Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Prempro (conjugated estrogens/medroxyprogesterone) and Vivelle-Dot (estradiol) are both hormone replacement medications used to treat menopause symptoms like hot flashes and vaginal dryness, as well as to prevent bone loss (osteoporosis) after menopause. However, they differ in several ways. Prempro is a combination of estrogen and progestin, taken orally once a day, and is available only as a brand-name medication. In contrast, Vivelle-Dot is an estrogen-only patch applied to the skin twice a week and is available as a generic called Dotti. Prempro includes a progestin, which is important for people with a uterus to help protect against uterine cancer. Vivelle-Dot does not contain a progestin, so if you have a uterus you may need to take progestin separately. Both medications can cause headaches and breast pain or tenderness and increase the risk of serious side effects like blood clots and certain cancers. However, Vivelle-Dot is generally considered to have fewer side effects than oral hormone replacement medications.
Premarin
Vivelle-dot (estradiol patch)
Premarin
Vivelle-dot (estradiol patch)
Summary of Premarin vs. Vivelle-Dot
Summary for Estrogen replacement
Prescription only
Premarin (conjugated estrogens) is an oral estrogen hormone tablet that's used to treat various conditions in adults. Most commonly, it relieves menopausal symptoms such as vaginal dryness and hot flashes. The medication is also used for treating low estrogen levels, certain advanced stages of breast or prostate cancers, and osteoporosis after menopause. Depending on what you're using it for, the medication can be taken daily or in cycles. Side effects include headache, stomach pain, nausea, and breast pain.
Summary for Estrogen replacement
Prescription only
Vivelle-Dot (estradiol patch) is a twice-weekly hormonal patch used to treat menopause symptoms and low estrogen levels. It also helps prevent bone loss (osteoporosis) in people who have gone through menopause. The patch is a form of hormone replacement therapy. The usual dose is one patch applied to the lower stomach or buttocks twice a week, or every 3 to 4 days. Side effects include headache, breast pain, and sinus swelling.
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This twice weekly patch is also available as a generic called Dotti.