Pregnanes | Estranes | Gonanes | |
---|---|---|---|
2nd generation | 3rd generation | ||
Chlormadinone acetate | Norethindrone acetate | dl-Norgestrel | Desogestrel |
Cyproterone acetate | Ethynodiol diacetate | Levonorgestrel | Gestodene |
Nomegestrol, Nestorone | Lynestrenol | Norgestimate | |
Norethynodrel |