Question

Class II antiarrhythmic drugs are ……… blockers.

• A. Sodium channel
• B. Calcium channel
• C. Potassium channel
• D. Beta adrenergic receptor

Hint:

Class II = Beta blockers = reduce sympathetic stimulation to the heart.

Answer 1

The Correct Option is D

Class II antiarrhythmic drugs are beta-blockers. They act by inhibiting beta-adrenergic receptors, reducing heart rate and myocardial contractility, and are useful in controlling supraventricular arrhythmias.