Traditional antiemetics often fail for cannabinoid hyperemesis syndrome, but haloperidol and topical capsaicin have shown promise, alongside the essential step of cannabis cessation.
emergency medicine clinicians, gastroenterologists, cannabis users experiencing cyclic vomiting
What the researchers found
Standard antiemetics like ondansetron often fail to alleviate CHS symptoms. Haloperidol and topical capsaicin have shown more promise in reducing symptoms. Cannabis cessation remains essential for resolution. The challenge of predicting who will develop CHS and reaching those resistant to stopping cannabis remains a pressing research need.
Why it matters
CHS is increasingly common as cannabis use rises, and its symptoms overlap with other GI disorders, leading to misdiagnosis and frequent ED visits. Knowing which treatments actually work can reduce unnecessary testing and improve patient outcomes.
The numbers in context
Standard antiemetics: often ineffective. Haloperidol: shows promise. Topical capsaicin: shows promise. Cannabis cessation: essential for resolution.
How the study worked
Narrative review exploring current and emerging treatments for CHS, including diagnosis challenges, treatment strategies, and research gaps.
What this study cannot tell us
Narrative review without systematic search methodology or quality assessment. Treatment evidence is based largely on case reports and small series. Cannot determine treatment effect sizes or compare treatments quantitatively.
How to read the evidence
Synthesizes current clinical knowledge from multiple sources, but narrative format without systematic methodology limits to moderate.
When this study was published
Contemporary review of CHS management literature.
The bigger picture
As cannabis use increases, CHS recognition and management become more important for emergency medicine. The inability to predict who will develop CHS means clinicians must be prepared to diagnose and manage it in any heavy cannabis user.
Questions still open
- Can biomarkers predict who will develop CHS?
- How can interventions reach CHS patients who are resistant to cannabis cessation?
Common questions
What is cannabinoid hyperemesis syndrome?
Why don't regular anti-nausea drugs work for CHS?
Read the original research
Unraveling the Enigma of Cannabinoid Hyperemesis Syndrome: A Narrative Review of Diagnosis and Management.
Cureus, 17(8), e90961
Citation
Smith, Shemyia A; Safwat, Mayar A; Piper, Brian J; Addison, Maame A. (2025). Unraveling the Enigma of Cannabinoid Hyperemesis Syndrome: A Narrative Review of Diagnosis and Management.. Cureus, 17(8), e90961. https://doi.org/10.7759/cureus.90961
Explore the wider topic
- Cannabis and Your Cardiovascular System: Heart Risk, Stroke, and What the Research Shows
- Cannabis and Your Heart: What the Cardiovascular Research Shows
- Coughing Up Black Stuff After Quitting Weed: What It Means
- Lung Recovery After Quitting Weed: The Complete Timeline
- Weed and Your Lungs: Recovery Timeline After Quitting
- Quitting Weed as a Woman: Hormones, Cycles, and Recovery
- Cannabis, Weight, and Diet: What Quitting Does to Your Appetite
- Sex After Quitting Weed: What Changes and What Doesn't
- Cannabis and Driving: DUI Laws, Impairment Science, and What You Need to Know
- Weed and Acne: Can Quitting Cannabis Clear Your Skin?
- Weed and Fertility: What Couples Should Know
- Weed and Your Gut: How Cannabis Affects Digestion
- Weed and Your Heart: Cardiovascular Effects and Recovery
- Weed, Testosterone, and Male Health: What the Research Actually Shows
- Cannabis and IBS: Gut Health, Inflammation, and Symptom Relief
- Cannabis and Crohn's Disease: What Gastroenterology Research Shows
- Greening Out Explained: What Happens When You Take Too Much THC
- How to Help Someone Who Is Greening Out
- How to Avoid Greening Out: Dosing, Tolerance, and Prevention