Gabapentin activates spinal noradrenergic activity in rats and humans and reduces hypersensitivity after surgery.
Hayashida K, DeGoes S, Curry R, Eisenach JC. Gabapentin activates spinal noradrenergic activity in rats and humans and reduces hypersensitivity after surgery. Anesthesiology. 2007 Mar; 106(3):557-62.