| What is Tamoxifen? |
Tamoxifen is in a class of drugs called selective estrogen receptor modulators. Approximately 65% of breast cancers are estrogen positive. Tamoxifen binds to estrogen receptors on the cancer’s cell walls preventing estrogen from stimulating the cancer cells to grow. It has also been shown to reduce the likelihood of cancer in high-risk patients. It has significant side effects, so a risk/benefit discussion is important between physician and patient prior to implementing its use.
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