<p>Tamoxifen is indicated to treat estrogen receptor positive metastatic breast cancer in adults, as an adjuvant in the treatment of early stage estrogen receptor positive breast cancer in adults, to reduce the risk of invasive breast cancer after surgery and radiation in adult women with ductal carcinoma in situ.<sup class="text-reference-group"><a class="reference-popover-link" data-content="FDA Approved Drug Products: Tamoxifen Oral Solution" href="#reference-L7802">16</a></sup></p>