Both the medicines work effectively inreducing neuropathic pain. Gabapentin relieves pain arising due to nerve damage, compression in nerves and nortriptyline acts on the central nervous system and offers relief from neuropathic pain.
Common side effects
Constipation, Difficulty in urination, Weight gain, Sleepiness, Dizziness, Tiredness, Blurred vision, Dryness in mouth, Orthostatic hypotension (sudden lowering of blood pressure on standing), Increased heart rate, Uncoordinated body movements