This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Arrhythmias, Subject name: Medicine
[{'content': 'Drug of choice for paroxysmal supraventricular tachycardia is? \nSelect and explain. \nA. Metoproloi, B. Amiodarone, C. Adenosine, D. Lidocaine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ANSWER: (C) AdenosineREF: Harrison\'s Principles of Internal Medicine 17th ed chapter 226See APPENDIX-40 for "DRUGS USED IN ARRHYTHMIAS" DoseIndicationSide effectsAdenosine6-18 mg (rapid bolus)Terminate reentrant SVT involving AV nodeCough, flushingSVT - SUPRA VENTRICULAR TACHYCARDIA', 'role': 'assistant'}]