This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
Drug of choice for supraventricular tachycardia is: 
Select and explain. 
A. Verapamil, B. Diltiazem, C. Digoxin, D. Phenytoin
A: Verapamil
Answer: A: Verapamil 
Explanation: Ans. (A) Verapamil(Ref: Katzung 11th/e p243-244, KDT 8th/e p580-581)*Adenosine is DOC for PSVT termination.*Verapamil is DOC for prophylaxis of PSVT and for management of sustained supraventricular tachycardia.