This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
[{'content': 'The drugs that form complexes with pyridoxal are: \nSelect and explain. \nA. Isoniazid, B. Penicillamine, C. Rifampicin, D. Both A. and B.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Both (A) and (B)Isoniazid (anti-tuberculosis drug) and penicillamine (used to treat rheumatoid arthritis and cystinuria) are two drugs that complex with pyridoxal and pyridoxal phosphate resulting in a deficiency in this vitamin.', 'role': 'assistant'}]