High blood pressure (hypertension) - Treatment - NHS
Oct 23, 2017 · Calcium channel blockers. Calcium channel blockers reduce blood pressure by widening your blood vessels. Common examples are amlodipine, felodipine and nifedipine.Other medicines, such as diltiazem and verapamil, are also available.. Possible side effects include headaches, swollen ankles and constipation.
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