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beta blocker |
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Beta blocker A drug that can be used to reduce blood pressure. Mentioned in: Mitral Valve Stenosis beta blocker, a popular term for a beta-adrenergic blocking (or beta receptor antagonist) agent. See antiadrenergic. beta blocker Beta-adrenergic blocking agent Pharmacology Any of a class of agents that blocks β1 and/or β2 adrenergic receptors in the nervous system Effect ↓ Heart rate, ↓ BP, ↓ anxiety
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For example, a nonspecific beta-receptor antagonist could prevent relaxation of the vascular smooth muscle in the exercising muscle by blocking beta-2 receptors. |
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