<prompt> Drug of choice for maintenance therapy in PS VT is-AmiodaroneLignocaineVerapamilAdenosine  <response>: Ans. is c i.e., Verapamilo Amongst the options provided Verapamil is the drug of choice for maintenance therapy in pateints with PSVT.Treatment options fyrSupraventricular Tachycardia o Physiologic intervention Rest Valsalva maneuvers : Gag reflex, ice packs, etc Carotid massage Avoidance of inciting factors : Caffeine, tobacco, alcohol, pseudoephedrine, stress, etc.o Medications Drugs with direct effect on artrioventricular node or accessory pathway: Amiodarone Cordarone, Sotalol Betapace, class IC drugs flecainide , propafenone , etc. Drugs that work primarily on atrioventricular node: Adenosine Adenocard, calcium channel blockers, beta blockers, digoxin Lanoxin. Drugs that work primarily on accessory Pathway: Class IA drugs quinidine, disopyramide , etc.o Radiofrequency ablationo Electronic pacing PSVT No limbing symptoms No Pre-excitation Mild to miderate symptoms No Pre-excitation Severe symptoms or Pre-excitation NoTherapyPotentPreferenceCatheterAblation Unsuccessful Drug TherapyUnsuccessful ---Catheter Ablation 1 Drug Therapy 