This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
All of the following fluoroquinolones have been withdrawn Except 
Select and explain. 
A. Trovafloxacin, B. Gatifloxacin, C. Gemifloxacin, D. Grepafloxacin
C: Gemifloxacin
Answer: C: Gemifloxacin 
Explanation: Except for Gemifloxacin, all others have been withdrawnTrovafloxacin due to hepatotoxicityGatifloxacin due to hypo/hyperglycemiaGrepafloxacin due to adverse cardiac events