"i&#039;ve suffered from chronic depression for over 20 years.  i&#039;ve been on a number of antidepressants and nothing has worked long term. i was put on this drug to ease the pain of a back injury and quite surprisingly and unexpectedly my depression symptoms disappeared completely. i became a happy productive individual overnight. amazing!  too bad it&#039;s an addictive opiate, and i imagine that, over time, the benefit would wane."