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'?: (A) Carbamazepine, (B) Gabapentin, (C) Lamotrigine, (D) Primidone
Answer is B. (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.