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beta blocker

beta blocker A beta blocker is a natural or synthetic drug that blocks beta-adrenergic activity in the sympathetic nervous system, reducing the effects of those signals.

A beta blocker is a natural or synthetic drug that blocks beta-adrenergic activity in the sympathetic nervous system, reducing the effects of those signals. In mental health contexts, it may be used to help with anxiety.

Also see

Sources

Drafting source: NCI Thesaurus. Flat export snapshot 2026-10-18. “Beta-Adrenergic Antagonist” (C29576).
CC-BY-4.0 · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: b27ca135beadd46c343d248135377c5077c5447fe11b93803bfab866b84fcd38

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PsychTerms (psychterms.org), CC BY 4.0, version 1. “beta blocker.” Development preview.

Version 1 · SHA-256: 5a718ac36e614aeab65af1b81ef2dd9277b618097acc5dd70be2ec2c97691e2a

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