Nervigesic 300 Tablet is a nerve pain medicine that is given by a doctor. Regulates the movement of calcium channels in neurons, which reduces pain. This medicine also protects nerve capillaries and heals nerve cells that have been injured. The nervigesic 150mg tablet is a prescription combination used to treat nerve damage caused by diabetes, shingles, or spinal cord injury that causes persistent (ongoing) pain. Reduces pain and accompanying symptoms, such as changes in mental state, sleep problems, and tiredness.