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Medroxyprogesterone, also known as 6α-methyl-17α-hydroxyprogesterone or as 6α-methyl-17α-hydroxypregn-4-en-3,20-dione, is a synthetic pregnane steroid and a derivative of progesterone. [ 2 ] [ 3 ] It is specifically a derivative of 17α-hydroxyprogesterone with a methyl group at the C6α position.
Medroxyprogesterone acetate (MPA), also known as depot medroxyprogesterone acetate (DMPA) in injectable form and sold under the brand name Depo-Provera among others, is a hormonal medication of the progestin type. [10] [4] It is used as a method of birth control and as a part of menopausal hormone therapy.
Estradiol cypionate/medroxyprogesterone acetate (EC/MPA), sold under the brand name Cyclofem among others, is a form of combined injectable birth control. [2] It contains estradiol cypionate (EC), an estrogen, and medroxyprogesterone acetate (MPA), a progestin. [2] It is recommended for short-term use and is given once a month by injection into ...
Conjugated estrogens/medroxyprogesterone acetate (CEs/MPA), sold under the brand names Prempro and Premphase, is a combination product of conjugated equine estrogens (Premarin), an estrogen collected from horse urine, and medroxyprogesterone acetate (Provera), a progestogen, which is used in menopausal hormone therapy for the treatment of menopausal symptoms.
Examples of progestogens used in hormone therapy for transgender women include cyproterone acetate, medroxyprogesterone acetate, and progesterone. Progestogens, such as medroxyprogesterone and lynestrenol, are used in transgender men to help suppress menses. Progestogens have also been used to delay puberty in transgender boys and girls.
Medroxyprogesterone acetate (Provera) entered clinical use and became widely marketed, largely superseding the 17α-hydroxyprogesterone esters. [4] A variety of analogues of medroxyprogesterone acetate, such as chlormadinone acetate, cyproterone acetate, and megestrol acetate, were subsequently developed and introduced as well.
CICs are different from progestogen-only injectable contraceptives (POICs), such as depot medroxyprogesterone acetate (DMPA; brand names Depo-Provera, Depo-SubQ Provera 104) and norethisterone enantate (NETE; brand name Noristerat), which are not combined with an estrogen and are given once every two to three months instead of once a month. [2]
Medroxyprogesterone caproate (MPC) is a progestin and a progestogen ester which was synthesized in 1958 but was never marketed. [ 1 ] [ 2 ] It has been confused with hydroxyprogesterone caproate (OHPC) and medroxyprogesterone acetate (MPA) in a number of publications.