Avinerve XT tablet is a combination medication that contains two active ingredients: pregabalin and vitamin B12 (methylcobalamin). Pregabalin is an anticonvulsant medication that is primarily used to treat neuropathic pain, epilepsy, and anxiety disorders. Methylcobalamin, on the other hand, is a form of vitamin B12 that plays a crucial role in the production of myelin, a fatty substance that surrounds and protects nerve fibers.