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
Prologned treatment with INH leads to deficiency of: 
Select and explain. 
A. Pyridoxine, B. Thiamine, C. Pantothenic acid, D. Niacin
C: Pantothenic acid
Answer: C: Pantothenic acid 
Explanation: Ans. is 'c' i.e., Pyridoxine o Peripheral neuritis associated with isoniaide probably relates to interference with pyridoxine ( vitamin B6).