynyl-17β-hydroxy-19-norandrost-4-en-3-one;17a-Ethynyl-19-nor-4-androsten-17b-ol-3-one;17α-ethynyl-19-nor-4-androsten-17β-ol-3-one;17a-Ethynyl-19-norandrost-4-en-17b-ol-3-one;17α-ethynyl-19-norandrost-4-en-17β-ol-3-one;17a-Ethynyl-19-nortestosterone;17α-ethynyl-19-nortestosterone;17a-Ethynyl-4-estren-17-ol-3-one;17α-ethynyl-4-estren-17-ol-3-one;17b-Hydroxy-19-norpregn-4-en-20-yn-3-one;17β-hydroxy-19-norpregn-4-en-20-yn-3-one;19-Nor-17-a-ethynyl-17-b-hydroxy-4-androsten-3-one;19-Nor-17-α-ethynyl-17-β-hydroxy-4-androsten-3-one;19-Nor-17-a-ethynylandrosten-17-b-ol-3-one;19-Nor-17-α-ethynylandrosten-17-β-ol-3-one;19-Nor-17-a-ethynyltestosterone;19-Nor-17-α-ethynyltestosterone;19-Nor-17a-ethynyl-17b-hydroxy-4-androsten-3-one;19-Nor-17α-ethynyl-17β-hydroxy-4-androsten-3-one;19-Nor-17a-ethynylandrosten-17b-ol-3-one;19-Nor-17α-ethynylandrosten-17β-ol-3-one;19-Nor-17a-ethynyltestosterone;19-Nor-17α-ethynyltestosterone;4-Estren-17a-ethynyl-17b-ol-3-one;4-Estren-17α-ethynyl-17β-ol-3-one;(17-alpha)-17-Hydroxy-19-norpregn-4-en-20-yn-3-one;17-alpha-Ethynyl-17-beta-hydroxy-4-estren-3-one;17-Ethinyl-19-nor-testosterone;17-Ethynyl-17-hydroxyestr-4-en-3-one (acd/name 4.0);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;17alpha-Ethinyl-17alpha-ethinyl-19-nortestosterone;17alpha-Ethynyl-17-hydroxy-estr-4-en-3-one;17alpha-Ethynyl-17-hydroxyest-4-en-3-one;17alpha-Ethynyl-17beta-hydroxyestr-4-en-3-one;17alpha-Ethynyl-3-oxo-4-estren-17beta-ol;17alpha-Pregn-4-en-20-yn-3-one;17beta-Hydroxy-17alpha-ethynylestr-4-en-3-one;19-Nor-17-ethinyltestosterone;19-Norethinyltestosterone;Anhydrohydroxynorprogesterone;Anovule;Conludaf;ENT;Ethinyl-19-nortestosterone;Ethinylnortestosterone;Ethynylnortestosterone;Gestest;Menzol;Micronett;Minovlar;NET;Nor-q.d.;Nor-QD;Noralutin;Noresthisterone;Norethisterone;Norethyndron;Norethynodrone;Norfor;Norgestin;Norlutate;Norluton;Normapause;Norpregneninlone;Norpregneninolone;Primolut N;Proluteasi;Utovlar;Conceplan;Nor QD;Norethindrone, (1 beta)-isomer;Norcolute;Monogest;NorQD