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': 'Which of the following aminoglycosides is not available for parenteral use? \nSelect and explain. \nA. Sisomycin, B. Amikacin, C. Framycetin, D. Gentamycin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Framycetin o Systemic aminoglycosides - Streptomycin, Amikacin, Gentamycin, Sisomicin, Kanamycin, Netilmicin. o Topical aminoglycosides - Neomycin, Framycetin.", 'role': 'assistant'}]