Hey WC, It isn't enough on it's own but may complement and work well with other meds. Different strains have various degrees of sedation depending on the person, as LostMyMuchness says. It is worth a careful investigation. MJ is complicated. Hopefully in a few years they will have results of more randomized placebo controlled studies, like this one, but larger and long term. I like the idea of doing scans instead of relying on people's reporting of symptoms, and if it can be used one day to treat psychosis that would be awesome.

as LMM says THC promotes psychosis so one has to deal with CBD and THC differently.