Cannabinoid Hyperemesis Reported for the First Time in a Psychiatric Patient
A case report documented cannabinoid hyperemesis syndrome with compulsive bathing in a psychiatric patient, the first such report in this population, suggesting the condition may be underrecognized in mental health settings.
Quick Facts
What This Study Found
This case report described cannabinoid hyperemesis syndrome (CHS) in a psychiatric patient, noting that while the syndrome had been documented since 2004, it had never been reported in psychiatric settings.
The clinical presentation included cyclical vomiting associated with chronic cannabis use and compulsive bathing behavior, consistent with the CHS profile identified in earlier reports.
The authors noted that despite cannabis's established anti-emetic properties, chronic use can paradoxically cause cyclical vomiting, and this condition may be underrecognized, particularly in psychiatric populations where cannabis use is common.
Key Numbers
First reported case of CHS in a psychiatric patient. CHS was originally described by Allen et al. in 2004.
How They Did This
Single case report documenting clinical presentation of cannabinoid hyperemesis syndrome in a psychiatric patient.
Why This Research Matters
Cannabis use is highly prevalent among psychiatric patients. If CHS is underrecognized in this population, patients may undergo unnecessary investigations and treatments for their vomiting before the correct diagnosis is made.
The Bigger Picture
CHS may be particularly underdiagnosed in psychiatric populations because clinicians may attribute vomiting to medications, anxiety, or other causes rather than considering chronic cannabis use. Greater awareness in mental health settings is needed.
What This Study Doesn't Tell Us
Single case report. Cannot establish prevalence of CHS in psychiatric populations. Limited clinical details provided in the brief report.
Questions This Raises
- ?How common is CHS among psychiatric patients who use cannabis chronically?
- ?Could CHS be misdiagnosed as a side effect of psychiatric medications?
- ?Should psychiatric patients be routinely asked about cyclical vomiting and bathing behavior?
Trust & Context
- Key Stat:
- First documented CHS case in a psychiatric patient since the syndrome was identified in 2004
- Evidence Grade:
- Single case report providing a clinical observation. Raises awareness but cannot establish prevalence.
- Study Age:
- Published in 2010. CHS awareness has increased substantially since then, though it likely remains underdiagnosed in many clinical settings.
- Original Title:
- Cannabis and hyperemesis.
- Published In:
- Irish journal of psychological medicine, 27(1), 47-48 (2010)
- Authors:
- Harris, Ella, McDonagh, Michael, Kennedy, Noel
- Database ID:
- RTHC-00419
Evidence Hierarchy
Describes what happened to one person or a small group.
What do these levels mean? →Frequently Asked Questions
Why is CHS important in psychiatric settings?
Cannabis use is very common among psychiatric patients. If clinicians do not consider CHS, patients with cyclical vomiting may undergo expensive and unnecessary tests or have their symptoms attributed to psychiatric medications rather than cannabis use.
What is compulsive bathing?
Many CHS patients compulsively bathe in hot water because it temporarily relieves their nausea and vomiting. This distinctive behavior pattern, combined with chronic cannabis use and cyclical vomiting, is a hallmark of CHS.
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Cite This Study
https://rethinkthc.com/research/RTHC-00419APA
Harris, Ella; McDonagh, Michael; Kennedy, Noel. (2010). Cannabis and hyperemesis.. Irish journal of psychological medicine, 27(1), 47-48. https://doi.org/10.1017/S0790966700000938
MLA
Harris, Ella, et al. "Cannabis and hyperemesis.." Irish journal of psychological medicine, 2010. https://doi.org/10.1017/S0790966700000938
RethinkTHC
RethinkTHC Research Database. "Cannabis and hyperemesis." RTHC-00419. Retrieved from https://rethinkthc.com/research/harris-2010-cannabis-and-hyperemesis
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.