The drugs that form complexes with pyridoxal are:: (A) Isoniazid, (B) Penicillamine, (C) Rifampicin, (D) Both A. and B.
Answer is D. 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.