All of the following drugs are Class I anti -arrhythmic drugs EXCEPT:: (A) Quinidine, (B) Procainamide, (C) Flecainide, (D) sotalol
Answer is D. Quinidine and procainamide are class IA drugs, Flecainide is IB drug.propranolol is class II drug. beta blockers are class 2 agents except for sotatolol sotalol-class3 REF.Essentials of Pharmacology KD Tripathi 8th ed.