Verapamil Er Vs Sr

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Verapamil is used to treat high blood pressure. Lowering high blood pressure helps prevent strokes, hearts, and kidney problems. Verapamil belongs to a class of drugs known as calcium channel blockers. It works by relaxing blood vessels so blood can flow more easily. Verapamil may also lower your heart rate..1 Answer - Posted in: verapamil - Answer: There is no difference. SR sustained release tablets are ER extended .Verapamil Calan, Verelan, Calan SR, Isoptin Considerations for Use*. US/FDA Approved Indication: Heart Rate Control for Atrial Fibrillation. Mechanism of Action. Blocks calcium-dependent contractions in cardiac and peripheral smooth muscle leading to vasodilation; slows cardiac conduction through SA node. Dosing..