I think it depends how you define addiction, and whether relia ce on any drug has a negative impact on you or anyone around you. As an asthmatic, am I addicted to my steroid/beta agonist med because I can't function without it? Or am I dependent upon it to give me quality of life? The same with Cymbalta keeping my overactive pain signals managed. Or my husband's diabetic meds, numerous family members keeping ADD/ADHD meds that allow them to succeed in school and work.
To me, true addiction ought to be defined as dependence on a substance that impairs one's ability to function and relate to others, or is sought to alter mental state. Dependence on a substance to function and control pain, without making it impossible to manage ones life and deal with others, and without endangering ones health is not that.

A long time ago, I realized there is no shame in using meds to keep living a full life, but I always drew the line at those which made it impossible for me to function safely. It never made sense to me that people would wring their hands in pain instead of taking an aspirin for a bad headache, or refuse blood pressure meds because "I don't take pills" only to suffer an unnecessary stroke...
Sue