"i&#039;ve been on nucynta for just over a year.  i started with the typical meds for back pain vicodin, percocet, morphine, etc.  unfortunately i seem to either have massive bad reactions or they don&#039;t work, no in between.  because of this my pain wasn&#039;t controlled and it was having a toll on me physically and emotionally.  nucynta has allowed me to rebuild my life and body.  i had some side effects at first but my doctor started on low doses and slowly built up the dose to where it got my pain to a tolerable level.  i found that the regular nucynta caused to much of an up and down in pain levels but the er took care of that. like everything it is an individual reaction."