What is the difference between “dependent” and “addiction”?

Question by : What is the difference between “dependent” and “addiction”?
This question refers to the need, or use, of certain substances such as opiates.

Best answer:

Answer by Wookie
you answered your own question.

Answer by CTC
Theres no real difference.

HBO: Opiates & Your Brain – HBO documentary about addiction which describes how natural opiates operate in your brain.