I started with gabapentin and it worked right away. This was two years ago. My pain has gotten worse and more widespread. I am now on 2700 mg of gaba and started with 300 mg per day. I probably did build up a tolerance to GABA. I am now on Tramadol about 75 to 100 mg per day. I am fairly careful as it has caused nausea and vomiting. I split my 50 mg pills in half. Tramadol has also seemed to work well. It seems like it makes the GABA work better.

I don't consider tolerance the worst thing. I feel the pain relief is worth it. Hopefully, if it happens I can switch to another drug.