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Dr. Cannabis

PTSD

Post-traumatic stress disorder. Limited evidence resting on a single small trial — and a qualifying condition in many state medical programs regardless.

Limited evidenceWeak evidence from fair-quality studies, or mixed findings.

What the evidence says

NASEM 2017: limited evidence for improving PTSD symptoms, based on one single, small, fair-quality trial of nabilone.

NASEM found limited evidence for improving PTSD symptoms, and was specific about why the tier is low: the finding rests on one single, small, fair-quality trial of nabilone.

PTSD is nonetheless a qualifying condition in a large number of state medical cannabis programs. That reflects policy and patient demand more than it reflects trial evidence, and it is worth knowing the difference.

Cannabis is not a substitute for trauma-focused therapy, which has a substantially stronger evidence base.

What to ask for

This is a starting point, not a prescription. Take it to a licensed dispensary and ask to see the batch certificate of analysis.

Suggested ratio
CBD-forward with low THC
Starting THC dose
1 mg
Commonly chosen profile
CBD-dominant
Time of day
either

Cannabinoids

  • CBD

    Non-intoxicating. The only cannabis-derived compound with an FDA-approved medicine behind it, and the cannabinoid most often used to soften THC.

  • THC

    The main intoxicating compound in cannabis. It drives most of what people mean by "high," and it is also the cannabinoid behind most documented therapeutic effects.

Terpenes to look for

Commonly present in products people choose for this. Terpene effect claims are preclinical — this is a way to find a product again, not a promise about how it will feel.

Formats

  • TinctureOnset 15–90 min · lasts 4–8 h

    Liquid extract dosed by dropper. The most precise way to titrate an oral dose in small increments.

  • CapsuleOnset 30–120 min · lasts 6–8 h

    Swallowed softgel or capsule. Behaves like an edible with pharmacy-style consistency.

Get a personalised starting point

Answer four questions and we will adjust the dose for your experience level and find licensed dispensaries near you.

Get guidance

Talk to a doctor if

  • • You are having thoughts of harming yourself
  • • You are not currently in trauma-focused therapy
  • • Cannabis is becoming your main coping strategy

Related conditions

Sources

  1. NASEM 2017, Committee Conclusions (summary PDF of all evidence-tier conclusions).Accessed 2026-08-15.