Cannabis is not an effective treatment for common mental health conditions despite the global surge in patients using it for that purpose,
a review has found. Researchers concluded there was
“very little evidence for its efficacy” in treating anxiety, anorexia nervosa, psychotic disorders, post-traumatic stress disorder or opioid use disorder. Their review was prompted by the legalisation of cannabis as a treatment for both types of condition by countries including the US, the UK, Australia and Canada.
the Guardian
There was some evidence that cannabinoids can reduce symptoms of cannabis use disorder, insomnia, tic or Tourette's syndrome, and autism spectrum disorder, but the quality of this evidence was generally low. Cannabinoids were associated with a greater risk of any adverse events but not of serious adverse events.
Overall, there is a crucial need for more high-quality research. Given the scarcity of evidence, the routine use of cannabinoids for the treatment of mental disorders and SUDs is currently rarely justified.
the Lancet
Prof Owen Bowden-Jones, registrar of the Royal College of Psychiatrists, said of the Lancet research:
“It is vital that patients are provided with accurate and transparent information about these products so that they can make informed decisions about their care and treatment.”