"A total of 1 486 800 prescriptions for methadone were issued in 2003" and "A total of 1 486 800 prescriptions for methadone were issued in 2003"
These are both methadone substitutes.
I have done time in community psychiatry and addiction psychiatry.
My best friend is a psychiatrist that spends a lot of time with drug addicts.
I have seen the results, and the HUGE costs, with my own eyes.