This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
[{'content': "An antiepileptic drug 'A' can also be used for the treatment of post-herpetic neuralgia and pain due to diabetic neuropathy. Which of the following can be the agent 'A'? \nSelect and explain. \nA. Carbamazepine, B. Gabapentin, C. Lamotrigine, D. Primidone", 'role': 'user'}, {'content': 'Answer: B \nExplanation: (Ref: KDT 6/e p409, 410) Gabapentin and progabide act by increasing the release of GABA. Gabapentin is the drug of choice for post-herpetic neuralgia and diabetic neuropathy.', 'role': 'assistant'}]