Frequently Asked Questions
You may have many questions about EVISTA, such as how it works, how and when to take it, interactions with other drugs, and more.
1. What is EVISTA?
EVISTA is a type of prescription medicine called an estrogen agonist/antagonist, commonly called a Selective Estrogen Receptor Modulator (SERM). EVISTA is for women after menopause, and has more than one use: EVISTA treats osteoporosis by helping make your bones stronger and less likely to break; and if you have osteoporosis or are at high risk for invasive breast cancer, EVISTA can be used to lower your chance of getting invasive breast cancer. EVISTA will not totally get rid of your chance of getting spinal fractures or invasive breast cancer.
2. Is EVISTA an estrogen or hormone?
EVISTA is NOT a hormone, like estrogen. It's called an estrogen agonist/antagonist, which means it works 2 ways in your body. EVISTA acts like estrogen in some tissue, and has the opposite effect of estrogen in other tissues.
- In your bones, EVISTA appears to mimic the effect of estrogen
- In your breasts, EVISTA appears to block the effect of estrogen
3. Can EVISTA treat osteoporosis?
EVISTA treats osteoporosis in women after menopause by helping to make bones stronger and less likely to break.
4. Can EVISTA reduce the risk of invasive breast cancer?
If you have osteoporosis, EVISTA can be used to lower your chance of getting invasive breast cancer. EVISTA will not totally get rid of your chance of getting invasive breast cancer. Your doctor can estimate your risk of invasive breast cancer by assessing your personal risk factors. You and your doctor should talk about whether the possible benefit of EVISTA in lowering your chance of getting invasive breast cancer is greater than its possible risks.
5. What are the side effects of EVISTA?
Serious and life-threatening side effects can occur while taking EVISTA. These include blood clots and dying from stroke. Increased risk of blood clots in the legs (deep vein thrombosis) and lungs (pulmonary embolism) have been reported with EVISTA. Women who have or have had blood clots in the legs, lungs, or eyes should not take EVISTA. Women who have had a heart attack or are at risk for a heart attack may have an increased risk of dying from stroke when taking EVISTA.
The most common side effects are hot flashes, leg cramps, swelling, flu-like symptoms, joint pain, and sweating. Hot flashes are more common during the first 6 months after starting treatment. In clinical trials, side effects were usually mild enough that most women did not stop taking EVISTA.
6. How do I take EVISTA?
Take one EVISTA tablet each day. You can take EVISTA any time of day, with or without food (it may be taken along with a calcium supplement, and/or vitamin D), as your healthcare professional prescribes.
7. Can EVISTA be taken with estrogen?
In clinical trials, EVISTA has not been studied in combination with any form of estrogen that comes in a pill, patch, or injection. EVISTA should not be taken with any of these forms of estrogen.
8. Can EVISTA be taken with aspirin or ibuprofen?
There are no data regarding taking EVISTA in combination with aspirin or ibuprofen. You should discuss all medications you are taking, including over-the-counter and herbal medications, with your healthcare professional.
9. How many women have been in clinical trials with EVISTA?
EVISTA has been studied extensively with more than 37,000 women involved in various clinical studies.
10. How many prescriptions have been filled for EVISTA?
Over 64 million prescriptions for EVISTA have been filled since the FDA initially approved it in 1997.
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