This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'A drug that blocks the uptake of dopamine and norepinephrine into presynaptic nerve terminals and also blocks sodium channels in the axonal membrane is: \nSelect and explain. \nA. Cocaine, B. Ephedrine, C. Imipramine, D. Fluoxetine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: It is a local anaesthetic agent (acts by inhibiting Na+ channel in the axonal membrane) that also possesses indirect sympathomimetic activity.', 'role': 'assistant'}]