PTSD & trauma
Insufficient evidence. High-quality reviews found cannabis did not reduce PTSD symptoms; it should not displace trauma-focused therapy.
Last reviewed 15 June 2026 · Education, not medical advice
Not enough good evidence to draw conclusions. Should not replace proven treatments.
Can medicinal cannabis help with ptsd in NZ?
Insufficient evidence for ptsd. Insufficient evidence. High-quality reviews found cannabis did not reduce PTSD symptoms; it should not displace trauma-focused therapy.There is no fixed list of qualifying conditions in NZ — whether it's appropriate for you is a clinical judgement for a registered doctor. This is education, not a treatment recommendation.
What the evidence says
The evidence is mostly observational and high-risk-of-bias. The high-quality Annals of Internal Medicine review found insufficient evidence to draw conclusions, and observational data showed cannabis did not reduce PTSD symptoms versus non-use. A minority of patients experienced worsening. It should not displace trauma-focused psychotherapy or SSRIs/SNRIs, and is only ever one part of a wider, professionally supported treatment plan.
Cannabinoids studied
- Balanced THC:CBD
- CBD
Key cautions
- THC can worsen anxiety, paranoia and PTSD symptoms in some people.
- Elevated cannabis-use-disorder risk in PTSD populations.
- Should not replace first-line evidence-based treatment.
Sources
Peer-reviewed reviews, trial data and official guidance. We never fabricate figures.
What to do next
If you think medicinal cannabis might help with ptsd, the next step is a conversation with a registered New Zealand doctor, who can weigh your individual situation. Start with your own GP or a clinic that focuses on cannabis medicine. Our step-by-step pathway walks through the whole process, and our self-check can help you prepare.
This is general information, not medical advice. Only a registered New Zealand doctor can decide whether medicinal cannabis is right for you.
Reviewed for accuracy by the mc.nz editorial team against the cited sources. Last reviewed 15 June 2026.