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The test is performed by administering a progestogen, such as progesterone either as an intramuscular injection or oral medroxyprogesterone acetate (Provera). If the patient has sufficient serum estradiol (greater than 50 pg/mL), withdrawal bleeding should occur 2–7 days after the progestin is withdrawn, indicating that the patient's ...
Medroxyprogesterone acetate (brand names Depo-Provera, Provera, Depo-subQ Provera 104) [4] – 150 mg (intramuscularly) or 104 mg (subcutaneously) every 3 months [3] Norethisterone enanthate (brand names NET EN, Noristerat, Norigest, Doryxas) [ 5 ] – 200 mg (intramuscularly) every 2 months [ 3 ]
[11] [12] [129] Its most major brand names are Provera as oral tablets and Depo-Provera as an aqueous suspension for intramuscular injection. [11] [12] [129] A formulation of MPA as an aqueous suspension for subcutaneous injection is also available in the United States under the brand name Depo-SubQ Provera 104.
[1] [6] [81] In contrast to depot medroxyprogesterone acetate, no increase in VTE risk has been observed with moderately high doses of the related progestin chlormadinone acetate (10 mg/day for 18–20 days/cycle), though based on limited data. [94] [95]
Depot MPA (DMPA) and EC/MPA were developed by Upjohn in the 1960s. [12] [13] DMPA (brand name Depo-Provera) was introduced for use as a progestogen-only injectable contraceptive for the first time outside of the United States in 1969 and was subsequently approved for use in birth control in the United States in 1992.
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]
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Therefore most of the activity of injected MPA probably results from the parent drug rather than the hydrolysis product. Finally many papers claim to use MP but are really using MPA (see for example PMID 1119869, "Medroxyprogesterone was provided as Depo-Provera"). Boghog 18:48, 6 July 2010 (UTC)