Which of the following is a non-selective beta-blocker that also possesses Class III antiarrhythmic properties by blocking potassium channels?
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Correct answer: Sotalol
Sotalol is a unique agent that exhibits both non-selective beta-blockade (Class II) and prolongation of the action potential duration (Class III). It is primarily used for the maintenance of sinus rhythm in patients with atrial fibrillation.
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