This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Renal stones are seen as a complication by using the following drug 
Select and explain. 
A. Tiagabine, B. Oxacarbamazepine, C. Zonisamide, D. Phenytoin
C: Zonisamide
Answer: C: Zonisamide 
Explanation: Side effects of zonisamide are metabolic acidosis, renal stones, somnolence, dizziness, headache, irritability and anorexia. REF; KD TRIPATHI 8TH ED.