A clinical review outlines updated CHS treatment strategies including dopamine antagonists for acute episodes and addressing underlying mental health conditions for long-term management.
Emergency medicine providers, gastroenterologists, heavy cannabis users experiencing recurrent vomiting
Dopamine antagonists and treating co-occurring mental health conditions now part of CHS management
What the researchers found
Beyond the traditional advice of complete THC cessation, current evidence supports using dopamine antagonists in acute CHS episodes, along with IV fluids, capsaicin cream, and standard antiemetics. Treating co-occurring anxiety, depression, and substance use disorder is now seen as critical for sustained recovery.
Why it matters
CHS prevalence is rising with legalization, and many clinicians still struggle with diagnosis and management. Updated treatment recommendations that go beyond "just stop using" could improve patient outcomes.
The numbers in context
CHS first identified in 2004. Only known cure remains complete THC cessation. Dopamine antagonists identified as useful acute-phase treatment.
How the study worked
Clinical review synthesizing current evidence on CHS pathogenesis, diagnosis, and management in both acute and chronic phases.
What this study cannot tell us
Evidence base for CHS treatment remains limited. No large randomized trials guide management. Pathogenesis still poorly understood.
How to read the evidence
Expert clinical review synthesizing available evidence, but underlying studies are mostly case series and observational.
When this study was published
2025 review incorporating the most current CHS management evidence.
The bigger picture
CHS sits at the intersection of cannabis use, mental health, and emergency medicine. The shift toward treating underlying conditions rather than just symptoms represents a more holistic approach to a syndrome that frequently leads to repeated ER visits.
Questions still open
- Which dopamine antagonist is most effective for CHS? Can harm reduction approaches work, or is complete cessation truly the only cure? What role does cannabis potency play in CHS development?
Common questions
How is cannabinoid hyperemesis syndrome treated?
Is there a cure for CHS besides quitting cannabis?
Read the original research
Current recommendations in the diagnosis and management of cannabinoid hyperemesis syndrome.
Current opinion in pediatrics, 37(3), 240-243
Citation
Meyer, Joshua; Burns, Michele M. (2025). Current recommendations in the diagnosis and management of cannabinoid hyperemesis syndrome.. Current opinion in pediatrics, 37(3), 240-243. https://doi.org/10.1097/MOP.0000000000001464
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