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Specific Precautions and Warnings for Femtrace

Some of the warnings and precautions to be aware of prior to using Femtrace include the following:
  • For women who still have a uterus (who have not had a hysterectomy), taking Femtrace by itself (without a progestin) increases the risk of endometrial cancer (cancer of the lining of the uterus). Women who still have a uterus should take Femtrace with a progestin medication.
  • Let your healthcare provider know if you have abnormal vaginal bleeding (such as very heavy bleeding or bleeding between periods) while taking Femtrace, as this may be a sign of precancerous or cancerous changes in the uterus. Your healthcare provider can perform the necessary tests to rule out cancer.
  • Studies have shown that estrogen hormone replacement therapy (such as Femtrace) increases the risk of strokes and blood clots in the legs. Femtrace should never be used to prevent heart disease (see Hormone Replacement Therapy and Heart Health for more information), as it is not effective for this use.
  • Before you take Femtrace, your healthcare provider should make sure that you are appropriately treated for any risk factors for blood clots or heart disease (such as high blood pressure, high cholesterol, diabetes, obesity, or smoking).
  • Estrogen drugs (such as Femtrace) used with or without a progestin seem to increase the risk of dementia. In no case should Femtrace be used to prevent or treat dementia (it is not effective for this use).
  • When possible, Femtrace should be stopped four to six weeks before many surgeries, in order to help prevent blood clots.
  • Estrogen drugs (such as Femtrace) used with or without a progestin may increase the risk of breast cancer. Proper screening and monitoring (as determined by your healthcare provider), such as yearly mammograms and monthly breast self-exams, are recommended.
  • Women who take estrogen (such as Femtrace) have an increased risk for gallbladder disease.
  • Let your healthcare provider know right away if you notice any vision changes. This can signal a blood clot in the retina, a possible side effect of Femtrace.
  • Femtrace can cause high blood pressure (hypertension) or high triglycerides in some women. Your healthcare provider should monitor you for these problems.
  • If you have had jaundice (yellowing of the whites of the eyes or skin) due to estrogens or pregnancy in the past, it is possible that Femtrace will cause similar problems to recur. If this happens, your healthcare provider will probably advise you to stop taking Femtrace.
  • If you have an underactive thyroid (hypothyroidism), Femtrace may increase your body's requirement for thyroid hormones. Your healthcare provider should monitor you and adjust the dose of your thyroid medications as necessary.
  • Femtrace can cause fluid retention. This can cause problems for people with congestive heart failure (CHF) or kidney problems.
  • Femtrace should be used with caution in people who have low calcium levels in the blood (known medically as hypocalcemia).
  • It is not clear if Femtrace increases the risk of ovarian cancer. Some studies have shown an increased risk, while others have not.
  • Femtrace can make endometriosis symptoms worse.
  • Femtrace can interact with a number of different medications (see Femtrace Drug Interactions for more information).
  • Femtrace should not be used during pregnancy (see Femtrace and Pregnancy).
  • Femtrace does pass through breast milk. Therefore, if you are breastfeeding or plan to start breastfeeding, discuss this with your healthcare provider prior to taking the drug (see Femtrace and Breastfeeding).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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