VERAPAMIL
CLASS- 4 Antiarrhythmic drugs
V- control VENTRICULAR rate in AF or AFI
E- ERP increased (A-V nodal)
R- RR interval increased; Reccurent arrhythmia
A- Antiarrhythmic
P- PSVT; PR interval increased
A- Automacity decreased
M- Muscle relaxant
I - negative Ionotropic action
L - action on L-type Ca channel