Which of the following drug DOES NOT cause megaloblastic anemia?: (A) Phenytoin, (B) Chloroquine, (C) Sulfasalazine, (D) Metformin
Answer is B. Agents implicated in drug induced macrocytic anemia are: Phenytoin Azathioprine Metformin Leflunomide Sulfisoxazole Sulfasalazine Mesalamine Zidovudine Trimethoprim Sulfamethoxazole