[Nomegestrol acetate: clinical pharmacology].
Progestogens are used in clinical practice in some conditions. Their effects depend on their chemical structure, pharmacokinetics, pharmacodynamics, with important differences among various progestogens. Generally, progestins are classified according to their parent molecule, of which often they keep some features. Derivatives of 19-nor-progesterone are characterized by high selectivity of action on progestin receptor. In particular, nomegestrol acetate (NomAc) shows an important progestational potency, neutral gluco-lipid profile, and antigonadotropic activity. It is used for treating menstrual cycle disorders and for hormone replacement therapy in menopause in association with an estrogen. In future, thanks to its antigonadotropic activity, NomAc will be used in estroprogestin combinations in fertile women, thus taking advantage of its tolerability profile and obtaining numerous non-contraceptive benefits as well.
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Dipartimento di Ginecologia Endocrinologica, Fisiopatologia della Menopausa e Osteoporosi, IDI-IRCCS, Roma, Italia. lellostefano@libero.it
D001682:Biological Availability; D001941:Breast Diseases / Q000188:drug therapy; D004359:Drug Therapy, Combination; D004958:Estradiol / Q000008:administration & dosage / Q000031:analogs & derivatives; D005260:Female; D020249:Hormone Replacement Therapy; D006801:Humans; D007030:Hypothalamo-Hypophyseal System / Q000187:drug effects; D008658:Inactivation, Metabolic; D008535:Megestrol / Q000009:adverse effects / Q000737:chemistry / Q000493:pharmacokinetics / Q000494:pharmacology* / Q000627:therapeutic use; D008593:Menopause; D008599:Menstruation Disturbances / Q000188:drug therapy; D015394:Molecular Structure; D009649:Norpregnadienes / Q000009:adverse effects / Q000737:chemistry / Q000493:pharmacokinetics / Q000494:pharmacology* / Q000627:therapeutic use; D034445:Ovulation Inhibition / Q000187:drug effects; D011485:Protein Binding
D009649:Norpregnadienes; D004958:Estradiol; C038501:nomegestrol acetate; D008535:Megestrol