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Medroxyprogesterone Acetate
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Steroida Progestin Powder Medroxyprogesterone Acetate

Chlormadinone acetate

Product name: Chlormadinone acetate

CAS Registry Number: 302-22-7

Assay: 98%

Molecular Formula: C23H29ClO4

Molecular weight: 404.93

Appearance: White or slightly yellow crystalline powder


Medroxyprogesterone acetate (INN, USAN, BAN), also known as 17α -hydroxy-6α -methylprogesterone acetate, and commonly abbreviated as MPA, is a steroidal progestin, a synthetic variant of the steroid hormone progesterone. It is used as a contraceptive, in hormone replacement therapy and for the treatment of endometriosis as well as several other indications.

MPA is a more potent derivative of its parent compound medroxyprogesterone (MP). While medroxyprogesterone is sometimes used as a synonym for medroxyprogesterone acetate, [3] what is almost always being referred to is MPA and not MP. [4] It is on the World Health Organization's List of Essential Medicines, a list of the most important medication needed in a basic health system.


In females, the most common use of Medroxyprogesterone is an extremely effective contraceptive and also as the progestin component of menopausal hormone replacement therapy to prevent endometrial hyperplasia and cancer. MPa is also used as a treatment for endometriosis, amenorrhea and dysmenorrhea. MPa, along with other progestins were developed to allow the hormones to be taken orally.

In males, Medroxyprogesterone has been used to treat benign prostatic hyperplasia, as a palliative appetite stimulant for cancer patients, and at high doses (800 mg per day) to treat hormone-dependent cancers of primarily the breast