I was on 90 mg methadone for two years and then Dr. left all patients high and dry. Rheumatologist put me on Nucynta 200mg twice a day and it is horrible im constantly on the edge of withdrawal sweats,chills, nausea, uncontrolled running nose and when it gets real bad uncontrolled snezzing as many as 30 times in a row,diarhea on and on. they refered me fto a pain dr and he never asked about meds said I need physical rehab which would get a lot worse before better. I have psoriatic arth and lumbar problems with L3,4,5