<prompt> Which of the following drugs is used for termination as well as prophylaxis of paroxysmal supraventricular tachycardia?DigoxinVerapamilPropanololQuinidine  <response>: Ref: KDT 6e 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. 