This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
[{'content': 'A drug that blocks the uptake of dopamine and norephinephrine into presynaptic Nerve terminals and also block sodium channels in the axonal membrane is \nSelect and explain. \nA. Cocaine, B. Ephedrine, C. Imipramine, D. Floxentine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref-KDT 6/e p117 It is a local anaesthetic agent(act by inhibiting Na+ channel in the axonal membrane) that also possess indirect sympathomemtic activity', 'role': 'assistant'}]