"i am a register nurse working 12 hour shifts.  tugging pulling.  i fell back in 1998 and damaged both of my knee&#039;s severely.  i have taken many different medications to control my chronic pain.  i have been taking nucynta 75mg every 6 hours since summer 2015.  not all of my pain is gone, but i can tolerate more activity.  my life has improved greatly.   it is great that i do not have to burn up my liver with tylenol.  like all medications; it is not for everybody.  it works with my body chemistry.   my pain levels are low enough where i can sleep."