Mental wellbeing

Cannabis for anxiety: what the research says

22 September 20265 min read

Anxiety disorders are the most common mental health condition in Australia, affecting around one in six adults at some point in their lives. Many people manage well with psychological therapy, lifestyle changes and conventional medicines, but some continue to struggle. That's led to growing interest in whether cannabinoids might have a role.

CBD and THC are different

The cannabis plant contains more than a hundred cannabinoids. The two most studied are:

  • CBD (cannabidiol): not intoxicating. Most research interest in anxiety has focused on CBD.
  • THC (tetrahydrocannabinol): the intoxicating component. At higher doses THC can actually increase anxiety and, in some people, trigger panic.

What does the evidence show?

Small, short-term studies have found that CBD may reduce anxiety in specific situations, such as public speaking tests. However, high-quality, long-term clinical trials in people with diagnosed anxiety disorders are still limited, and results have been mixed.

The honest answer is that the evidence is promising but not yet conclusive. That's why an individual assessment with a doctor matters.

Who might a doctor consider?

Doctors usually consider plant-based treatment only after established treatments have been tried. They'll also look at factors that may make it unsuitable, such as a personal or family history of psychosis, pregnancy, or interactions with your current medicines.

Where to get help now

If anxiety is affecting your daily life, talk to your GP. Evidence-based options like cognitive behavioural therapy (CBT) are very effective for many people. If you need to talk to someone right now, call Beyond Blue on 1300 22 4636 or Lifeline on 13 11 14.

This article is general information only and is not a substitute for advice from your doctor. Don't stop or change any current treatment without talking to your healthcare provider.