Diabetic Peripheral Neuropathy
"Unexpectedly found this page, and read other responses to see others experience with Nucynta. I have been on various doses ranging from 600mg per day (all 100&#039;s) to currently taking two 100 extended release tablets per day. My experience has lasted six years now. 
From the very start I loved it because it was effective for my neuropathy. The big bonus was that after a while, say month or two, I was completely confident in my ability to concentrate and do my very detailed work. Now that said, while on the max dose of 600mg I would definitely feel the effects every time I dropped a 100mg. This was the beginning. 
As the dose went down, the ability to concentrate got better and better. my biggest problem was finding a drug store that kept in stock."