This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hypeension, Arrhythmias, Dyslipidemia, Subject name: Pharmacology
[{'content': 'DOC for ventricular arrhythmias due to digitalis toxicity is: \nSelect and explain. \nA. Lignocaine, B. Quinidine, C. Amiodarone, D. Verapamil', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ventricular arrhythmias due to digitalis toxicity Lidocaine i.v. repeated as required is the drug of choice It suppresses the excessive automaticity but does not accentuate A-V block Quinidine, Procainamide, and propafenone are contraindicated Note: Lignocaine is DOC but 2nd alternative option is Phenytoin for digitalis-induced ventricular arrhythmias', 'role': 'assistant'}]