This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
[{'content': 'All of the following are antiarrhythmic drugs except \nSelect and explain. \nA. Lidocaine, B. Enalapril, C. Atenolol, D. Sotalol', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Refer kDT 7/e p 529 Antiarrhythmic drugs amiodarone (Cordarone, Pacerone) flecainide (Tambocor) ibutilide (Corve), which can only be given through IV. lidocaine (Xylocaine), which can only be given through IV. procainamide (Procan, Procanbid) propafenone (Rythmol) quinidine (many brand names) tocainide (Tonocarid)', 'role': 'assistant'}]