I have been treated with this drug. It has been helpful for sleeping and reducing clenching. Taken as an add-on to Neurontin or another anti-convulsant, it can be very helpful with the pain. You have to give it some time. Unfortunately, it often causes weight gain. That happened very quickly for me.
I have been on this since Dec. last year, and it's great!!!! I can sleep through the night, no clenching and it's helped with the depression I was feeling due to the pain I was in.I've heard it helps with pain relief, but don't use it for that, so I can't say for sure. I haven't had any weight gain with it. But, then again, I couldn't chew for 6 of those months, so how could I gain weight?