Folate deficiency occurs due to: (A) Phenytoin, (B) Phenbarbitone, (C) Primidone, (D) All
Answer is D. Phenytoin , phenobarbitone and primidone(metabolized to phenobarbitone in body ) causes megaloblastic anemia as phenytoin decreases absorption and increases excretion of folate ref KD TRIPATHI 8TH ED.