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': 'Which of the following drug is not an ionotropic drug \nSelect and explain. \nA. Amrinone, B. Isoprenaline, C. Amiodarone, D. Dopamine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Refer kDT 7/e p 519 Examples of positive inotropic agents include: Digoxin. Berberine. Calcium. Calcium sensitisers. Levosimendan. Catecholamines. Dopamine. Dobutamine. Dopexamine. Epinephrine (adrenaline) Isoprenaline (isoproterenol) ... Angiotensin II. Eicosanoids. Prostaglandins. Phosphodiesterase inhibitors. Enoximone. Milrinone. Amrinone. Theophylline. Amiodarone is an antiarrhythmic medication used to treat and prevent a number of types of irregular heabeats. This includes ventricular tachycardia, ventricular fibrillation, and wide complex tachycardia, as well as atrial fibrillation and paroxysmal supraventricular tachycardia', 'role': 'assistant'}]