Use
Ibutilide, N-{4-[4-(ethylheptylamino)-1-hydroxybutyl]phenyl}methanesulfonamide (Corvert), aclass III antiarrhythmic belonging to the methanesulfonanilideclass of agents, is indicated for rapid conversion ofatrial fibrillation or atrial flutter to normal sinus rhythm.Unlike dofetilide, it is not highly specific for the delayedrectifier potassium currents (Ikr) and does have some affinityfor sodium channels.