MSFinals-5381

A 35-year-old unemployed man visits his GP seeking assistance with his heroin addiction. He has been using heroin for more than a year after a friend suggested trying the drug after a night out. As a result, he has frequently used heroin. He has lost his job, ended his long-term relationship, and is currently sleeping on his friend’s couch.

A few months ago, he attempted to quit because he wanted to turn his life around, but he found the withdrawal symptoms too difficult to handle and ended up using heroin again. He is eager to try and quit drugs, but he feels he cannot do it without some form of assistance.

Which of the following can be used for substitution therapy in opioid-dependent patients?