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Premarin

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Premarin

Premarin

INDICATIONS

PREMARIN therapy is indicated in the:

  1. Treatment of moderate to severe vasomotor symptoms due to menopause.
  2. Treatment of moderate to severe symptoms of vulvar and vaginal atrophy due to menopause. When prescribing solely for the treatment of symptoms of vulvar and vaginal atrophy, topical vaginal products should be considered.
  3. Treatment of hypoestrogenism due to hypogonadism, castration or primary ovarian failure.
  4. Treatment of breast cancer (for palliation only) in appropriately selected women and men with metastatic disease.
  5. Treatment of advanced androgen-dependent carcinoma of the prostate (for palliation only).
  6. Prevention of postmenopausal osteoporosis. When prescribing solely for the prevention of postmenopausal osteoporosis, therapy should only be considered for women at significant risk of osteoporosis and non-estrogen medications should be carefully considered.

The mainstays for decreasing the risk of postmenopausal osteoporosis are weight-bearing exercise, adequate calcium and vitamin D intake, and when indicated, pharmacologic therapy. Postmenopausal women require an average of 1500 mg per day of elemental calcium. Therefore, when not contraindicated, calcium supplementation may be helpful for women with suboptimal dietary intake. Vitamin D supplementation of 400-800IU per day may also be required to ensure adequate daily intake in postmenopausal women.

DOSAGE AND ADMINISTRATION

When estrogen therapy is prescribed for a postmenopausal woman with a uterus, progestin should also be initiated to reduce the risk of endometrial cancer. A woman without a uterus does not need progestin. Use of estrogen-alone, or in combination with a progestin, should be with the lowest effective dose and for the shortest duration consistent with treatment goals and risks for the individual woman. Patients should be reevaluated periodically as clinically appropriate (for example at 3-month to 6-month intervals) to determine if treatment is still necessary. Adequate diagnostic measures, such as directed or random endometrial sampling, when indicated, should be undertaken to rule out malignancy in postmenopausal women with undiagnosed persistent or recurring abnormal genital bleeding.

PREMARIN may be taken without regard to meals.

  1. For treatment of moderate to severe vasomotor symptoms and/or moderate to severe symptoms of vulvar and vaginal atrophy due to menopause:
    When prescribing solely for the treatment of moderate to severe symptoms of vulvar and vaginal atrophy, topical vaginal products should be considered.
    Patients should be treated with the lowest effective dose. Generally, women should be started at 0.3 mg PREMARIN daily. Subsequent dosage adjustment may be made based upon the individual patient response. This dose should be periodically reassessed by the healthcare provider.
    PREMARIN therapy may be given continuously, with no interruption in therapy, or in cyclical regimens (regimens such as 25 days on drug followed by five days off drug), as is medically appropriate on an individualized basis.
  2. For prevention of postmenopausal osteoporosis:
    When prescribing solely for the prevention of postmenopausal osteoporosis, therapy should be considered only for women at significant risk of osteoporosis and non-estrogen medications should be carefully considered. Patients should be treated with the lowest effective dose. Generally, women should be started at 0.3 mg PREMARIN daily. Subsequent dosage adjustment may be made based upon the individual clinical and bone mineral density responses. This dose should be periodically reassessed by the healthcare provider.
    PREMARIN therapy may be given continuously, with no interruption in therapy, or in cyclical regimens (regimens such as 25 days on drug followed by five days off drug), as is medically appropriate on an individualized basis.
  3. For treatment of female hypoestrogenism due to hypogonadism, castration, or primary ovarian failure:
    Female hypogonadism — 0.3 mg or 0.625 mg daily, administered cyclically (e.g., three weeks on and one week off). Doses are adjusted depending on the severity of symptoms and responsiveness of the endometrium.
    In clinical studies of delayed puberty due to female hypogonadism, breast development was induced by doses as low as 0.15 mg. The dosage may be gradually titrated upward at 6-to-12 month intervals as needed to achieve appropriate bone age advancement and eventual epiphyseal closure. Clinical studies suggest that doses of 0.15 mg, 0.3 mg, and 0.6 mg are associated with mean ratios of bone age advancement to chronological age progression (ΔBA/ΔCA) of 1.1, 1.5, and 2.1, respectively. (PREMARIN in the dose strength of 0.15 mg is not available commercially). Available data suggest that chronic dosing with 0.625 mg is sufficient to induce artificial cyclic menses with sequential progestin treatment and to maintain bone mineral density after skeletal maturity is achieved.
    Female castration or primary ovarian failure — 1.25 mg daily, cyclically. Adjust dosage, upward or downward, according to severity of symptoms and response of the patient. For maintenance, adjust dosage to lowest level that will provide effective control.
  4. For treatment of breast cancer, for palliation only, in appropriately selected women and men with metastatic disease:
    Suggested dosage is 10 mg three times daily, for a period of at least three months.
  5. For treatment of advanced androgen-dependent carcinoma of the prostate, for palliation only:
    1.25 mg to 2 x 1.25 mg three times daily. The effectiveness of therapy can be judged by phosphatase determinations as well as by symptomatic improvement of the patient.

HOW SUPPLIED

PREMARIN® (conjugated estrogens tablets, USP)

  • Each oval green tablet contains 0.3 mg, in bottles of 100 (NDC 0046-1100-81) and 1,000 (NDC 0046-1100-91).
  • Each oval blue tablet contains 0.45 mg, in bottles of 100 (NDC 0046-1101-81).
  • Each oval maroon tablet contains 0.625 mg, in bottles of 100 (NDC 0046-1102-81) and 1,000 (NDC 0046-1102-91).
  • Each oval white tablet contains 0.9 mg, in bottles of 100 (NDC 0046-1103-81).
  • Each oval yellow tablet contains 1.25 mg, in bottles of 100 (NDC 0046-1104-81) and 1,000 (NDC 0046-1104-91).

The appearance of these tablets is a trademark of Wyeth LLC.

Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].

Dispense in a well-closed container, as defined in the USP.

Distributed by Wyeth Pharmaceuticals Inc A Subsidiary of Pfizer Inc, Philadelphia, PA 19101. Rev 06/2011

Last reviewed on RxList: 11/11/2011
This monograph has been modified to include the generic and brand name in many instances.

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