A research is published by JAMA Internal Medicine, a JAMA Network publication, has found that the long-term use of a calcium-channel blocker to treat hypertension (high blood pressure) is associated with higher breast cancer risk.
The population-based study in the three-county Seattle-Puget Sound metropolitan area included women ages 55 to 74 years: 880 of the women had invasive ductal breast cancer, 1,027 had invasive lobular breast cancer and 856 of them had no cancer and served as the control group.
The researchers measured the risk of breast cancer and examined the recency and duration of use of antihypertensive medications. According to the results, current use of calcium-channel blockers for 10 or more years was associated with higher risks of ductal breast cancer and lobular breast cancer.
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