<unk> , also known as norvinodrel or vinylestrenolone and sold under the brand name Vestalin, is a progestin medication which was formerly used in birth control pills for women but is now no longer marketed. It was used in combination with the estrogen ethinylestradiol. It is taken by mouth.<unk>  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 no androgenic activity.<unk>  was first described in 1962. It is no longer available.
Norgesterone
Progestogen
Progestogen 
Androgen
Methylestradiol
Vinyltestosterone
Progesterone
Progesterone 