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(medroxyprogesterone acetate) Tablets, USP
CARDIOVASCULAR AND OTHER RISKS
The Women's Health Initiative (WHI) estrogen plus progestin substudy reported increased risks of myocardial infarction, stroke, invasive breast cancer, pulmonary emboli, and deep vein thrombosis (DVT) in postmenopausal women (50 to 79 years of age) during 5.6 years of treatment with daily oral conjugated estrogens (CE 0.625 mg) combined with medroxyprogesterone acetate (MPA 2.5 mg) relative to placebo. (See Clinical Studies and WARNINGS, Cardiovascular disorders and Malignant neoplasms, Breast cancer.)
The Women's Health Initiative Memory Study (WHIMS), a substudy of the WHI study, reported increased risk of developing probable dementia in postmenopausal women 65 years of age or older during 4 years of treatment with daily CE 0.625 mg combined with MPA 2.5 mg, relative to placebo. It is unknown whether this finding applies to younger postmenopausal women. (See Clinical Studies and WARNINGS, Dementia, and PRECAUTIONS, Geriatric Use.)
In the absence of comparable data, these risks should be assumed to be similar for other doses of CE and MPA and other combinations and dosage forms of estrogens and progestins. Because of these risks, estrogens with or without progestins should be prescribed at the lowest effective doses and for the shortest duration consistent with treatment goals and risks for the individual woman.
PROVERA® tablets contain medroxyprogesterone acetate, which is a derivative of progesterone. It is a white to off-white, odorless crystalline powder, stable in air, melting between 200 and 210°C. It is freely soluble in chloroform, soluble in acetone and in dioxane, sparingly soluble in alcohol and in methanol, slightly soluble in ether, and insoluble in water.
The chemical name for medroxyprogesterone acetate is pregn-4-ene-3, 20-dione, 17-(acetyloxy)-6-methyl-, (6α)-. The structural formula is:
Each PROVERA (medroxyprogesterone acetate tablets) tablet for oral administration contains 2.5 mg, 5 mg or 10 mg of medroxyprogesterone acetate and the following inactive ingredients: calcium stearate, corn starch, lactose, mineral oil, sorbic acid, sucrose, and talc. The 2.5 mg tablet contains FD&C Yellow No. 6.
What are the possible side effects of medroxyprogesterone (Provera)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any of these serious side effects:
- sudden numbness or weakness, especially on one side of the body;
- sudden headache, confusion, problems with vision, speech, or balance;
- chest pain, sudden cough, wheezing, rapid breathing, fast heart rate;
- pain or swelling in one or both legs;
- chest pain or heavy feeling, pain spreading to the arm or...
What are the precautions when taking medroxyprogesterone acetate tablets (Provera)?
Before taking medroxyprogesterone, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Some Canadian brands of this product may contain inactive ingredients (such as soybean), which can cause allergic reactions or other problems. Some people who are allergic to peanuts may also be allergic to soy. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: history of blood clots, history of bleeding in the brain, liver disease, cancer of the breast or other female organs, vaginal bleeding of unknown cause, a loss of pregnancy with some tissue remaining in the uterus ("missed abortion"), recent stroke or heart...
Last reviewed on RxList: 4/10/2008
This monograph has been modified to include the generic and brand name in many instances.
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