If You Are in Crisis, Get Help First
If you are a veteran or anyone in crisis or having thoughts of suicide, contact the Veterans Crisis Line right away. Call 988 and press 1, text 838255, or chat online at VeteransCrisisLine.net. This help is available 24/7 and does not require you to be enrolled in VA care.
Does CBD Work for PTSD? Here Is What the Research Shows
Right now, there is not enough clinical trial evidence to say that CBD works for PTSD. The VA and the National Institutes of Health (NIH) have funded studies on CBD and cannabis for PTSD, but results so far are limited, mixed, or still pending. No CBD or cannabis product has been approved by the FDA to treat PTSD, and VA’s own clinical guidelines do not currently recommend cannabis-based products as a first-line PTSD treatment.
This article explains what research actually exists, how CBD differs from THC and other cannabinoids, and what questions to bring to a healthcare provider before making any decisions.
What CBD Research on PTSD Actually Exists
Research interest in cannabinoids for PTSD has grown, but the number of completed, well-designed clinical trials remains small. Here is what is publicly documented:
VA-Funded CBD Trial
In 2019, VA researchers launched a study to test whether CBD could help ease PTSD symptoms. The study was designed as a randomized, placebo-controlled trial testing CBD (600 mg daily) alongside Prolonged Exposure therapy in 136 military veterans over 16 weeks. This VA-funded project, registered on ClinicalTrials.gov as NCT03518801, represents one of the few controlled attempts to test CBD specifically, rather than whole-plant cannabis, in veterans with PTSD.
NIH Review of Cannabis and Cannabinoids for PTSD
The National Center for Complementary and Integrative Health (NCCIH), part of NIH, reviewed the cannabis and PTSD research and found the evidence thin. One very small study of 10 people found that nabilone, a synthetic cannabinoid, was more effective than a placebo at relieving PTSD-related nightmares. Beyond that, most available research consists of observational studies, meaning researchers watched what happened to people who chose on their own to use cannabis. These studies have not provided clear evidence on whether cannabis is helpful or harmful for PTSD symptoms.
VA’s Broader Marijuana and PTSD Review
A 2017 systematic review by researchers from VA Portland Health Care System and Oregon Health and Science University looked specifically at marijuana and PTSD. The review found limited evidence that marijuana might alleviate neuropathic pain in some patients and might reduce spasticity associated with multiple sclerosis, but researchers did not find sufficient evidence to assess the effects of marijuana on PTSD.
What VA’s Clinical Guidelines Say
The 2023 VA/DoD Clinical Practice Guideline for PTSD evaluates complementary and integrative health practices. Mindfulness-Based Stress Reduction received a “weak for” recommendation, and practices like acupuncture, yoga, and mantram repetition show emerging but limited evidence. Cannabis and CBD were not among the practices that met the evidence standard for a treatment recommendation. VA providers currently cannot prescribe medical marijuana, though they can discuss cannabis use with veterans as part of overall care planning.
CBD vs. THC vs. Other Cannabinoids: Know the Difference
Research findings for one cannabinoid do not automatically apply to another. Mixing these terms up is one of the most common sources of confusion in cannabis research reporting.
- CBD (cannabidiol): A non-intoxicating cannabinoid. It does not produce a “high.” Most PTSD research discussed above focused on CBD specifically.
- THC (delta-9 THC): The main psychoactive compound in cannabis, responsible for the “high” effect. Federal law defines cannabis plants containing more than 0.3% THC by dry weight as marijuana rather than hemp.
- Delta-8 THC: A cannabinoid with intoxicating effects, generally described as milder than delta-9 THC. It is chemically different from CBD, and safety research on it is limited.
- CBG (cannabigerol): A non-intoxicating cannabinoid sometimes called a “minor cannabinoid.” Clinical research on CBG for any condition, including PTSD, is very limited.
- Whole-plant cannabis / medical marijuana: Contains THC, CBD, and many other compounds together. Research on whole-plant cannabis for PTSD is separate from research on isolated CBD, and results should not be assumed to transfer between them.
- Full spectrum: Contains CBD plus other cannabinoids, and up to 0.3% THC in federally compliant hemp products.
- Broad spectrum: Contains CBD plus other cannabinoids, with THC removed or reduced to non-detectable levels.
- Isolate: Contains only CBD, with other cannabinoids and plant compounds removed.
Checklist: Questions to Ask Before Considering Any CBD Product
- Have I talked with my prescribing provider or mental health provider about this, especially if I take other medications?
- Am I clear on whether a product is CBD isolate, broad spectrum, or full spectrum, and how much THC, if any, it contains?
- Does the product come with a third-party Certificate of Analysis (COA) confirming what is actually in it?
- Is this product legal under my state’s current law, separate from federal hemp law?
- Am I using this to delay seeing a provider about PTSD symptoms that need evaluation?
- Do I understand that CBD research for PTSD is still early, and no product is FDA-approved for this use?
Where Current Evidence Falls Short
- Small sample sizes: Some of the only controlled studies on cannabinoids and PTSD nightmares involved as few as 10 participants.
- Observational, not controlled: Much of the human data on cannabis and PTSD comes from watching people who already chose to use cannabis, not from randomized trials that can rule out other explanations.
- CBD-specific data is limited: Most cannabis-and-PTSD research studied whole-plant marijuana or synthetic cannabinoids like nabilone, not consumer CBD products.
- No FDA-approved PTSD indication: The only FDA-approved CBD medication, Epidiolex, is approved for two rare seizure disorders, not PTSD.
- Product quality varies: NIH has noted that over-the-counter CBD products may contain more or less CBD than the label states, and may contain contaminants.
Extra Caution Groups
NIH research notes specific safety signals that matter for certain groups:
- People who are pregnant: cannabis use during pregnancy has been linked to lower birth weight.
- People taking other medications: CBD can interact with other drugs and has been associated with liver injury in some studies.
- People with a personal or family history of psychosis: frequent cannabis use has been linked to a higher risk of schizophrenia or other psychosis in people already predisposed to it.
- Older adults: cannabis use is associated with increased injury risk in this group.
- People also using THC regularly: CBD combined with regular THC use may increase risk of psychotic effects or cognitive impairment.
Where Ongoing Research Stands
VA and NIH continue to fund cannabinoid research broadly, including studies on pain, sleep, and other conditions that often co-occur with PTSD. VA’s National Center for PTSD and NCCIH both treat PTSD-related cannabinoid work as an area of ongoing scientific interest, but as of now, no cannabinoid product carries an FDA-approved indication for PTSD, and VA/DoD clinical guidelines do not recommend cannabis or CBD as a standard PTSD treatment. Readers who want to track new findings can check ClinicalTrials.gov directly or follow updates from VA’s National Center for PTSD.
FAQ
Does the VA prescribe CBD or medical marijuana for PTSD?
No. VA providers currently cannot prescribe medical marijuana or CBD products for PTSD. VA providers can discuss cannabis use with veterans as part of a broader care plan, but VA’s clinical guidelines do not list cannabis or CBD as a recommended PTSD treatment.
Is CBD the same as marijuana?
No. CBD is one of more than 100 cannabinoids found in the cannabis plant. Marijuana specifically refers to cannabis products containing substantial THC, the compound responsible for intoxicating effects. CBD itself is not intoxicating.
What PTSD treatments does VA research support instead?
VA research points to cognitive processing therapy, prolonged exposure therapy, and eye movement desensitization and reprocessing (EMDR) as the main evidence-based psychotherapies for PTSD. According to VA’s National Center for PTSD, roughly half of patients who complete one of these therapies no longer meet criteria for PTSD.
Can CBD interact with PTSD medications?
It may. NIH research notes CBD can interact with other drugs and has been linked to changes in liver function tests in some studies. Anyone taking prescription medication for PTSD or another condition should talk with their prescribing provider before adding CBD.
Educational Disclaimer
This article is for educational purposes only. It is not medical advice and does not diagnose, treat, or promise any outcome for PTSD or any other condition. Cannabinoid research, including CBD research, is still developing, and findings described here may change as new studies are published. Do not start, stop, or change any medication or treatment based on this article. Talk with a qualified healthcare provider about your specific situation, especially if you are considering CBD alongside other medications or mental health treatment. For more on how we verify sources and evaluate evidence, see our Editorial Policy and Medical Disclaimer. Learn more about our site and mission on our About page, or browse more coverage in Cannabis and Cannabinoid Science.