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Breast cancer prevention drug gives lasting protection, study finds
Breast cancer prevention drug gives lasting protection, study finds

Taking the cancer drug tamoxifen for five years drives down the incidence of breast cancer in women at high risk for the disease by close to 30%, researchers have found. And the medication's protective effects against breast cancer appear to last, unabated, for as long as 16 years after a woman stops taking it, a new study says. The long-awaited IBIS-I trial (short for International Breast Cancer Intervention Study-I) found that tamoxifen was even more effective in preventing breast cancer in women who did not take hormone replacement medications. Women who took tamoxifen and did not take concurrent replacement hormones had a 38% decline in breast cancer diagnoses of any genetic...

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