Adrenergic Agents
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Adrenergic Agents
Latest published update: 30 Jul 2026Exam Points3
View all →Adrenergic agents: classification
They may be classified by action as agonists or antagonists; by receptor as alpha-1, alpha-2, beta-1, beta-2 or beta-3; or by neuronal mechanism as di…
Adrenergic agents: mechanism
Alpha-1 receptors signal mainly through Gq, alpha-2 through Gi, and beta receptors through Gs.
Adrenergic agents: adverse effects and precautions
Toxicity generally reflects excessive receptor stimulation or blockade: hypertension or hypotension, tachycardia or bradycardia, arrhythmia, bronchosp…
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