(-)-13-Ethyl-17-hydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one13-beta-Ethyl-17alpha-ethynyl-17beta-hydroxygon-4-en-3-one13-Ethyl-17-alpha-ethynyl-17-beta-hydroxy-4-gonen-3-one13-Ethyl-17-alpha-ethynylgon-4-en-17-beta-ol-3-one17-alpha-Ethinyl-13-beta-ethyl-17-beta-hydroxy-4-estren-3-one17-alpha-Ethynyl-13-ethyl-19-nortestosterone17-Ethynyl-18-methyl-19-nortestosterone17alpha-Ethynyl-13beta-ethyl-3-oxo-4-estren-17beta-ol17alpha-Ethynyl-17-hydroxy-18-methylestr-4-en-3-one17alpha-Ethynyl-18-homo-19-nortestosterone18-Methyl-17-alpha-ethynyl-19-nortestosterone18-MethylnorethisteroneD(-)-NorgestrelJadelleLevonelleLevonorgestrelumLevonovaMicrolutMicrolutonMicrovalMirenaNorLevoPlan bPostinor(+-)-NorgestrelOvrette(-)-13-Ethyl-17-hydroxy-18,19-dinor-17a-pregn-4-en-20-yn-3-one(-)-13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one13-b-Ethyl-17a-ethynyl-17b-hydroxygon-4-en-3-one13-Β-ethyl-17α-ethynyl-17β-hydroxygon-4-en-3-one13-Ethyl-17-a-ethynyl-17-b-hydroxy-4-gonen-3-one13-Ethyl-17-α-ethynyl-17-β-hydroxy-4-gonen-3-one13-Ethyl-17-a-ethynylgon-4-en-17-b-ol-3-one13-Ethyl-17-α-ethynylgon-4-en-17-β-ol-3-one17-a-Ethinyl-13-b-ethyl-17-b-hydroxy-4-estren-3-one17-Α-ethinyl-13-β-ethyl-17-β-hydroxy-4-estren-3-one17-a-Ethynyl-13-ethyl-19-nortestosterone17-Α-ethynyl-13-ethyl-19-nortestosterone17a-Ethynyl-13b-ethyl-3-oxo-4-estren-17b-ol17Α-ethynyl-13β-ethyl-3-oxo-4-estren-17β-ol17a-Ethynyl-17-hydroxy-18-methylestr-4-en-3-one17Α-ethynyl-17-hydroxy-18-methylestr-4-en-3-one17a-Ethynyl-18-homo-19-nortestosterone17Α-ethynyl-18-homo-19-nortestosterone18-Methyl-17-a-ethynyl-19-nortestosterone18-Methyl-17-α-ethynyl-19-nortestosteroneLevonorgestrel alcala brandLevonorgestrel hexal brandNorplantPaladin brand OF levonorgestrelVikelaWyeth brand OF levonorgestrelDuofemL-NorgestrelAventis pharma brand OF levonorgestrelBerlex brand OF levonorgestrelHRA brand 1 OF levonorgestrelHexal brand OF levonorgestrelLevonorgestrel paladin brandLevonorgestrel wyeth brandNorplant 2Alcala brand OF levonorgestrelCapronorCerazetD-NorgestrelHRA brand 2 OF levonorgestrelNorplant-2Schering brand 3 OF levonorgestrelL NorgestrelD NorgestrelLevonorgestrel berlex brandNorgestonNorplant2Schering brand 1 OF levonorgestrelSchering brand 2 OF levonorgestrelWomen's capital brand OF levonorgestrelLevonorgestrel