Skip to content

Breast Cancer Health Center

Font Size

Tamoxifen for Breast Cancer Treatment, Prevention

What are the side effects of tamoxifen?

When a woman takes tamoxifen to treat breast cancer, most doctors agree that the benefits of the drug are much greater than the possible risks of taking it. Some experts believe that women who take it to prevent the disease should think carefully about the pros and the cons, like the cost of the drug and its side effects, which can be serious.

Side effects of tamoxifen include:

Milder side effects include symptoms that are similar to menopause, such as:

Tamoxifen may also cause irregular periods and sexual problems.

If you’ve been diagnosed with breast cancer or you’re at high risk for the disease, talk with your doctor to see if tamoxifen is right for you. Together, you can weigh the benefits and risks of this drug to make sure you get the healthiest result.

WebMD Medical Reference

Reviewed by Melinda Ratini, DO, MS on September 02, 2014
1 | 2

Today on WebMD

Breast Cancer Overview
From self-exams and biopsies to reconstruction, we’ve got you covered.
Dealing with breast cancer
Get answers to your questions.
woman having mammogram
Experts don’t agree on all fronts, but you can be your own advocate.
woman undergoing breast cancer test
Many women worry. But the truth? Most abnormalities aren’t breast cancer.
Breast Cancer Treatments Improving
Resolved To Quit Smoking
Woman getting mammogram
Screening Tests for Women
ovarian cancer overview slideshow
serious woman
what is your cancer risk
10 Ways to Revitalize Slideshow