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.

[7] Norvinisterone was used in hormonal contraception to prevent pregnancy.

[9] 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.

[2] Analogues of norvinisterone include the progestin norgesterone and the AAS vinyltestosterone.

[2][1] Norvinisterone was marketed under the brand names Neoprogestin and Nor-Progestelea by Syntex.