DS23 has ADHD (medicated), anxiety and depression (also medicated) and is taking ketamine and I think cocaine plus he drinks. He is in his final year at university and his friends all seem to take drugs. He is home for Easter and he came down to dinner last night, obviously high - he blamed the prescribed diazepam but I am fairly sure it was ketamine. He talks about rehab after he finishes uni but I don't believe he really wants to quit. He lies all the time. He gets money from his Dad who lives overseas or his friends will buy him drugs so he can join the party.
I don't know what to do or where to go for support.