Which of the following drugs is used for termination as well as prophylaxis of paroxysmal supraventricular tachycardia?: (A) Digoxin, (B) Verapamil, (C) Propanolol, (D) Quinidine
Answer is B. (Ref: KDT 6/e p517) It is used for the treatment as well as prophylaxis of PSVT whereas adenosine is used only for the treatment of acute attack of PSVT.