This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sympathetic System, Subject name: Pharmacology
[{'content': 'The only non-catecholamine sympathomimetic drug out of the following is: \nSelect and explain. \nA. Adrenaline, B. Ephedrine, C. Dopamine, D. Isoprenaline', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Sympathomimetic drug Catecholamines Non catecholamines Endogenous * Adrenaline * Nor adrenaline * Dopamine Exogenous * Dobutamine * Fenoldopam * Isoprenaline Rest all More information:Indirectly acting sympathomimetic drugs are:1. Reuptake inhibitors: Cocaine, TCA.2. Displacement of catecholamines from vesicles:* Tyramine- shows tachyphylaxis.* Ephedrine* Pseudoephedrine', 'role': 'assistant'}]