Pharmacology General 0b17636f Which one of the following drugs does not interfere with folic acid metabolism? A Phenytoin B Gabapentin C Phenobarbitone D Primidone High-Yield Explanation Ans. is 'b' i.e., Gabapentin Antiepileptics interfering with folic acid metabolism. 1. Phenytoin 2. Phenobarbitone 3. Primidone