| Effect | Increase |
| Values | A single study found that pharmaceutical THC:CBD had no effect on positive symptoms (such as hallucinations), but worsened negative symptoms (such as reduced emotional expression, motivation, and spontaneous speech). |
| Trial Design | Meta analysis |
| Trial Length | n/a |
| Number of Subjects | 2067 |
| Sex | Both Genders |
| Age Range | 18-29, 30-44, 45-64, 65+ |
This meta-analysis included 40 randomized controlled trials related to the use of cannabis, THC, and CBD in Depression, Anxiety, ADHD, Tic/Tourette syndrome, PTSD, and Psychosis.
