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    Adrenergic Antagonists (Sympatholytics)

    Adrenergic antagonists are also referred to as sympatholytics because they lyse, or block, the effects of the sympathetic nervous system. They react with specific adrenergic receptor sites without activating them, thus preventing the typical manifestations of SNS activation.

    Antiarrhythmic Drugs

    Antiarrhythmics address arrhythmia by altering cells’ automaticity and conductivity. Includes Class IA, IB, IC, II, III, and IV.

    Antianginal Drugs

    Learn about antianginal drugs, nitrates, beta-blockers, and calcium channel blockers in this simplified guide for nursing pharmacology.