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 young male presents with meningococcal meningitis and allergy to penicillin. Which is the most suitable drug? \nSelect and explain. \nA. Chloramphenicol, B. Meropenem, C. Ciprofloxacin, D. Teicoplanin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Chloramphenicol which is bactericidal to meningococci can achieve high concentration in the CSF, so useful in the treatment of meningococcal meningitis in penicillin resistant individuals. Ref: Essentials of Medical Pharmacology By KD Tripathi, 5th Edition, Page 674 - 5; Principles And Practice of Clinical Bacteriology By Stephen H. Gillespi, 2nd Edition, Page 215.', 'role': 'assistant'}]