19-Norpregn-4-en-20-yn-3-one, 17-(acetyloxy)-, (17α)-
19-Nor-17α-pregn-4-en-20-yn-3-one, 17-hydroxy-, acetate
(17α)-17-(Acetyloxy)-19-norpregn-4-en-20-yn-3-one
17-Acetoxy-19-nor-17α-pregn-4-en-20-yn-3-one
17α-Ethinyl-19-nortestosterone acetate
17β-Hydroxy-19-nor-17α-pregn-4-en-20-yn-3-one acetate
Norethindrone acetate
Norethisteron acetate
Norethisterone acetate
Norethynyltestosterone acetate
Norethysterone acetate
Norlutate
Norlutin acetate
17α-Ethynyl-19-nortestosterone acetate
17α-Ethinyl-19-nortestosterone 17β-acetate
17α-Ethinyl-4-estrene-17β-ol-acetate-3-one
17β-Acetoxy-19-nor-17α-pregn-4-en-20-yn-3-one
19-Norethynyltestosterone acetate
Norethindrone 17-acetate
19-Norethisterone acetate
17β-Acetoxy-17α-ethinyl-4-estren-3-one
Norlutin A
Orlutate
Primolut-Nor
SH 420
Norethisterone 17-acetate
Milli-Anovlar
Progylut
Gynophase
Gynovlane
Miniphase
Aygestin
Milligynon
NSC 22844
Estalis