Which antidysrhythmic agent also dilates coronary arteries, and is frequently used to treat angina?
1. Verapamil (Calan)
2. Amiodarone (Cordarone)
3. Procainamide (Pronestyl)
4. Lidocaine (Xylocaine)
Correct Answer: 1
Rationale: Verapamil is a calcium channel blocker that is often used to treat angina by dilating coronary arteries.
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