Tapentadol
"I started Nucynta 100mg 3x/day because I have severe back problems. Norcos/Vicodin were not working. First day I was on it, it took about an hour to kick in (about 12am I got my prescription at 11pm). I had had bizarre/violent dreams. I took it before work (I didn't drive) and I have a desk job. I spent most of the day drooling. Day 2 great night sleep, no bizarre dreams fell asleep no problem. Went to work and was hot and sweaty (the office was at 69 degrees and it was raining), worst dry mouth you could imagine. No appetite and drank a ton of water. Day 3 diarrhea, sweaty, no appetite. As for the pain management it worked better than Vicodin but I still feel a burning."