I have taken both.
With gabapentin, however, I would get short of breath. I dealt
with it for a while but then the medicine stopped working.
I am now taking lyrica, it works for the burning that I have, doesn't take it away but makes it tolerable.
I have also been on carbamazapine, and like with the neurontin it stopped woking after a while.
I think that our bodies just get use to the medicine and it no longer works, so for me it is better to do them in cycles.