Tamoxifen has been used to treat both advanced and early stage breast cancer. It slows or stops the growth of cancer cells that are already present in the body, helps prevent the original breast cancer from returning and also helps prevent new cancers from developing in the opposite breast. Tamoxifen is also being studied to determine its usefulness in other types of cancer. As you read this keep in mind that each individual's experience will vary. If you have questions, please ask.
Tamoxifen is taken by mouth every day.
Tamoxifen is generally given for 2-5 years. Women may take tamoxifen for varying lengths of time depending on their response to prior treatment and other factors such as disease status. This means that women who take tamoxifen may experience the positive effects of menopausal estrogen replacement therapy. Tamoxifen may make premenopausal women more fertile. You are advised to use some form of contraception to avoid becoming pregnant during therapy.