Beta-blocker is a medicine for prevention of–

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Heart attack. Beta-blockers are one of the most widely prescribed classes of drugs to treat hypertension (high blood pressure) and are a mainstay treatment of congestive heart failure. Beta-blockers work by blocking the effects of epinephrine (adrenaline) and slowing the heart's rate, thereby decreasing the heart’s demand for oxygen. Long-term use of beta-blockers helps manage chronic heart failure. Beta blockers aren't recommended as a first treatment if one have only high blood pressure. Beta blockers can also affect cholesterol and triglyceride levels.

Beta-blocker is a medicine for prevention of–

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