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Depo-Estradiol

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Depo-Estradiol

DEPO®-ESTRADIOL
(estradiol cypionate) Injection, USP

WARNINGS:

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 currently 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 and 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 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

DEPO-Estradiol (estradiol cypionate injection) Injection contains estradiol cypionate for intramuscular use.

Each mL contains:

5 mg/mL—5 mg estradiol cypionate, 5.4 mg chlorobutanol anhydrous (chloral derivative) added as preservative; in 913 mg cottonseed oil.

Warning: Chlorobutanol may be habit forming. The structural formula is represented below:

DEPO®-ESTRADIOL
  (Estradiol cypionate) Structural Formula Illustration

DEPO-Estradiol (estradiol cypionate injection) contains an oil soluble ester of estradiol 17β. The chemical name for estradiol cypionate is estradiol 17-cyclopentanepropionate.

What are the possible side effects of estradiol injection?

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:

  • 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 headache, confusion, problems with vision, speech, or balance;
  • pain or swelling in your lower leg;
  • abnormal vaginal...

Read All Potential Side Effects and See Pictures of Depo-Estradiol »

What are the precautions when taking estradiol cypionate injection (Depo-Estradiol)?

Before using estradiol cypionate, tell your doctor or pharmacist if you are allergic to it; 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.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: vaginal bleeding of unknown cause, certain cancers (such as breast cancer, cancer of the uterus/ovaries), blood clots, stroke, heart disease (such as heart attack), liver disease, kidney disease, family medical history (especially breast lumps, cancer, blood clots, angioedema), blood clotting disorders (such as protein C or protein S deficiency), high blood pressure, diabetes, high blood cholesterol/triglyceride...

Read All Potential Precautions of Depo-Estradiol »

Last reviewed on RxList: 8/25/2009
This monograph has been modified to include the generic and brand name in many instances.

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