Premarin^®
Intravenous
(conjugated estrogens, USP) for injection

Close clinical surveillance of all women taking estrogens is important. Adequate diagnostic measures, including endometrial sampling when indicated, should be undertaken to rule out malignancy in all cases of undiagnosed persistent or recurring abnormal vaginal bleeding. There is no evidence that the use of “natural” estrogens results in a different endometrial risk profile than synthetic estrogens of equivalent estrogen doses. (See WARNINGS, Malignant neoplasms, Endometrial cancer.)

Estrogens with or without progestins should not be used for the prevention of cardiovascular disease or dementia. (See CLINICAL STUDIES and WARNINGS, Cardiovascular disorders and Dementia.)

The estrogen-alone substudy of the Women's Health Initiative (WHI) reported increased risks of stroke and deep vein thrombosis (DVT) in postmenopausal women (50 to 79 years of age) during 6.8 years and 7.1 years, respectively, of treatment with oral conjugated estrogens (CE 0.625 mg) per day relative to placebo. (See CLINICAL STUDIES and WARNINGS, Cardiovascular disorders.)

The estrogen-plus-progestin substudy of the WHI reported increased risks of myocardial infarction, stroke, invasive breast cancer, pulmonary emboli, and deep vein thrombosis in postmenopausal women (50 to 79 years of age) during 5.6 years of treatment with oral conjugated estrogens (0.625 mg) combined with medroxyprogesterone acetate (MPA 2.5 mg) per day relative to placebo. (See CLINICAL STUDIES and WARNINGS, Cardiovascular disorders and Malignant neoplasms, Breast cancer.)

The Women's Health Initiative Memory Study (WHIMS), a substudy of WHI, reported an increased risk of developing probable dementia in postmenopausal women 65 years of age or older during 5.2 years of treatment with CE 0.625 mg alone and during four years of treatment with CE 0.625 mg combined with MPA 2.5 mg, relative to placebo. It is unknown whether this finding applies to younger postmenopausal women. (See CLINICAL STUDIES and WARNINGS, Dementia and PRECAUTIONS, Geriatric Use.)

Other doses of conjugated estrogens and medroxyprogesterone acetate, and other combinations and dosage forms of estrogens and progestins, were not studied in the WHI clinical trials, and in the absence of comparable data, these risks should be assumed to be similar. Because of these risks, estrogens with or without progestins should be prescribed at the lowest effective doses and for the shortest duration consistent with treatment goals and risks for the individual woman.

Premarin^® Intravenous (conjugated estrogens, USP) for injection contains a mixture of conjugated estrogens obtained exclusively from natural sources, occurring as the sodium salts of water-soluble estrogen sulfates blended to represent the average composition of materials derived from pregnant mares' urine. It is a mixture of sodium estrone sulfate and sodium equilin sulfate. It contains as concomitant components, as sodium sulfate conjugates, 17α-dihydroequilin, 17α-estradiol, and 17β-dihydroequilin.

Each Secule^® vial contains 25 mg of conjugated estrogens, USP, in a sterile lyophilized cake which also contains lactose 200 mg, sodium citrate 12.2 mg, and simethicone 0.2 mg. The pH is adjusted with sodium hydroxide or hydrochloric acid. The reconstituted solution is suitable for intravenous or intramuscular injection.

Endogenous estrogens are largely responsible for the development and maintenance of the female reproductive system and secondary sexual characteristics. Although circulating estrogens exist in a dynamic equilibrium of metabolic interconversions, estradiol is the principal intracellular human estrogen and is substantially more potent than its metabolites, estrone and estriol, at the receptor level. The primary source of estrogen in normally cycling adult women is the ovarian follicle, which secretes 70 to 500 mcg of estradiol daily, depending on the phase of the menstrual cycle. After menopause, most endogenous estrogen is produced by conversion of androstenedione, secreted by the adrenal cortex, to estrone by peripheral tissues. Thus, estrone and the sulfate-conjugated form, estrone sulfate, are the most abundant circulating estrogen in postmenopausal women.

Estrogens act through binding to nuclear receptors in estrogen-responsive tissues. To date, two estrogen receptors have been identified. These vary in proportion from tissue to tissue.

Circulating estrogens modulate the pituitary secretion of the gonadotropins, luteinizing hormone (LH) and follicle stimulating hormone (FSH) through a negative feedback mechanism. Estrogens act to reduce the elevated levels of these gonadotropins seen in postmenopausal women.

The Women's Health Initiative (WHI) enrolled approximately 27,000 predominantly healthy postmenopausal women in two substudies to assess the risks and benefits of oral conjugated estrogens (CE 0.625 mg) alone or in combination with medroxyprogesterone acetate (CE 0.625 mg/MPA 2.5 mg) compared to placebo in the prevention of certain chronic diseases. The primary endpoint was the incidence of coronary heart disease (CHD) (nonfatal myocardial infarction (MI), silent MI and CHD death), with invasive breast cancer as the primary adverse outcome. A “global index” included the earliest occurrence of CHD, invasive breast cancer, stroke, pulmonary embolism (PE), endometrial cancer (only in CE/MPA), colorectal cancer, hip fracture, or death due to other causes. The study did not evaluate the effects of CE tablets or CE/MPA on menopausal symptoms.

The estrogen-alone substudy was stopped early because an increased risk of stroke was observed, and it was deemed that no further information would be obtained regarding the risks and benefits of estrogen alone in predetermined primary endpoints. Results of the estrogen-alone substudy, which included 10,739 women (average age of 63 years, range 50 to 79; 75.3% White, 15.1% Black, 6.1% Hispanic, 3.6% Other) after an average follow-up of 6.8 years, are presented in Table 1 below.

For those outcomes included in the WHI “global index” that reached statistical significance, the absolute excess risk per 10,000 women-years in the group treated with CE alone were 12 more strokes while the absolute risk reduction per 10,000 women-years was six fewer hip fractures. The absolute excess risk of events included in the “global index” was a nonsignificant two events per 10,000 women-years. There was no difference between the groups in terms of all-cause mortality. (See BOXED WARNINGS, WARNINGS, and PRECAUTIONS.)

Final adjudicated results for CHD events from the estrogen-alone substudy, after an average follow-up of 7.1 years, reported no overall difference for primary CHD events (nonfatal MI, silent MI and CHD death) in women receiving CE alone compared with placebo (see Table 1).

The estrogen-plus-progestin substudy was also stopped early. According to the predefined stopping rule, after an average follow-up of 5.2 years of treatment, the increased risk of breast cancer and cardiovascular events exceeded the specified benefits included in the “global index.” The absolute excess risk of events included in the “global index” was 19 per 10,000 women-years (RR 1.15, 95% nCI 1.03-1.28).

For those outcomes included in the WHI “global index” that reached statistical significance after 5.6 years of follow-up, the absolute excess risks per 10,000 women years in the group treated with CE/MPA were six more CHD events, seven more strokes, ten more PEs, and eight more invasive breast cancers, while the absolute risk reductions per 10,000 women-years were seven fewer colorectal cancers and five fewer hip fractures. (See BOXED WARNINGS, WARNINGS, and PRECAUTIONS.)

Results of the estrogen-plus-progestin substudy, which included 16,608 women (average age of 63 years, range 50 to 79; 83.9% White, 6.8% Black, 5.4% Hispanic, 3.9% Other) are presented in Table 2 below. These results reflect centrally adjudicated data after an average follow-up of 5.6 years.

The estrogen-alone Women’s Health Initiative Memory Study (WHIMS), a substudy of WHI, enrolled 2,947 predominantly healthy postmenopausal women 65 years of age and older (45%, age 65 to 69 years; 36%, 70 to 74 years; 19%, 75 years of age and older) to evaluate the effects of CE 0.625 mg daily on the incidence of probable dementia (primary outcome) compared with placebo.

After an average follow-up of 5.2 years, 28 women in the estrogen-alone group (37 per 10,000 women-years) and 19 in the placebo group (25 per 10,000 women-years) were diagnosed with probable dementia. The relative risk of probable dementia in the estrogen-alone group was 1.49 (95% CI 0.83–2.66) compared to placebo. It is unknown whether these findings apply to younger postmenopausal women. (See BOXED WARNINGS, WARNINGS, Dementia and PRECAUTIONS, Geriatric Use.)

The estrogen-plus-progestin WHIMS substudy enrolled 4,532 predominantly healthy postmenopausal women 65 years of age and older (47%, age 65 to 69 years; 35%, 70 to 74 years; 18%, 75 years of age and older) to evaluate the effects of CE/MPA 0.625 mg conjugated estrogens/2.5 mg medroxyprogesterone acetate daily on the incidence of probable dementia (primary outcome) compared with placebo.

After an average follow-up of four years, 40 women in the estrogen-plus-progestin group (45 per 10,000 women-years) and 21 in the placebo group (22 per 10,000 women-years) were diagnosed with probable dementia. The relative risk of probable dementia in the hormone therapy group was 2.05 (95% CI 1.21–3.48) compared to placebo.

When data from the two populations were pooled as planned in the WHIMS protocol, the reported overall relative risk for probable dementia was 1.76 (95% CI 1.19-2.60). Differences between groups became apparent in the first year of treatment. It is unknown whether these findings apply to younger postmenopausal women. (See BOXED WARNINGS, WARNINGS, Dementia and PRECAUTIONS,Geriatric Use.)

Premarin Intravenous (conjugated estrogens, USP) for injection is indicated in the treatment of abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology.

Premarin Intravenous is indicated for short-term use only, to provide a rapid and temporary increase in estrogen levels.

Premarin Intravenous should not be used in individuals 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 a history of these conditions.

5. Active or recent (e.g., within past year) arterial thromboembolic disease (e.g., stroke, myocardial infarction).

6. Liver dysfunction or disease.

7. Premarin Intravenous for injection should not be used in patients with known hypersensitivity to its ingredients.

8. Known or suspected pregnancy. There is no indication for Premarin Intravenous in pregnancy. There appears to be little or no increased risk of birth defects in children born to women who have used estrogen and progestins from oral contraceptives inadvertently during pregnancy. (See PRECAUTIONS.)

See BOXED WARNINGS.

Premarin Intravenous is indicated for short-term use. However, warnings, precautions and adverse reactions associated with Premarin tablets should be taken into account.

Estrogen-alone therapy has been associated with an increased risk of stroke and deep vein thrombosis (DVT).

Estrogen-plus-progestin therapy has been associated with an increased risk of myocardial infarction as well as stroke, venous thrombosis and pulmonary embolism.

Should any of these events occur or be suspected, estrogens should be discontinued immediately.

Risk factors for arterial vascular disease (e.g., hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or venous thromboembolism (e.g., personal history or family history of VTE, obesity, and systemic lupus erythematosus) should be managed appropriately.

In the estrogen-alone Women’s Health Initiative Memory Study (WHIMS), a substudy of WHI, a population of 2,947 hysterectomized women aged 65 to 79 years was randomized to CE (0.625 mg daily) or placebo. In the estrogen-plus-progestin WHIMS substudy, a population of 4,532 postmenopausal women aged 65 to 79 years was randomized to CE/MPA (0.625 mg/2.5 mg daily) or placebo.

In the estrogen-alone substudy, after an average follow-up of 5.2 years, 28 women in the estrogen-alone group and 19 women in the placebo group were diagnosed with probable dementia. The relative risk of probable dementia for CE alone vs. placebo was 1.49 (95% CI 0.83-2.66). The absolute risk of probable dementia for CE alone vs. placebo was 37 vs. 25 cases per 10,000 women-years.

In the estrogen-plus-progestin substudy, after an average follow-up of four years, 40 women in the estrogen-plus-progestin group and 21 women in the placebo group were diagnosed with probable dementia. The relative risk of probable dementia for estrogen plus progestin versus placebo was 2.05 (95% CI 1.21-3.48). The absolute risk of probable dementia for CE/MPA vs. placebo was 45 vs. 22 cases per 10,000 women-years.

When data from the two populations were pooled as planned in the WHIMS protocol, the reported overall relative risk for probable dementia was 1.76 (95% CI 1.19-2.60). Since both substudies were conducted in women aged 65 to 79 years, it is unknown whether these findings apply to younger postmenopausal women. (See BOXED WARNINGS and PRECAUTIONS, Geriatric Use.)

A 2- to 4-fold increase in the risk of gallbladder disease requiring surgery in postmenopausal women receiving postmenopausal estrogens has been reported.

Estrogen administration may lead to severe hypercalcemia in patients with breast cancer and bone metastases. If hypercalcemia occurs, use of the drug should be stopped and appropriate measures taken to reduce the serum calcium level.

Retinal vascular thrombosis has been reported in patients receiving estrogens. Discontinue medication pending examination if there is sudden partial or complete loss of vision, or a sudden onset of proptosis, diplopia, or migraine. If examination reveals papilledema or retinal vascular lesions, estrogens should be discontinued.

Premarin Intravenous is indicated for short-term use. However, warnings, precautions and adverse reactions associated with Premarin tablets should be taken into account.

Physicians are advised to discuss the spans of the PATIENT INFORMATION leaflet with patients who are being treated with Premarin Intravenous.

Estrogen administration should be guided by clinical response at the lowest dose, rather than laboratory monitoring.

1. Accelerated prothrombin time, partial thromboplastin time, and platelet aggregation time; increased platelet count; increased factors II, VII antigen, VIII antigen, VIII coagulant activity, IX, X, XII, VII-X complex, II-VII-X complex, and beta-thromboglobulin; decreased levels of anti-factor Xa and antithrombin III, decreased antithrombin III activity; increased levels of fibrinogen and fibrinogen activity; increased plasminogen antigen and activity.

2. Increased thyroid-binding globulin (TBG) leading to increased circulating total thyroid hormone, as measured by protein-bound iodine (PBI), T₄ levels (by column or by radioimmunoassay) or T₃ levels by radioimmunoassay. T₃ resin uptake is decreased, reflecting the elevated TBG. Free T₄ and free T₃ concentrations are unaltered. Patients on thyroid replacement therapy may require higher doses of thyroid hormone.

3. Other binding proteins may be elevated in serum, i.e., corticosteroid binding globulin (CBG), sex hormone-binding globulin (SHBG), leading to increased total circulating corticosteroids and sex steroids respectively. Free hormone concentrations may be decreased. Other plasma proteins may be increased (angiotensinogen/renin substrate, alpha-1-antitrypsin, ceruloplasmin).

4. Increased plasma HDL and HDL₂ subfraction concentrations, reduced LDL cholesterol concentration, increased triglyceride levels.

5. Impaired glucose tolerance.

6. Reduced response to metyrapone test.

(See BOXED WARNINGS, WARNINGS, and PRECAUTIONS.)

Long-term continuous administration of natural and synthetic estrogens in certain animal species increases the frequency of carcinomas of the breast, uterus, cervix, vagina, testis, and liver.

Premarin Intravenous should not be used during pregnancy. (See CONTRAINDICATIONS.)

Estrogen administration to nursing mothers has been shown to decrease the quantity and quality of breast milk. Detectable amounts of estrogens have been identified in the milk of mothers receiving the drug. Caution should be exercised when Premarin Intravenous is administered to a nursing woman.

Estrogen therapy has been used for the induction of puberty in adolescents with some forms of pubertal delay. Safety and effectiveness in pediatric patients have not otherwise been established.

Large and repeated doses of estrogen over an extended time period have been shown to accelerate epiphyseal closure, which could result in short adult stature if treatment is initiated before the completion of physiologic puberty in normally developing children. If estrogen is administered to patients whose bone growth is not complete, periodic monitoring of bone maturation and effects on epiphyseal centers is recommended during estrogen administration.

Estrogen treatment of prepubertal girls also induces premature breast development and vaginal cornification, and may induce vaginal bleeding. In boys, estrogen treatment may modify the normal pubertal process and induce gynecomastia. (See INDICATIONS AND USAGE and DOSAGE AND ADMINISTRATION.)

Of the total number of subjects in the estrogen-alone substudy of the Women’s Health Initiative (WHI) study, 46% (n=4,943) were 65 years and over, while 7.1% (n=767) were 75 years and over. There was a higher relative risk (CE vs. placebo) of stroke in women less than 75 years of age compared to women 75 years and over.

In the estrogen-alone Women’s Health Initiative Memory Study (WHIMS), a substudy of WHI, a population of 2,947 hysterectomized women, aged 65 to 79 years, was randomized to CE (0.625 mg daily) or placebo. After an average follow-up of 5.2 years, the relative risk (CE vs. placebo) of probable dementia was 1.49 (95% CI 0.83-2.66).The absolute risk of developing probable dementia with estrogen alone was 37 vs. 25 cases per 10,000 women-years with placebo.

Of the total number of subjects in the estrogen plus progestin substudy of the Women’s Health Initiative study, 44% (n=7,320) were 65–74 years of age, while 6.6% (n=1,095) were 75 years and over. There was a higher relative risk (CE/MPA vs. placebo) of non-fatal stroke and invasive breast cancer in women 75 and over compared to women less than 75 years of age. In women greater than 75, the increased risk of non-fatal stroke and invasive breast cancer observed in the estrogen-plus-progestin combination group compared to the placebo group was 75 vs. 24 per 10,000 women-years and 52 vs. 12 per 10,000 women-years, respectively.

In the estrogen-plus-progestin WHIMS substudy, a population of 4,532 postmenopausal women, aged 65 to 79 years, was randomized to CE/MPA (0.625 mg/2.5 mg daily) or placebo. In the estrogen-plus-progestin group, after an average follow-up of four years, the relative risk (CE/MPA vs. placebo) of probable dementia was 2.05 (95% CI 1.21-3.48). The absolute risk of developing probable dementia with CE/MPA was 45 vs. 22 cases per 10,000 women-years with placebo.

Seventy-nine percent of the cases of probable dementia occurred in women that were older than 70 for the CE group, and 82 percent of the cases of probable dementia occurred in women who were older than 70 in the CE/MPA group. The most common classification of probable dementia in both the treatment groups and placebo groups was Alzheimer’s disease.

When data from the two populations were pooled as planned in the WHIMS protocol, the reported overall relative risk for probable dementia was 1.76 (95% CI 1.19-2.60). Since both substudies were conducted in women aged 65 to 79 years, it is unknown whether these findings apply to younger postmenopausal women. (See BOXED WARNINGS and WARNINGS, Dementia.)

There have not been sufficient numbers of geriatric patients involved in studies utilizing Premarin to determine whether those over 65 years of age differ from younger subjects in their response to Premarin.

See BOXED WARNINGS, WARNINGS, and PRECAUTIONS.

Premarin Intravenous is indicated for short-term use. However, the warnings, precautions and adverse reactions associated with Premarin tablets should be taken into account.

• Changes in vaginal bleeding pattern and abnormal withdrawal bleeding or flow; breakthrough bleeding, spotting.
  Increase in size of uterine leiomyomata.
  Vaginal candidiasis.
  Change in amount of cervical secretion.
  Ovarian cancer.
  Endometrial hyperplasia.
  Endometrial cancer.

• Pain, tenderness, enlargement.
  Breast cancer.

• Deep and superficial venous thrombosis.
  Pulmonary embolism.
  Thrombophlebitis.
  Hypotension.
  Myocardial infarction.
  Stroke.

• Nausea, vomiting.
  Abdominal cramps, bloating.
  Cholestatic jaundice.
  Increased incidence of gallbladder disease.
  Pancreatitis.
  Enlargement of hepatic hemangiomas.
  Ischemic colitis.

• Chloasma or melasma that may persist when drug is discontinued.
  Erythema multiforme.
  Erythema nodosum.
  Hemorrhagic eruption.
  Loss of scalp hair.
  Hirsutism.
  Pruritis.
  Rash.

• Retinal vascular thrombosis.
  Intolerance to contact lenses.

• Headache.
  Migraine.
  Dizziness.
  Mental depression.
  Chorea.
  Nervousness.
  Exacerbation of epilepsy.
  Dementia.
  Possible growth potentiation of benign meningioma.

• Increase or decrease in weight.
  Reduced carbohydrate tolerance.
  Aggravation of porphyria.
  Edema.
  Changes in libido.
  Anaphylactoid/anaphylactic reactions.
  Urticaria.
  Angioedema.
  Injection site pain.
  Injection site edema.
  Phlebitis (injection site).
  Exacerbation of asthma.
  Increased triglycerides.

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.

For treatment of abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology:

One 25 mg injection, intravenously or intramuscularly. Intravenous use is preferred since more rapid response can be expected from this mode of administration. Repeat in 6 to 12 hours if necessary. The use of Premarin Intravenous for injection does not preclude the advisability of other appropriate measures.

One should adhere to the usual precautionary measures governing intravenous administration. Injection should be made SLOWLY to obviate the occurrence of flushes.

Infusion of Premarin Intravenous for injection with other agents is not generally recommended. In emergencies, however, when an infusion has already been started it may be expedient to make the injection into the tubing just distal to the infusion needle. If so used, compatibility of solutions must be considered.

COMPATIBILITY OF SOLUTIONS: Premarin Intravenous is compatible with normal saline, dextrose, and invert sugar solutions. It is not compatible with protein hydrolysate, ascorbic acid, or any solution with an acid pH.

STORAGE BEFORE RECONSTITUTION: Store package in refrigerator, 2° to 8°C (36° to 46°F).

TO RECONSTITUTE: Reconstitute Premarin^® Intravenous with 5 mL of Sterile Water for Injection, USP. Introduce the sterile diluent slowly against the side of SECULE^® vial and agitate gently. Do not shake violently. Use immediately after reconstitution.

NDC 0046-0749-05–Each package provides one SECULE^® vial containing 25 mg of conjugated estrogens, USP, for injection (also lactose 200 mg, sodium citrate 12.2 mg, and simethicone 0.2 mg). The pH is adjusted with sodium hydroxide or hydrochloric acid.

Premarin Intravenous (conjugated estrogens, USP) for injection is prepared by cryodesiccation.

SECULE^®-Registered trademark to designate a vial containing an injectable preparation in dry form.

Premarin^® Intravenous (conjugated estrogens, USP) for injection

Read this PATIENT INFORMATION which describes the benefit and major risks of your treatment, as well as how and when treatment should be used. This information does not take the place of talking to your healthcare provider about your medical condition or your treatment.

Premarin Intravenous is a medicine that contains a mixture of estrogen hormones.

• treat certain types of abnormal uterine bleeding due to hormonal imbalance when your doctor has found no other cause of bleeding.

Premarin Intravenous should not be used if you:

• have unusual vaginal bleeding that has not been evaluated by your healthcare provider.
• currently have or have had certain cancers.
  
  Estrogens may increase the chances of getting certain types of cancers, including cancer of the breast or uterus. If you have or have had cancer, talk with your healthcare provider about whether you should use Premarin Intravenous.
• had a stroke or heart attack in the past year.
• currently have or have had blood clots.
• currently have liver problems.
• are allergic to Premarin Intravenous or any of its ingredients.
  
  See the end of this leaflet for a ul of all the ingredients in Premarin Intravenous.
• think you may be pregnant.

• if you are breast feeding. The hormones in Premarin Intravenous can pass into your milk.
• about all of your medical problems. Your healthcare provider may need to check you more carefully if you have certain conditions, such as asthma (wheezing), epilepsy (seizures), migraine, endometriosis, lupus, problems with your heart, liver, thyroid, kidneys, or have high calcium levels in your blood.
• about all the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal supplements. Some medicines may affect how Premarin Intravenous works.

Premarin Intravenous is for short-term use only. However, the risks associated with Premarin tablets should be taken into account.

• If you have high blood pressure, high cholesterol (fat in the blood), diabetes, are overweight, or if you use tobacco, you may have higher chances for getting heart disease. Ask your healthcare provider for ways to lower your chances for getting heart disease.

Medicines are sometimes prescribed for conditions that are not mentioned in patient information leaflets. Do not use Premarin Intravenous for conditions for which it was not prescribed. Do not give Premarin Intravenous to other people, even if they have the same symptoms you have. It may harm them. Keep Premarin Intravenous out of the reach of children.

This leaflet provides a summary of the most important information about Premarin Intravenous. If you would like more information, talk with your healthcare provider or pharmacist. You can ask for information about Premarin Intravenous that is written for health professionals. You can get more information by calling the toll free number 1-800-934-5556.

Premarin Intravenous for injection contains a mixture of conjugated estrogens, which are a mixture of sodium estrone sulfate and sodium equilin sulfate and other components including sodium sulfate conjugates: 17α-dihydroequilin, 17α-estradiol, and 17β-dihydroequilin. Premarin Intravenous for injection also contains lactose, sodium citrate, simethicone, and sodium hydroxide or hydrochloric acid in dry form. The reconstituted solution is suitable for intravenous or intramuscular injection.

Each Premarin Intravenous (conjugated estrogens, USP) for injection package provides 25 mg of conjugated estrogens, USP, in dry form for intravenous or intramuscular use.

This product's label may have been revised after this insert was used in production. For further product information and current package insert, please visit www.wyeth.com or call our medical communications department toll-free at 1-800-934-5556.

Wyeth^®

Wyeth Pharmaceuticals Inc.
Philadelphia, PA 19101

W10411C010
ET01
Rev 08/07

«TEAR HERE

Premarin^®
Intravenous
(conjugated estrogens, USP) for injection

Rx only

Read this PATIENT INFORMATION which describes the benefit and major risks of your treatment, as well as how and when treatment should be used. This information does not take the place of talking to your healthcare provider about your medical condition or your treatment.

Premarin Intravenous is a medicine that contains a mixture of estrogen hormones.

• treat certain types of abnormal uterine bleeding due to hormonal imbalance when your doctor has found no other cause of bleeding.

Premarin Intravenous should not be used if you:

• have unusual vaginal bleeding that has not been evaluated by your healthcare provider.
• currently have or have had certain cancers.
  
  Estrogens may increase the chances of getting certain types of cancers, including cancer of the breast or uterus. If you have or have had cancer, talk with your healthcare provider about whether you should use Premarin Intravenous.
• had a stroke or heart attack in the past year.
• currently have or have had blood clots.
• currently have liver problems.
• are allergic to Premarin Intravenous or any of its ingredients.
  
  See the end of this leaflet for a ul of all the ingredients in Premarin Intravenous.
• think you may be pregnant.

• if you are breast feeding. The hormones in Premarin Intravenous can pass into your milk.
• about all of your medical problems. Your healthcare provider may need to check you more carefully if you have certain conditions, such as asthma (wheezing), epilepsy (seizures), migraine, endometriosis, lupus, problems with your heart, liver, thyroid, kidneys, or have high calcium levels in your blood.
• about all the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal supplements. Some medicines may affect how Premarin Intravenous works.

Premarin Intravenous is for short-term use only. However, the risks associated with Premarin tablets should be taken into account.

• If you have high blood pressure, high cholesterol (fat in the blood), diabetes, are overweight, or if you use tobacco, you may have higher chances for getting heart disease. Ask your healthcare provider for ways to lower your chances for getting heart disease.

Medicines are sometimes prescribed for conditions that are not mentioned in patient information leaflets. Do not use Premarin Intravenous for conditions for which it was not prescribed. Do not give Premarin Intravenous to other people, even if they have the same symptoms you have. It may harm them. Keep Premarin Intravenous out of the reach of children.

This leaflet provides a summary of the most important information about Premarin Intravenous. If you would like more information, talk with your healthcare provider or pharmacist. You can ask for information about Premarin Intravenous that is written for health professionals. You can get more information by calling the toll free number 1-800-934-5556.

Premarin Intravenous for injection contains a mixture of conjugated estrogens, which are a mixture of sodium estrone sulfate and sodium equilin sulfate and other components including sodium sulfate conjugates: 17α-dihydroequilin, 17α-estradiol, and 17β-dihydroequilin. Premarin Intravenous for injection also contains lactose, sodium citrate, simethicone, and sodium hydroxide or hydrochloric acid in dry form. The reconstituted solution is suitable for intravenous or intramuscular injection.

Each Premarin Intravenous (conjugated estrogens, USP) for injection package provides 25 mg of conjugated estrogens, USP, in dry form for intravenous or intramuscular use.

This product's label may have been revised after this insert was used in production. For further product information and current package insert, please visit www.wyeth.com or call our medical communications department toll-free at 1-800-934-5556.

Wyeth^®

Wyeth Pharmaceuticals Inc.
Philadelphia, PA 19101

W10411C010
ET01
Rev 08/07