What is the difference between addiction, physical dependence, tolerance, and pseudoaddiction?
To help clarify this question a consensus document was developed by the American Academy of Pain Medicine, the American Pain Society, and the American Society of Addiction Medicine in 2004. They have agreed upon the following definitions for addiction, physical dependence, tolerance, and pseudoaddiction. For a more in-depth explanation you can go to Chapter One in Managing Pain and Coexisting Disorders: Using the Addiction-Free Pain Management System.