This estradiol patch dosage guide covers the seven strengths used in the United States, from 0.014 to 0.1 mg/day. The number printed on your patch is a daily delivery rate — how much estrogen passes through your skin in 24 hours — not the total amount of drug inside. Over the last year, the supply of FDA-approved estradiol transdermal patches has nearly doubled. Manufacturers continue to take steps to make more patches available. The estrogen patch is a form of hormone replacement therapy (HRT) that delivers a steady dose of estradiol (e2) through your skin to your bloodstream. Estradiol patches can ease menopause symptoms like hot flashes, night sweats, and sleep trouble, and help prevent bone loss. An estradiol patch reduces the number and severity of hot flashes caused by menopause. If you have a hot flash, you’ll experience a sudden flare of heat, sweating and flushed skin. Estradiol patches (Climara, Vivelle-Dot, and others) are commonly used to help manage menopause symptoms, such as hot flashes. Common estradiol patch side effects include skin irritation, headaches, and breast tenderness. Estradiol transdermal skin patches are used to treat certain symptoms of menopause such as hot flashes, and vaginal dryness, burning, and irritation. estradiol transdermal is also used to prevent postmenopausal osteoporosis, or to treat ovarian disorders. What is Estradiol Patch? Estradiol is a form of estrogen, a female sex hormone produced by the ovaries. Estrogen is necessary for many processes in the body. Estradiol Patches are used to treat certain symptoms of menopause such as hot flashes, and vaginal dryness, burning, and irritation. Most menopause-literate clinicians in 2026 prescribe transdermal estradiol — usually the patch — before any other systemic estrogen. The reason is mechanical: by delivering estradiol through the skin, the patch bypasses the liver's first-pass metabolism. Estradiol transdermal gel, patch, and spray are used to treat moderate to severe symptoms of menopause (eg, feelings of warmth in the face, neck, and chest, or sudden strong feelings of heat and sweating [hot flashes]) in women with a uterus. What is an estradiol patch? An estradiol patch is a type of hormone replacement therapy (HRT) used to treat symptoms of menopause, like hot flashes and vaginal dryness or itching. The patch releases a continuous dose of estrogen that is absorbed transdermally, or through the skin.