There are several anti-seizure drugs available for neuropathic pain. One that's used often is Neurontin. However, that's got several side effects that only show after long term use. One is tooth loss. Another is edema. A third is dry mouth, which is what probably leads to the tooth loss and tooth brittleness.
I recomend Topamx. It seems to work just as well as Neurontin, but it doesn't have the side effects.
If you're feeling depressed then I would think you probably need a different anti-depressant. Perhaps Zoloft or Prozac or one of those would work. Or, maybe this stuff my doctor gave me that's good for neuropathy too might work for you. It's called Cymbalta. The only side effect I've had from it is some somnolence the first few days I took it. I also seem to be loosing some weight. And that's not a bad thing.
Good luck sweetie. You'll be in my prayers. Let us know how it goes. Don't forget to keep your pain diary.
Healing hugs and lots of love,
Dan