This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Antimetabolites and Quinolones, Subject name: Pharmacology
[{'content': 'All of the following drugs are useful in typhoid fever except:- \nSelect and explain. \nA. Cefixime, B. Ceftriaxone, C. Amikacin, D. Quinolones', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Aminoglycosides like amikacin are not effective against enteric fever. Drugs used for enteric fever are Cephalosporins o Ceftriaxone o Cefotaxime o Cefoperazone o Cefixime Fluoroquinolones o Ciprofloxacin o Ofloxacin o Levofloxacin Azithromycin Chloramphenicol Cotrimoxazole', 'role': 'assistant'}]