This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hematinics, Subject name: Pharmacology
[{'content': 'A patient has subclinical folate deficiency. All of the following drugs can precipitate megaloblastic anemia in this patient except: \nSelect and explain. \nA. Alcohol, B. Phenytoin, C. Chloroquine, D. Sulfasalzine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (C) Chloroquine(Ref: Harrison 17/e p649)Megaloblastic anemia can be caused by deficiency of folic acid or vitamin B12 . The drugs that can result in deficiency of folic acid include alcohol, phenytoin and sulfonamides', 'role': 'assistant'}]