This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
[{'content': 'Bupivacaine poisoning is treated with: \nSelect and explain. \nA. Esmolol, B. Sotalol, C. Lignocaine, D. 5% dextrose', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bupivacaine causes more toxicity than other drugs in its therapeutic dosage. Hence in poisoning cardiovascular side effect would be profound and is treated with a cardio selective beta blocker that is esmolol. Sotalol is no a cardio selective beta blocker. Lignocaine is a local anesthetic that can fuher aggravate cardio toxicity. From padmaja 4th edition Page no 202', 'role': 'assistant'}]