I,III, anticholinergic
quinidine
I,III, can promote reentrant arrhythmias
fleicanide
I,II, mild beta blocker effect
Propafenone
I-IV, multiorgan toxicity
Amiodarone
II-III, prominent beta blocker effect
Sotalol
III, prolongation of QT at slower heart rates
Dofetilide
I-IV, mild effect
Dronedarone
III,used only for active cardioversion
Ibutilide
II, III, acts also on late Na channels
Ranolazine
I, used for reperfusion arrhythmias
Lidocaine