<prompt> Class III antiarrhythmic agents are all except ?SotalolAmiodaroneVerapamilBretylium  <response>: Ans. is c i.e., Verapamil o Class III antiarrhythmics are amiodarone, bretylium, dofetilie, Ibutilide.o Sotalol also posses class III activity.o Calcium channel blockers verapamil have class IV activity. 