beta blocker
US /ˈbeɪtə ˌblɑːkər/
UK /ˈbeɪtə ˌblɑːkər/
1.
any of a class of drugs that prevent the stimulation of the adrenergic receptors responsible for increasing heart rate and blood pressure. Beta-blockers are used to treat angina, hypertension, and other conditions.
:
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The doctor prescribed a beta blocker to help manage his high blood pressure.
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Patients with certain heart conditions may benefit from taking a beta blocker.