Big Review Finds No Benefit of Medicinal Cannabis for Depression or Anxiety
A Lancet meta-analysis of 54 randomized trials over 45 years found no solid evidence that medicinal cannabis improves anxiety, depression, or PTSD. While there are weak signals for some other conditions (epilepsy in certain forms, MS symptoms, and pain), the overall evidence quality is low. Potential harms include psychotic symptoms and increased risk of cannabis use disorder, and using cannabis could delay more effective treatments. The study also highlights regulatory concerns amid widespread medical cannabis use for mental-health symptoms.








