Methylcobalamin & Gabapentin is used to treat post-herpetic neuralgia and epilepsy. It contains Gabapentin (anti-convulsant) and Methylcobalamin (Mecobalamin or vitamin B12). Gabapentin works by binding to the specific site on voltage-gated calcium channels; this helps relieve nerve pain and lowers the risk of seizures. Methylcobalamin helps in the rejuvenation and protection of damaged nerve cells by producing a substance called myelin. It is also used to treat alcoholic neuropathy and diabetic neuropathy (nerve damage due to high blood sugar levels).