Most characteristic arrhythmia seen with Digoxin toxicity is
Atrial tachycardia (because of increase intracellular calcium levels) and AV nodal blockade (because of parasympathomimetic activity) is the most characteristic arrhythmia seen with Digoxin toxicity.
But Ventricular bigeminy is the most common arrythmia seen with Digoxin toxicity.
Ventricular Extrasystoles
Ventricular bigemini
Atrial tachycardia with AV nodal block
Atrial flutter