Estrogens increase the risk of endometrial cancer in postmenopausal women. (See Endometrial Cancer under Cautions.)
Do not use estrogens with or without progestins for prevention of cardiovascular disease (see Cardiovascular Risk Reduction under Uses and Cardiovascular Disorders under Cautions) or dementia (see Alzheimer's Disease under Uses).
The Women’s Health Initiative (WHI) study of estrogen alone reported increased risks of stroke and DVT in postmenopausal women receiving approximately 7 years of therapy with conjugated estrogens 0.625 mg daily.
The WHI study of estrogen plus progestin reported increased risks of MI, stroke, invasive breast cancer, pulmonary embolism, and DVT in postmenopausal women receiving >5 years of therapy with conjugated estrogens 0.625 mg in conjunction with medroxyprogesterone acetate 2.5 mg daily.
The WHI Memory Study (WHIMS) reported increased risk of developing probable dementia in postmenopausal women ≥65 years of age receiving long-term therapy (4–5 years) with conjugated estrogens in conjunction with medroxyprogesterone acetate or conjugated estrogen alone. Not known whether this finding also applies to younger postmenopausal women.
Other dosages of conjugated estrogens with medroxyprogesterone and other combinations or dosage forms of estrogens with progestin not studied in WHI trials; in absence of comparable data, assume risks are similar.
Prescribe estrogens (with or without progestins) at the lowest effective dose and for the shortest duration consistent with treatment goals and risks for the individual woman.
What is this medicine?
ESTRADIOL (es tra DYE ole) is an estrogen. It is used to treat the symptoms of low hormone levels in menopausal women. It is used to treat women who have had their ovaries removed or who have ovaries that do not work well. It helps to treat hot flashes and vaginal problems. It is also used to treat men with some kinds of prostate cancer.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
What should I tell my health care provider before I take this medicine?
They need to know if you have or ever had any of these conditions:
This medicine is for injection into a muscle. It is given by a health care professional in a hospital or clinic setting.
A patient information sheet for the product will be given with each prescription and refill. Read this sheet carefully each time. The sheet may change frequently.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
What if I miss a dose?
It is important not to miss your dose. Call your doctor or health care professional if you are unable to keep an appointment.
What may interact with this medicine?
Do not take this medicine with any of the following medications:
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while using this medicine?
Visit your doctor or health care professional for regular checks on your progress. You will need a regular breast and pelvic exam and Pap smear while on this medicine. You should also discuss the need for regular mammograms with your health care professional, and follow his or her guidelines for these tests.
This medicine can make your body retain fluid, making your fingers, hands, or ankles swell. Your blood pressure can go up. Contact your doctor or health care professional if you feel you are retaining fluid.
Women should inform their doctor if they wish to become pregnant or think they might be pregnant. There is a potential for serious side effects to an unborn child. Talk to your health care professional or pharmacist for more information.
Smoking increases the risk of getting a blood clot or having a stroke while you are taking this medicine, especially if you are more than 35 years old. You are strongly advised not to smoke.
If you wear contact lenses and notice visual changes, or if the lenses begin to feel uncomfortable, consult your eye doctor or health care professional.
This medicine can increase the risk of developing a condition (endometrial hyperplasia) that may lead to cancer of the lining of the uterus. Taking progestins, another hormone drug, with this medicine lowers the risk of developing this condition. Therefore, if your uterus has not been removed (by a hysterectomy), your doctor may prescribe a progestin for you to take together with your estrogen. You should know, however, that taking estrogens with progestins may have additional health risks. You should discuss the use of estrogens and progestins with your health care professional to determine the benefits and risks for you.
If you are going to have surgery, let your doctor know you are receiving estrogen. Consult your health care professional for advice before you schedule the surgery.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
symptoms of vaginal infection like itching, irritation or unusual discharge
unusually weak or tired
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Where should I keep my medicine?
This drug is given in a hospital or clinic and will not be stored at home.
NOTE:This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.
Remember, keep this and all other medicines out of the reach of children,
never share your medicines with others, and use this medication only for the indication prescribed.
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