This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy: General Principles, Subject name: Pharmacology
Which of the following antitubercular drugs can be used in patients with hepatic dysfunction? 
Select and explain. 
A. Streptomycin, B. INH, C. Pyrazinamide, D. Rifampicin
A: Streptomycin
Answer: A: Streptomycin 
Explanation: Ans. (A) Streptomycin(Ref: KDT 8th/e p820)Ethambutol and streptomycin are first line anti-tubercular drugs that are NOT hepatotoxic.