. . . . "02832168-n"^^ . "0"^^ . . . . "beta-blocking agent"@en-us . "0"^^ . . "102732374"@en-us . "beta blocker"^^ . "102832168"^^ . "any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system"@en-us . . . "beta-adrenergic blocker"@en-us . . . "beta blocker"@en-us . "beta-adrenergic blocking agent"@en-us . .