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: Unknown
[{'content': 'The following local anesthetic raises BP instead of tending to cause a fall \nSelect and explain. \nA. Cocaine, B. Dibucaine, C. Lignocaine, D. Procaine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: All LA’s cause hypotension except cocaine.\nCocaine increases blood pressure by inhibiting the reuptake of catecholamines.', 'role': 'assistant'}]