Serious ill effects have not been reported following acute ingestion of large doses of estrogen-containing drug products by young children. Overdosage of estrogen may cause nausea and vomiting, and withdrawal bleeding may occur in females.

Activella (estradiol, norethindrone acetate) should not be used in women with any of the following conditions:

1. Undiagnosed abnormal genital bleeding.
2. Known, suspected, or history of cancer of the breast.
3. Known or suspected estrogen-dependent neoplasia.
4. Active deep vein thrombosis, pulmonary embolism, or history of these conditions.
5. Active or recent (e.g., within the past year) arterial thromboembolic disease (e.g., stroke, myocardial infarction).
6. Liver dysfunction or disease.
7. Known hypersensitivity to the ingredients of Activella (estradiol, norethindrone acetate) 1.0 mg/0.5 mg or Activella (estradiol, norethindrone acetate) 0.5 mg/0.1 mg.
8. Known or suspected pregnancy. There is no indication for Activella (estradiol, norethindrone acetate) in pregnancy. There appears to be little or no increased risk of birth defects in children born to women who have used estrogens and progestins from oral contraceptives inadvertently during early pregnancy. (See PRECAUTIONS.)

Last reviewed on RxList: 9/29/2008
This monograph has been modified to include the generic and brand name in many instances.