Norgestimate

Norgestimate (INN, USAN, BAN) (brand names Ortho-Cyclen, Ortho Tri-Cyclen, Previfem, Sprintec, Prefest, others), also known as norgestrel acetate oxime, as well as 17α-ethynyl-18-methyl-19-nortestosterone 3-oxime 17β-acetate, is a steroidal progestin of the 19-nortestosterone group that is used in combination with ethinyl estradiol as an oral contraceptive and in combination with estradiol in menopausal hormone replacement therapy. It is a prodrug, mainly of norelgestromin, but also of levonorgestrel in small amounts.

Norgestimate

Norgestimate (INN, USAN, BAN) (brand names Ortho-Cyclen, Ortho Tri-Cyclen, Previfem, Sprintec, Prefest, others), also known as norgestrel acetate oxime, as well as 17α-ethynyl-18-methyl-19-nortestosterone 3-oxime 17β-acetate, is a steroidal progestin of the 19-nortestosterone group that is used in combination with ethinyl estradiol as an oral contraceptive and in combination with estradiol in menopausal hormone replacement therapy. It is a prodrug, mainly of norelgestromin, but also of levonorgestrel in small amounts.