Can you still get cancer while taking tamoxifen? - Myths about oncology
Does tamoxifen stop cancer from coming back?
Can you still get breast cancer on tamoxifen?
Is tamoxifen effective in prevention of breast cancer?
Tamoxifen is an effective hormone therapy used to treat hormone receptor-positive breast cancer. It can greatly reduce the risk of cancer recurrence and invasive cancer.
But women who used tamoxifen for five or more years were about four times more likely than women who never used breast cancer hormone therapies to develop an ER-negative tumor in their other breast. Tamoxifen use for less than five years wasn’t linked to ER-negative breast cancer risk.
Overall, these studies suggest that tamoxifen can prevent hormone-positive breast cancers from developing in women at risk for the disease. In general, tamoxifen reduces the risk of developing breast cancer by at least one-third. Tamoxifen can be used in women before and after menopause.
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