"The first opiate I ever took was codeine....It made me feel right for the first time in my life....I never felt right from as far back as I can remember, and I was always trying different ways to change how I felt. I used lots of drugs, but none of them really did it for me. Codeine was a revelation, and I've been an opiate addict ever since...Opiates have caused me lots of trouble, but what they do for my head is worth it..."

[Thirty-four year old woman quoted in From Chocolate to Morphine (1993) by Andrew Weil and Winifred Rosen]