A review found CBD has shown benefit for autism, anxiety, psychosis, neuropathic pain, epilepsy, and several neurodegenerative diseases, with common side effects limited to diarrhea and somnolence and low abuse potential.
Clinicians considering CBD for patients, researchers surveying the CBD therapeutic landscape, and patients exploring CBD options.
Low abuse potential
What the researchers found
CBD has demonstrated therapeutic benefit across multiple neuropsychiatric conditions including autism spectrum disorder, anxiety, psychosis, neuropathic pain, cancer pain, migraine, MS, Alzheimer disease, Parkinson disease, Huntington disease, hypoxic-ischemic injury, and epilepsy. CBD is generally well tolerated with low abuse potential. THC limitations may restrict some clinical applications.
Why it matters
The breadth of conditions where CBD shows promise, combined with its favorable safety profile, makes it one of the most versatile therapeutic candidates currently being investigated across neurology and psychiatry.
The numbers in context
CBD shows benefit across 12+ neuropsychiatric conditions listed. Most common adverse events: diarrhea and somnolence. Low abuse potential demonstrated. Over 100 naturally occurring cannabinoid chemicals in cannabis.
How the study worked
Updated narrative review of CBD and cannabinoid therapeutic potential, with emphasis on the distinction between psychotropic THC and non-psychotropic CBD effects across neuropsychiatric conditions.
What this study cannot tell us
Narrative review format without systematic methodology. Many of the cited benefits are based on preliminary evidence. The review covers conditions at very different evidence levels without always distinguishing them.
How to read the evidence
Rated moderate because the review covers a wide range of evidence, though the depth for individual conditions varies significantly.
When this study was published
Published in 2019.
The bigger picture
CBD sits at the intersection of neurology, psychiatry, and pain medicine. If even a fraction of its therapeutic potential is confirmed in rigorous trials, it could reshape treatment approaches across multiple medical specialties.
Questions still open
- Which of these many potential indications will hold up in rigorous RCTs? What is the optimal dose for each condition? Can CBD be standardized and dosed reliably enough for mainstream clinical use?
Common questions
What conditions might CBD help?
Is CBD safe?
Read the original research
Cannabis and Neuropsychiatric Disorders: An Updated Review.
Acta neurologica Taiwanica, 28(2), 27-39
Citation
Chayasirisobhon, Sirichai. (2019). Cannabis and Neuropsychiatric Disorders: An Updated Review.. Acta neurologica Taiwanica, 28(2), 27-39.
Explore the wider topic
- CBD Oil Quality Guide: How to Avoid Snake Oil
- Anxiety After Quitting Weed: When to Consider Medication
- Cannabis for Chemotherapy Nausea: What the Evidence Actually Shows
- Cannabis for Chronic Pain: What the Research Actually Supports
- Cannabis and Epilepsy: The Epidiolex Story and What It Means
- Does CBD Actually Work for Anxiety? What the Evidence Shows
- Does CBD Help with Weed Withdrawal? What Studies Show
- CBD vs THC: The Differences That Actually Matter
- The Proven Medical Benefits of Cannabis: What Research Supports
- Quitting Weed Before Surgery
- Weed and Medications: What Changes When You Quit
- Quitting Weed During Pregnancy: What You Need to Know
- Quitting Weed While Pregnant: What You Need to Know
- Cannabis and Older Adults: Risks Seniors Should Know
- Cannabis and Breastfeeding: THC in Breast Milk