Codeine is basically morphine, skipping a couple of steps in the liver, neither causes violence, addicted or not. A strong compulsion to get more, due to addiction, will cause theft, through wanting more, not violence, unless thats a part of theft. You said it causes aggression, violence, it doesnt.
[–] [deleted] 0 points 1 point 1 point (+1|-0) ago (edited ago)
[–] fagnig ago
I looked it up, morphine withdrawal might increase aggressive tendencies, but im more prone to believe the individual has a lot more to do with that than withdrawal alone.