Conjugated Estrogens/bazedoxifene
Generic Name: conjugated estrogens/bazedoxifene
Brand Names:
Duavee
11 DESCRIPTION DUAVEE (conjugated estrogens/bazedoxifene), contains conjugated estrogens with bazedoxifene, an estrogen agonist/antagonist. Conjugated estrogens are purified from pregnant mares' urine and consist of the sodium salts of water-soluble estrogen sulfates blended to represent the average composition of material derived from pregnant mares' urine.
Overview
11 DESCRIPTION DUAVEE (conjugated estrogens/bazedoxifene), contains conjugated estrogens with bazedoxifene, an estrogen agonist/antagonist. Conjugated estrogens are purified from pregnant mares' urine and consist of the sodium salts of water-soluble estrogen sulfates blended to represent the average composition of material derived from pregnant mares' urine.
Uses
1 INDICATIONS AND USAGE DUAVEE is indicated in women with a uterus for: DUAVEE is a combination of conjugated estrogens with an estrogen agonist/antagonist indicated for treatment of the following conditions in women with a uterus: • Treatment of moderate to severe vasomotor symptoms associated with menopause ( 1.1 ) • Prevention of postmenopausal osteoporosis ( 1.2 ) Limitation of Use : DUAVEE should be used for the shortest duration consistent with treatment goals and risks for the individual woman ( 1.3 ) 1.1 Treatment of Moderate to Severe Vasomotor Symptoms Associated with Menopause 1.2 Prevention of Postmenopausal Osteoporosis 1.3 Important Limitations of Use • Use DUAVEE for the shortest duration consistent with treatment goals and risks for the individual woman.
Dosage
2 DOSAGE AND ADMINISTRATION • Take one tablet orally once daily ( 2 ) 2.1 Treatment of Moderate to Severe Vasomotor Symptoms Associated with Menopause The recommended dosage is one DUAVEE tablet daily. 2.2 Prevention of Postmenopausal Osteoporosis The recommended dosage is one DUAVEE tablet daily. 2.3 General Dosing Information Take DUAVEE once daily, without regard to meals. Tablets should be swallowed whole. 2.4 Recommendations for Calcium and Vitamin D Supplementation Women taking DUAVEE for prevention of postmenopausal osteoporosis should add supplemental calcium and/or vitamin D to their diet if daily intake is inadequate.
Side Effects
6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the label: • Cardiovascular Disorders [see Warnings and Precautions (5.2) ] • Malignant Neoplasms [see Warnings and Precautions (5.3) ] • Gallbladder Disease [see Warnings and Precautions (5.5) ] • Hypertriglyceridemia [see Warnings and Precautions (5.8) ] In four prospective, randomized, placebo-controlled trials the common adverse reactions (incidence ≥ 5%) were muscle spasms, nausea, diarrhea, dyspepsia, abdominal pain upper, oropharyngeal pain, dizziness, and neck pain ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .
Interactions
7 DRUG INTERACTIONS 7.1 Cytochrome P450 (CYP) In vitro and in vivo studies have shown that estrogens are metabolized partially by cytochrome P450 3A4 (CYP3A4). Concomitant administration of itraconazole, a strong CYP3A4 inhibitor, with DUAVEE, resulted in increases in bazedoxifene exposure (40%) and, to a lesser extent, conjugated estrogens exposure (9% for baseline-adjusted total estrone, 5% for total equilin), compared to DUAVEE alone [see Pharmacokinetics (12.3) ] . Inducers of CYP3A4, such as St. John's Wort (Hypericum perforatum) preparations, phenobarbital, carbamazepine, and rifampin, may reduce plasma concentrations of some estrogens, possibly resulting in a decrease in therapeutic effects and/or changes in the uterine bleeding profile.
Warnings
WARNING: ENDOMETRIAL CANCER, CARDIOVASCULAR DISORDERS, AND PROBABLE DEMENTIA • Women taking DUAVEE should not take additional estrogens [see Warnings and Precautions (5.1) ] • There is an increased risk of endometrial cancer in a woman with a uterus who uses unopposed estrogens. DUAVEE has been shown to reduce the risk of endometrial hyperplasia, which may be a precursor to endometrial cancer. 5 WARNINGS AND PRECAUTIONS • Women taking DUAVEE should not take progestins, additional estrogens or additional estrogen agonist/antagonists ( 5.1 ) • Cardiovascular disorders, including venous thromboembolism, pulmonary embolism, stroke, and retinal vascular thrombosis ( 5.2 , 5.6 ) • Malignant neoplasms, including endometrial cancer, breast cancer, and ovarian cancer ( 5.3 ) • Estrogens increase the risk of gallbladder disease ( 5.5 ) • Discontinue estrogen if loss of vision, severe hypertriglyceridemia or cholestatic jaundice occurs ( 5.6 , 5.8 , 5.9 ) • Monitor thyroid function in women on thyroid replacement therapy ( 5.10 , 5.17 ) 5.1 Drugs Containing Progestins, Estrogens or Estrogen Agonist/Antagonists DUAVEE contains conjugated estrogens and bazedoxifene, an estrogen agonist/antag... 4 CONTRAINDICATIONS DUAVEE is contraindicated in women with any of the following conditions: • Undiagnosed abnormal uterine bleeding • Known, suspected, or past history of breast cancer • Known or suspected estrogen-dependent neoplasia • Active deep venous thrombosis, pulmonary embolism, or history of these conditions • Active arterial thromboembolic disease (for example, stroke, myocardial infarc...
Pregnancy
8.1 Pregnancy Risk Summary DUAVEE is contraindicated for use in pregnant women and is not indicated for use in females of reproductive potential [see Contraindications (4) , Warnings and Precautions (5.15) ]. Conjugated Estrogens (CE) There are no data with the use of conjugated estrogens in pregnant women; however, epidemiologic studies and meta-analyses have not found an increased risk of genital and non-genital birth defects (including cardiac anomalies and limb-reduction defects) following exposure to combined hormonal contraceptives before conception or during early pregnancy.
Storage
Storage Blisters DUAVEE tablets should be stored at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F). See USP Controlled Room Temperature. Dispense product in the original package. Tablets should not be removed from blisters until immediately before use. Protect from moisture. After opening foil pouch, product must be used within 60 days.
Frequently Asked Questions
What is Conjugated Estrogens/bazedoxifene used for?▼
1 INDICATIONS AND USAGE DUAVEE is indicated in women with a uterus for: DUAVEE is a combination of conjugated estrogens with an estrogen agonist/antagonist indicated for treatment of the following conditions in women with a uterus: • Treatment of moderate to severe vasomotor symptoms associated with menopause ( 1.1 ) • Prevention of postmenopausal osteoporosis ( 1.2 ) Limitation of Use : DUAVEE should be used for the shortest duration consistent with treatment goals and risks for the individual woman ( 1.3 ) 1.1 Treatment of Moderate to Severe Vasomotor Symptoms Associated with Menopause 1.2 Prevention of Postmenopausal Osteoporosis 1.3 Important Limitations of Use • Use DUAVEE for the shortest duration consistent with treatment goals and risks for the individual woman.
What are the side effects of Conjugated Estrogens/bazedoxifene?▼
6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the label: • Cardiovascular Disorders [see Warnings and Precautions (5.2) ] • Malignant Neoplasms [see Warnings and Precautions (5.3) ] • Gallbladder Disease [see Warnings and Precautions (5.5) ] • Hypertriglyceridemia [see Warnings and Precautions (5.8) ] In four prospective, randomized, placebo-controlled trials the common adverse reactions (incidence ≥ 5%) were muscle spasms, nausea, diarrhea, dyspepsia, abdominal pain upper, oropharyngeal pain, dizziness, and neck pain ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .
Can I take Conjugated Estrogens/bazedoxifene during pregnancy?▼
8.1 Pregnancy Risk Summary DUAVEE is contraindicated for use in pregnant women and is not indicated for use in females of reproductive potential [see Contraindications (4) , Warnings and Precautions (5.15) ]. Conjugated Estrogens (CE) There are no data with the use of conjugated estrogens in pregnant women; however, epidemiologic studies and meta-analyses have not found an increased risk of genital and non-genital birth defects (including cardiac anomalies and limb-reduction defects) following exposure to combined hormonal contraceptives before conception or during early pregnancy.
What are the important warnings for Conjugated Estrogens/bazedoxifene?▼
WARNING: ENDOMETRIAL CANCER, CARDIOVASCULAR DISORDERS, AND PROBABLE DEMENTIA • Women taking DUAVEE should not take additional estrogens [see Warnings and Precautions (5.1) ] • There is an increased risk of endometrial cancer in a woman with a uterus who uses unopposed estrogens. DUAVEE has been shown to reduce the risk of endometrial hyperplasia, which may be a precursor to endometrial cancer. 5 WARNINGS AND PRECAUTIONS • Women taking DUAVEE should not take progestins, additional estrogens or additional estrogen agonist/antagonists ( 5.1 ) • Cardiovascular disorders, including venous thromboembolism, pulmonary embolism, stroke, and retinal vascular thrombosis ( 5.2 , 5.6 ) • Malignant neoplasms, including endometrial cancer, breast cancer, and ovarian cancer ( 5.3 ) • Estrogens increase the risk of gallbladder disease ( 5.5 ) • Discontinue estrogen if loss of vision, severe hypertriglyceridemia or cholestatic jaundice occurs ( 5.6 , 5.8 , 5.9 ) • Monitor thyroid function in women on thyroid replacement therapy ( 5.10 , 5.17 ) 5.1 Drugs Containing Progestins, Estrogens or Estrogen Agonist/Antagonists DUAVEE contains conjugated estrogens and bazedoxifene, an estrogen agonist/antag... 4 CONTRAINDICATIONS DUAVEE is contraindicated in women with any of the following conditions: • Undiagnosed abnormal uterine bleeding • Known, suspected, or past history of breast cancer • Known or suspected estrogen-dependent neoplasia • Active deep venous thrombosis, pulmonary embolism, or history of these conditions • Active arterial thromboembolic disease (for example, stroke, myocardial infarc...
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.