Interesting cbd thread -- ran across it in my search for cbd info. I've also read a lot of positive info. in regards to using cbd as an anti-psychotic. One thing to keep in mind is that to be effective cbd is given in much higher doses than would be normal for thc.
It seems that for mental help cbd is given without thc, in the range of 300 to 800mg in most studies and even up to 1500 mg. This presents a problem with most of the regular marijuana being grown, in that, to get enough cbd you would also get way to much thc even with most of the newer high cbd strains that normally have at least 5% thc. So even to get the lower end of 300mg of cbd with a strain of ,10% cbd and 5%thc ,you would need to take three grams to get 300mg bcd but you would then also be consuming at least 150mg thc, which would not be to
good for some mental conditions, and 150mg thc could also counter the effects of a large percent of the cbd.
Here are a couple of links I found helpful.
This is the published study from the German ,double-blind randomized clinical trial , that has already been mentioned. I think it may be the most recent study published on cbd, and this link is complete with lots of graphs showing cbd to be equal to one of Europe's best anti-psychotics and also shows few side effects.
http://www.nature.com/tp/journal/v2/n3/full/tp201215a.html
Here is an interesting post I found on the Social Anxiety Support forum. The poster called Cannabidiol started this thread stating that he suffered from paranoid schizophrenia and was part of a clinical study of pure cbd at 600mg per day. He posts several times explaining how it worked for him.
http://www.socialanxietysupport.com/forum/f30/we-need-to-raise-awareness-for-cannabidiol-cbd-186505/