I was on gapapentin (neurontin) with my first neuro. My current neuro started me on baclofen when spasticity reared it's ugly head...did zero for me.

Then he prescribed the generic of zanaflex (tablets). Again did zero for me. In his experience, when baclofen and the gen of zanaflex doesn't work, he prescribes the capsule form of zanaflex.
He tells me to use gabapentin when I have to go on a requip holiday (a drug for restless leg syndrome). Otherwise I stay away from it. you need to wean off of it gradually and not stop cold turkey. It didn't really help any with the neuropathic pain I experience.

Hope you find some relief...I heard that TN can be a bear to live with...