According to the National Cancer Institute (NCI), yes, it can.
In an NCI-sponsored randomized clinical trial called the Breast Cancer Prevention Trial, it was found that when taken for 5 years, tamoxifen reduces the risk of developing invasive breast cancer by about 50% in postmenopausal women who were at increased risk.
A subsequent large, randomized trial (also sponsored by NCI) of Tamoxifen and Raloxifene found that 5 years of raloxifene (a SERM) reduces breast cancer risk in such women by about 38%.
Because of these trials, both tamoxifen and raloxifene have been approved by the FDA to reduce the risk of developing breast cancer in women at high risk of the disease.
At Hormone Therapy Institute, we’re dedicated to helping women age gracefully, beautifully, and confidently. If you’re experiencing Hormonal Imbalances that are getting in the way of your day-to-day life, we have just the thing that can help.