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
Which of the following drugs is not used in the treatment of leprosy ? 
Select and explain. 
A. Rifampicin, B. Dapsone, C. Kanamycin, D. Clofazimine
C: Kanamycin
Answer: C: Kanamycin 
Explanation: None