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Evamist

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Evamist

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SIDE EFFECTS

Clinical Study Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

In a 12-week, randomized, placebo-controlled trial of Evamist in 454 women, 80-90 percent of women randomized to active drug received at least 70 days of therapy and 75-85 percent randomized to placebo received at least 70 days of therapy.

The adverse reactions that occurred in at least 5 percent of women in any treatment group are shown in Table 1.

Table 1: Frequency of Adverse Reactions ( ≥ 5%) in Any Treatment Group in a Controlled Study of Evamist

System Organ Class Preferred Term Frequency n (%)
1 Spray 2 Sprays 3 Sprays
Placebo
(N = 77)
Evamist
(N = 76)
Placebo
(N = 76)
Evamist
(N = 74)
Placebo
(N = 75)
Evamist
(N = 76)
Reproductive System and Breast Disorders
  Breast tenderness 0 (0) 4 (5) 4 (5) 5 (7) 0 (0) 4 (5)
  Nipple pain 0 (0) 2 (3) 0 (0) 5 (7) 0 (0) 1 (1)
Gastrointestinal Disorders
  Nausea 5 (7) 1 (1) 1 (1) 2 (3) 4 (5) 2 (3)
Infections and Infestations
  Nasopharyngitis 1 (1) 4 (5) 2 (3) 3 (4) 1 (1) 1 (1)
Musculoskeletal and Connective Tissue Disorders
  Back pain 1 (1) 2 (3) 2 (3) 4 (5) 1 (1) 2 (3)
  Arthralgia 1 (1) 1 (1) 4 (5) 1 (1) 0 (0) 3 (4)
Nervous system
  Headache 4 (5) 7 (9) 5 (7) 9 (12) 7 (9) 8 (11)

Application site reactions were reported in 3 out of 226 (1.3%) women treated with Evamist.

Additional Adverse Reactions Reported With Estrogen and/or Progestin Therapy

The following additional adverse reactions have been reported with estrogen and/or progestin therapy.

Genitourinary System

Abnormal uterine bleeding/spotting, dysmenorrhea/pelvic pain, increase in size of uterine leiomyomata, vaginitis including vaginal candidiasis, change in amount of cervical secretion, changes in cervical ectropion, ovarian cancer, endometrial hyperplasia, endometrial cancer.

Breasts

Tenderness, enlargement, pain, nipple discharge, galactorrhea, fibrocystic breast changes, breast cancer.

Cardiovascular

Deep and superficial venous thrombosis, pulmonary embolism, thrombophlebitis, myocardial infarction, stroke, increase in blood pressure.

Gastrointestinal

Nausea, vomiting, abdominal cramps, bloating, cholestatic jaundice, increased incidence of gallbladder disease, pancreatitis, enlargement of hepatic hemangiomas.

Skin

Chloasma or melasma, that may persist when drug is discontinued; erythema multiforme, erythema nodosum, hemorrhagic eruption, loss of scalp hair, hirsutism, pruritus, rash.

Eyes

Retinal vascular thrombosis, intolerance to contact lenses.

Central Nervous System

Headache, migraine, dizziness, mental depression, exacerbation of chorea, nervousness, mood disturbances, irritability, exacerbation of epilepsy, dementia.

Miscellaneous

Increase or decrease in weight, glucose intolerance, aggravation of porphyria, edema, arthralgias, leg cramps, changes in libido, urticaria, angioedema, anaphylactoid/anaphylactic reactions, hypocalcemia (preexisting condition), exacerbation of asthma, increased triglycerides.

DRUG INTERACTIONS

No formal drug interaction studies have been conducted for Evamist.

Metabolic Interactions

In vitro and in vivo studies have shown that estrogens are metabolized partially by cytochrome P450 3A4 (CYP3A4). Therefore, inducers or inhibitors of CYP3A4 may affect estrogen drug metabolism. Inducers of CYP3A4 such as St. John's Wort preparations (Hypericum perforatum), phenobarbital, carbamazepine, and rifampin may reduce plasma concentrations of estrogens, possibly resulting in a decrease in therapeutic effects and/or changes in the uterine bleeding profile. Inhibitors of CYP3A4 such as erythromycin, clarithromycin, ketoconazole, itraconazole, ritonavir and grapefruit juice may increase plasma concentrations of estrogens and may result in side effects.

Last reviewed on RxList: 11/10/2011
This monograph has been modified to include the generic and brand name in many instances.

Evamist - User Reviews

Evamist User Reviews

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