Nucynta ER
"Take it for back pain as needed. 100mg dose. It works but it makes you tired. No pain. Some days I can't even get up cause of my back pain. Only problem is when I don't take it (I try not to use pain meds too much) I get really sick. Maybe its withdrawal. That part isn't fun. But after 3 days or so of not taking it, I'm back to normal"