Evamist Side Effects: What to Expect and When to Call Your Doctor

Evamist (estradiol transdermal spray) delivers estradiol — a form of estrogen — through the skin to relieve moderate-to-severe hot flashes and night sweats caused by menopause. Like all hormone therapies, Evamist has both common, manageable side effects and serious risks that require prompt medical attention. This guide explains what to expect and what warning signs to watch for.

Common Side Effects of Evamist (Occurring in ≥5% of Patients)

In a 12-week, randomized, placebo-controlled clinical trial of Evamist in 454 women, the most common side effects (occurring in 5% or more of patients) were:

Headache — the most commonly reported side effect

Breast tenderness and nipple pain — often improves as your body adjusts to the hormone

Nausea

Back pain

Nasopharyngitis (runny nose, congestion, sore throat)

These side effects often improve over time as your body adjusts. If they persist or worsen after the first several weeks, contact your healthcare provider.

Less Common Side Effects Reported Post-Approval

Additional side effects reported since Evamist's approval include:

Breast swelling, breast enlargement

Abdominal pain, bloating, diarrhea, constipation, dry mouth, decreased appetite

Nipple and skin discoloration (often on the same side as the application arm)

Skin reactions: rash, itching, dry skin, chloasma (skin darkening)

Weight gain (usually due to fluid retention rather than fat gain)

Hair thinning (alopecia)

Ankle or hand swelling (fluid retention)

Serious Side Effects: Call Your Doctor Immediately

Evamist carries FDA-required boxed warnings for the following serious risks. Seek emergency medical care or call your doctor right away if you experience any of the following:

Unusual vaginal bleeding: May indicate endometrial cancer, which is an increased risk with unopposed estrogen use in women who have a uterus

Signs of blood clot (DVT or PE): Leg pain/swelling, chest pain, sudden shortness of breath, coughing up blood

Signs of stroke: Sudden severe headache, vision changes, slurred speech, facial drooping, arm weakness

Signs of heart attack: Chest pain, pressure, jaw or arm pain, shortness of breath, sweating

Breast lumps: Long-term estrogen use (especially combined with progestins) is associated with increased breast cancer risk. Perform monthly self-exams and keep up with annual mammograms

Vision changes: Sudden vision loss or changes may indicate retinal vascular problems

Signs of liver problems: Yellowing of skin or eyes, severe abdominal pain, dark urine

Important: Unintentional Secondary Exposure in Children

Evamist carries a unique boxed warning about secondary exposure. If children come into contact with the skin where Evamist was applied — even after it appears dry — they can absorb estradiol through their skin. This has caused premature breast development in young girls and gynecomastia (breast tissue development) in young boys. To prevent this:

Cover the application site with clothing (long-sleeve shirt) after the spray dries

Do not allow children to touch the inner forearm where Evamist was applied

If contact occurs, wash the child's skin immediately with soap and water

Managing Common Side Effects

Most common Evamist side effects improve within a few weeks as your body adjusts to hormone levels. If side effects are bothersome, your provider may adjust your dose (Evamist can be prescribed at 1, 2, or 3 sprays/day). Do not adjust your dose without guidance from your prescriber. Also review our guides on how Evamist works and Evamist drug interactions to make sure your other medications won't affect how Evamist works.