Harvard Health Letter

Beta blockers

Beta blockers are prescribed for conditions ranging from high blood pressure and glaucoma to anxiety attacks and migraines. They are primarily prescribed to help control hypertension and abnormal heart rhythms, but are also widely prescribed to prevent further heart problems in patients who've had heart attacks or who are suffering from heart failure. Each type of antihypertensive drug works a little differently. Your specific medical needs will help dictate which class of antihypertensives your doctor prescribes. 
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