03/21/2026
In one of the largest systematic reviews conducted on medical cannabis and psychiatric disorders, "investigators found no link between cannabinoids and improved outcomes in anorexia nervosa, anxiety, posttraumatic stress disorder (PTSD), and opioid use disorder, and data were deemed insufficient for links with attention-deficit/hyperactivity disorder (ADHD), depression, obsessive-compulsive disorder (OCD), and bipolar disorder outcomes." https://loom.ly/z-NBZhM
A new review shows insufficient or low-quality evidence to suggest cannabinoids are effective at treating most psychiatric conditions and substance use disorders.