<prompt> Which of the following anti-arrhythmic drugs is useful in AV block resulting from digoxin overdose?AdrenalineNoradrenalineAtropineAdenosine  <response>: Treatment of digoxin toxicity: Mild digitalis toxicity Decreased with K It decreases binding of the drug to NaKATPase but in severe digitalis toxicity, K is CI Ventricular arrhythmias Lignocaine Atrial tachyarrhythmia b blockers Bradyarrhythmias and AV block Atropine Very severe toxicity Digibind 