L02AB01 - megestrol (Antineoplastic and immunomodulating agents | Hormones and related agents | Progestogens)
G03DB04 - nomegestrol (Genito urinary system and sex hormones | Progestogens | Pregnadien derivatives)
G03AA14 - nomegestrol + estradiol (Genito urinary system and sex hormones | Hormonal contraceptives for systemic use | Progestogens and estrogens, fixed combinations)