<unk>  (INN), or<unk>  (BAN), is a steroidal progestin which was never marketed. A diacylated derivative,<unk> , is used as a hormonal contraceptive.
While<unk>  is sometimes used as a synonym for<unk> , what is usually being referred to is actually<unk>  and not<unk> .
Ethynodiol diacetate
Pyritinol
Gedocarnil
Lithium peroxide
Ferruginol
Pyrithyldione
Undecylenic acid
Oxabolone cipionate