Off Label use Note: Neurontin and its use in psychiatry to treat patients with treatment-resistant mood and anxiety disorders Other Off Label use Note : Gabapentin has gained widespread use since its entry to the market and a significant portion of this use has been reported as off label, including use for bipolar disorder, neuropathic pain, diabetic neuropathy, complex regional pain syndrome, attention deficit disorder, restless leg syndrome, trigeminal neuralgia, periodic limb movement disorder of sleep, migraine and drug and alcohol withdrawal seizures