Gabapentin 600mg is used to prevent migraines and treat neuropathic pain, which occurs due to nerve damage or dysfunction. Commonly prescribed for conditions like diabetic neuropathy and post-herpetic neuralgia, it helps reduce the severity of nerve-related pain. In migraine prevention, gabapentin works by stabilizing overactive nerve signals in the brain, though it is not a first-line treatment for migraines. It calms nerve activity by affecting neurotransmitters, providing relief from both nerve pain and recurring migraines, enhancing the quality of life for those affected.