Gabapentin 400 mg is a prescription-strength medication used to manage conditions involving abnormal nerve activity. It belongs to the anticonvulsant class of drugs and is widely prescribed for neuropathic (nerve) pain and as an adjunct treatment for certain seizure disorders. The 400 mg dose is often used when lower strengths do not provide adequate symptom relief, and it is typically reached through gradual dose adjustment under medical supervision.Gabapentin 400 mg is available in capsule or tablet form and is usually taken one to three times daily. Dosing schedules depend on the condition being treated, kidney function, and patient tolerance. Healthcare providers often begin treatment with a lower dose and increase gradually to minimize side effects such as dizziness or drowsiness. Consistency is important, and doses should be taken at the same times each day to maintain stable medication levels.Gabapentin works by influencing calcium channels in nerve cells, which helps reduce excessive electrical signaling in the nervous system. This mechanism makes it particularly effective for nerve-related pain conditions such as diabetic neuropathy, post-herpetic neuralgia following shingles, nerve compression syndromes, and pain associated with spinal cord injuries. Unlike traditional pain relievers, Gabapentin addresses the source of nerve pain rather than inflammation or acute tissue damage.