<prompt> Drug of choice for Paroxysmal Supraventricular TachycardiaDigitalisAdenosineAdrenalineVerapamil  <response>: Ref: Katzung 14lh ed. pg. 246; KD Tripathi, 6th ed. pg. 509 518 Paroxysmal supraventricular tachycardia PSVT is sudden onset episodes of atrial tachycardia rate 150-200min with 1:1 atrioventricular conduction An attack of PSVT can be terminated by i.v. injection of verapamil, diltiazem, esmolol or digoxin; but most cardiologists now prefer adenosine. Adenosine has a very short t12 in blood 10sec Almost complete elimination occurs in a single passage through coronary circulation. 