Antiarrhythmics

Class IC antiarrhythmics

FEP
F - flecainide
E - encainide
P - propafenone

[no effect on Action Potential Duration]


Class III antiarrhythmics

BASI 
B - bretylium
A - amiodarone
S - sotalol
I - ibutilide


[K blockers-increase Action Potential Duration, ERP, QT]