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Nifedipine is in a class of drugs called calcium channel blockers. Nifedipine relaxes (widens)
your blood vessels (veins and arteries), which makes it easier for the heart to pump and reduces its
workload.
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Diltiazem is in a group of drugs called calcium channel blockers. It works by relaxing the
muscles of your heart and blood vessels.
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Calcium-channel blocking agent; nondihydropyridine-derivative.
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Selective α- and nonselective β-adrenergic blocking agent.
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Metoprolol is in a group of drugs called beta-blockers. Beta-blockers affect the heart and
circulation (blood flow through arteries and veins).
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β 1 -Selective adrenergic blocking agent.
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Calcium-channel blocking agent; dihydropyridine derivative.
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Nitroprusside is a vasodilator that works by relaxing the muscles in your blood vessels to
help them dilate (widen). This lowers blood pressure and allows blood to flow more easily
through your veins and arteries.
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Vasodilating and hypotensive agent.
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Labetalol is in a group of drugs called beta-blockers. Beta-blockers affect the heart and
circulation (blood flow through arteries and veins).
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Propranolol is classified as a beta blocker. It is sold in the United States under the brand name Inderal.
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Nonselective β-adrenergic blocking agent.
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Propranolol is in a group of drugs called beta-blockers. Beta-blockers affect the heart and
circulation (blood flow through arteries and veins).
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Calcium-channel blocking agent; nondihydropyridine.
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Verapamil is in a class of drugs called calcium channel blockers. Verapamil relaxes (widens)
blood vessels (veins and arteries), which makes it easier for the heart to pump and reduces its
workload.
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