"i have been taking nucynta as needed for chronic back pain caused by a congenital disorder for almost 4 months now, and it is a life saver.  pain control is much better than anything over the counter, tylenol with codeine, and vicodin, with none of the awful side effects i get with those pain medicines.  i have been taking it on and off as needed, and i have not developed any dependence.  the effects are greatly improved by taking cymbalta as well.  great medicine for me."