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Estratest

"Oct. 24, 2012 -- Women who take hormones within five years of menopause may have a slightly lower risk of Alzheimer's disease compared to women who don't ever take them, a new study shows.

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Estratest

ESTRATEST® (esterified estrogens and methyltestosterone)
and
ESTRATEST® H.S.
(esterified estrogens and methyltestosterone) Tablets

ESTROGENS INCREASE THE RISK OF ENDOMETRIAL CANCER

Close clinical surveillance of all women taking estrogens is important. Adequate diagnostic measures, including endometrial sampling when indicated, should be undertaken to rule out malignancy in all cases of undiagnosed persistent or recurring abnormal vaginal bleeding. There is no evidence that the use of "natural" estrogens results in a different endometrial risk profile than synthetic estrogens at equivalent estrogen doses. (See WARNINGS, Malignant Neoplasms, Endometrial Cancer.)

CARDIOVASCULAR AND OTHER RISKS

Estrogens with or without progestins should not be used for the prevention of cardiovascular disease. (See WARNINGS, Cardiovascular Disorders.)

The Women's Health Initiative (WHI) study reported increased risks of myocardial infarction, stroke, invasive breast cancer, pulmonary emboli, and deep vein thrombosis in postmenopausal women (50 to 79 years of age) during 5 years of treatment with oral conjugated estrogens (CE 0.625 mg) combined with medroxyprogesterone acetate (MPA 2.5 mg) relative to placebo. (See CLINICAL PHARMACOLOGY, Clinical Studies.)

The Women's Health Initiative Memory Study (WHIMS), a substudy of WHI, reported increased risk of developing probable dementia in postmenopausal women 65 years of age or older during 4 years of treatment with oral conjugated estrogens plus medroxyprogesterone acetate relative to placebo. It is unknown whether this finding applies to younger postmenopausal women or to women taking estrogen alone therapy. (See CLINICAL PHARMACOLOGY, Clinical Studies.)

Other doses of oral conjugated estrogens with medroxyprogesterone acetate, and other combinations and dosage forms of estrogens and progestins were not studied in the WHI clinical trials and, in the absence of comparable data, these risks should be assumed to be similar. 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.

DRUG DESCRIPTION

ESTRATEST (esterified estrogens and methyltestosterone) ® Tablets: Each dark green, capsule shaped, sugar-coated oral tablet contains: 1.25 mg of Esterified Estrogens, USP and 2.5 mg of Methyltestosterone, USP.

ESTRATEST (esterified estrogens and methyltestosterone) ® H.S. (Half-Strength) Tablets: Each light green, capsule shaped, sugar-coated oral tablet contains: 0.625 mg of Esterified Estrogens, USP and 1.25 mg of Methyltestosterone, USP.

Esterified Estrogens

Esterified Estrogens, USP is a mixture of the sodium salts of the sulfate esters of the estrogenic substances, principally estrone, that are of the type excreted by pregnant mares. Esterified Estrogens contain not less than 75.0 percent and not more than 85.0 percent of sodium estrone sulfate, and not less than 6.0 percent and not more than 15.0 percent of sodium equilin sulfate, in such proportion that the total of these two components is not less than 90.0 percent.

Methyltestosterone

Methyltestosterone, USP is an androgen. Androgens are derivatives of cyclopentano-perhydrophenanthrene. Endogenous androgens are C-19 steroids with a side chain at C-17, and with two angular methyl groups. Testosterone is the primary endogenous androgen. Fluoxymesterone and methyltestosterone are synthetic derivatives of testosterone.

Methyltestosterone is a white to light yellow crystalline substance that is virtually insoluble in water but soluble in organic solvents. It is stable in air but decomposes in light.

Methyltestosterone structural formula:

ESTRATEST® H.S.<sup>‡</sup> (Esterified Estrogens and Methyltestosterone) Tablets Structural Formula Illustration

C20H30O2..........302.46
Androst-4-en-3-one, 17-hydroxy-17-methyl-, (17•)-

ESTRATEST (esterified estrogens and methyltestosterone) and ESTRATEST (esterified estrogens and methyltestosterone) H.S. Tablets contain the following inactive ingredients: acacia, acetylated monoglycerides, calcium carbonate, carboxymethylcellulose sodium, carnauba wax NF, citric acid, colloidal silicon dioxide, gelatin, iron oxide, lactose, magnesium stearate, methylparaben, microcrystalline cellulose, pharmaceutical glaze, povidone, propylene glycol, propylparaben, shellac glaze, sodium benzoate, sodium bicarbonate, sorbic acid, starch, sucrose, talc, titanium dioxide, and tribasic calcium phosphate.

ESTRATEST (esterified estrogens and methyltestosterone) Tablets also contain: FD&C Blue No. 1 Lake, FD&C Yellow No. 6 Lake, and D&C Yellow No. 10 Lake.

ESTRATEST (esterified estrogens and methyltestosterone) H.S. Tablets also contain: D&C Yellow No. 10 Lake, FD&C Blue No. 1 Lake, FD&C Blue No. 2 Lake, FD&C Yellow No. 6 Lake, and FD&C Red No. 40 Lake.

What are the possible side effects of esterified estrogens and methyltestosterone?

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 a serious side effect such as:

  • chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling;
  • sudden numbness or weakness, especially on one side of the body;
  • sudden severe headache, confusion, problems with vision, speech, or balance;
  • swelling, rapid weight gain;
  • confusion,...

Read All Potential Side Effects and See Pictures of Estratest »

What are the precautions when taking esterified estrogens and methyltestosterone (Estratest)?

Before taking this medication, tell your doctor or pharmacist if you are allergic to methyltestosterone or estrogen; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. 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: vaginal bleeding of unknown cause, certain cancers (e.g., breast cancer, cancer of the uterus or ovaries), blood clotting disorders (such as protein C or protein S deficiency), current/history of blood clots (such as in the legs, eyes, lungs), history of stroke or heart attack, liver problems.

Before using this medication, tell your...

Read All Potential Precautions of Estratest »

This product has not obtained FDA pre-market approval applicable for new drugs.

What are the possible side effects of esterified estrogens and methyltestosterone?

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 a serious side effect such as:

  • chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling;
  • sudden numbness or weakness, especially on one side of the body;
  • sudden severe headache, confusion, problems with vision, speech, or balance;
  • swelling, rapid weight gain;
  • confusion,...

Read All Potential Side Effects and See Pictures of Estratest »

What are the precautions when taking esterified estrogens and methyltestosterone (Estratest)?

Before taking this medication, tell your doctor or pharmacist if you are allergic to methyltestosterone or estrogen; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. 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: vaginal bleeding of unknown cause, certain cancers (e.g., breast cancer, cancer of the uterus or ovaries), blood clotting disorders (such as protein C or protein S deficiency), current/history of blood clots (such as in the legs, eyes, lungs), history of stroke or heart attack, liver problems.

Before using this medication, tell your...

Read All Potential Precautions of Estratest »

Last reviewed on RxList: 7/18/2008
This monograph has been modified to include the generic and brand name in many instances.

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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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