|Trade names||Neoprogestin, Nor-Progestelea|
|Other names||Vinylnortestosterone; SC-4641; 17α-Vinyl-19-nortestosterone; 17α-Vinylestr-4-en-17β-ol-3-one|
|Drug class||Progestin; Progestogen; Androgen; Anabolic steroid|
|Chemical and physical data|
|Molar mass||300.435 g/mol g·mol−1|
|3D model (JSmol)|
|Melting point||169 to 171 °C (336 to 340 °F) |
Norvinisterone, sold under the brand names Neoprogestin and Nor-Progestelea, is a progestin and androgen/anabolic steroid (AAS) medication which was used in Europe but is now no longer marketed. It is taken by mouth.
Norvinisterone is a progestin, or a synthetic progestogen, and hence is an agonist of the progesterone receptor, the biological target of progestogens like progesterone. It has androgenic activity.
Norvinisterone is a progestogen. It appears to be quite androgenic, with about one-third and one-fifth of the androgenic and anabolic activity, respectively, of nandrolone in animal bioassays.
Norvinisterone, also known as 17α-vinyl-19-nortestosterone or as 17α-vinylestr-4-en-17β-ol-3-one, is a synthetic estrane steroid and a derivative of testosterone and 19-nortestosterone. Analogues of norvinisterone include the progestin norgesterone and the AAS vinyltestosterone.
Norgesterone is no longer marketed and hence is no longer available in any country.