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 aminoglycosides is not available for parenteral use? 
Select and explain. 
A. Sisomycin, B. Amikacin, C. Framycetin, D. Gentamycin
C: Framycetin
Answer: C: Framycetin 
Explanation: Ans. is 'c' i.e., Framycetin o Systemic aminoglycosides - Streptomycin, Amikacin, Gentamycin, Sisomicin, Kanamycin, Netilmicin. o Topical aminoglycosides - Neomycin, Framycetin.