Quote Originally Posted by sailor jack View Post
You can get a liver transplant but drug induced psychosis cant really be cured
The odds of getting this are slim. Any study looking at the relationship between weed and mental illness always say the same, usually reported as a small footnote - it is rare, indeed in most cases only those with genetic pre dispositions are really at risk, if they smoke lots over a prolonged period of time.

Indeed as coqauvin points out, the ingredient which causes the damage isn't abundant enough in the actual drug, this is the same with other drugs and I do believe that many studies looking at these compounds often use them in concentrated doses, isolated from the acual product you buy off the street (i.e., you don't smoke some weed, but instead take a concentrated dosage of the part of the drug they suspect can cause problems), I know they do this with ecstacy and I am pretty sure it is the same with weed.

Also, I am assuming by this comment that you have never met a full blown alcoholic, whilst they might not have psychosis, they clearly are not fully mentally able.