Tên tương tự: Levonorgestrel; (17α)-13-Ethyl-17-hydroxy-18,19-dinorpregn-4-en-20-yn-3-one; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one; (-)-Norgestrel; 13-Ethyl-17-ethynyl-17β-hydroxy-4-gonen-3-one; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one; 13-Ethyl-17α-ethynyl-17-hydroxygon-4-en-3-one; 13-Ethyl-17α-ethynylgon-4-en-17β-ol-3-one; 13β-Ethyl-17α-ethynyl-17β-hydroxygon-4-en-3-one; 17α-Ethynyl-13-ethyl-19-nortestosterone; 17α-Ethynyl-13β-ethyl-3-oxo-4-estren-17β-ol; 17α-Ethynyl-17-hydroxy-18-methylestr-4-en-3-one; 17α-Ethynyl-18-homo-19-nortestosterone; 17α-Ethynyl-18-methyl-19-nortestosterone; 17β-Hydroxy-18-methyl-19-nor-17α-pregn-4-en-20-yn-3-one; 18-Methyl-17α-ethynyl-19-nortestosterone; 18-Methylnorethindrone; 19-Nortestosterone, 17-ethynyl-18-methyl-; D-(-)-Norgestrel; D-Norgestrel; Dexnorgestrel; Femilis; Femilis Slim; Follistrel; Jadelle; Levonorgestrel; Levonova; Lng-IUS; Microlut; Microluton; Microval; Mirena; Norgeston; Norgestrelem; Norlevo; Norplant; Norplant 2; Norplant II; Postinor 2; Wy 5104; d-(17α)-17-Hydroxy-13-ethyl-18,19-dinorpregn-4-en-20-yn-3-one