This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Prolonged use of one of the following anticonvulsant can produce weight loss - 
Select and explain. 
A. Gabapentin, B. Oxcarbazepine, C. Topiramate, D. Valproic acid
C: Topiramate
Answer: C: Topiramate 
Explanation: Ans. is 'c' i.e., Topiramate o Use of topiramate is limited by its unwanted side effects paicularly weight loss, sedation and naming difficulties. Note - Other drug causing weight loss is Felbamate.