This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
[{'content': 'Which of the following is the drug of choice for digoxin induced ventricular tachyarrhythmias? \nSelect and explain. \nA. Mexiletene, B. Amiodarone, C. Lignocaine, D. Phenytoin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Lignocaine Treatment for digoxin induced ventricular arrhythmias:* Lidocaine intravenous, repeated as required is the drug of choice. It suppresses the excessive automaticity, but does not accentuate A-V block.* Phenytoin is also effective but seldom used now, because sudden deaths have occurred when it was injected i.v. in digitalis intoxicated patients.* Quinidine and procainamide are contraindicated.", 'role': 'assistant'}]