This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'All are used in atrial arrythmias except: \nSelect and explain. \nA. Digoxin, B. Verapamil, C. Quinidine, D. Lignocaine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lignocaine', 'role': 'assistant'}]