This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Drugs causing pyridoxine deficiency are the following except 
Select and explain. 
A. Hydralazine, B. Griseofulvin, C. Cycloserine, D. Penicillamine
B: Griseofulvin
Answer: B: Griseofulvin 
Explanation: .