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
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