Cannabis Was the Most Common Psychedelic to Cause Skin Reactions
In a review of skin reactions to psychedelics and hallucinogens, cannabis accounted for nearly half of all reported cases, most commonly causing allergic reactions from topical exposure, while MDMA, ketamine, and psilocybin also caused various skin problems.
Quick Facts
What This Study Found
Of 22 studies meeting inclusion criteria (40 total patients), cannabis accounted for 10 studies. The most common cannabis skin reaction was type I hypersensitivity from topical exposure (n=21). Three patients had type IV reactions (vesicular contact dermatitis) from cannabis-derived oils. MDMA caused acneiform eruptions and Stevens-Johnson syndrome. Ketamine caused type I hypersensitivity. Psilocybin caused vesicular eruptions.
Key Numbers
22 studies, 40 patients total; cannabis: 10 studies, 21 cases of type I hypersensitivity, 3 cases type IV; MDMA: 5 studies; ketamine: 4 studies; psilocybin: 3 studies; 8 resolved with cessation alone
How They Did This
Systematic review of PubMed and Scopus from database inception to August 2023 for cutaneous reactions to psychedelics and hallucinogens (cannabis, MDMA, LSD, ketamine, psilocybin, and others).
Why This Research Matters
As cannabis and psychedelic use increases, clinicians need to recognize associated skin reactions. Cannabis allergy is increasingly documented and can range from mild contact reactions to potentially serious systemic allergic responses.
The Bigger Picture
Cannabis allergy is an emerging clinical concern that may be underrecognized. As cannabis becomes legal and more people handle cannabis products (especially in agricultural and dispensary settings), occupational skin reactions may increase.
What This Study Doesn't Tell Us
Limited to published case reports and small studies. Likely underrepresents true incidence. No standardized diagnostic criteria across studies. Many cases had incomplete follow-up.
Questions This Raises
- ?Is cannabis allergy becoming more common with increased exposure?
- ?Should cannabis dispensary and agricultural workers be screened for cannabis skin sensitivity?
Trust & Context
- Key Stat:
- Cannabis accounted for nearly half of all documented skin reactions to psychedelics
- Evidence Grade:
- Systematic review but of mostly case reports with small patient numbers and inconsistent follow-up.
- Study Age:
- Published in 2024.
- Original Title:
- Trips Through the Skin: Reviewing Cutaneous Drug Reactions to Psychedelics and Hallucinogens.
- Published In:
- Dermatitis : contact, atopic, occupational, drug, 35(6), 605-613 (2024)
- Authors:
- Rahman, Syed Minhaj, Salem, Yousef, Hussain, Aamir
- Database ID:
- RTHC-05638
Evidence Hierarchy
Analyzes all available research on a topic using a structured method.
What do these levels mean? →Frequently Asked Questions
Can cannabis cause skin reactions?
Yes. The most common was allergic reactions from topical exposure (touching cannabis plants or products). Some people developed contact dermatitis from cannabis-derived oils.
Are cannabis allergies common?
They appear to be increasingly recognized, particularly among people who handle cannabis occupationally. But the true prevalence is unknown.
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Cite This Study
https://rethinkthc.com/research/RTHC-05638APA
Rahman, Syed Minhaj; Salem, Yousef; Hussain, Aamir. (2024). Trips Through the Skin: Reviewing Cutaneous Drug Reactions to Psychedelics and Hallucinogens.. Dermatitis : contact, atopic, occupational, drug, 35(6), 605-613. https://doi.org/10.1089/derm.2023.0292
MLA
Rahman, Syed Minhaj, et al. "Trips Through the Skin: Reviewing Cutaneous Drug Reactions to Psychedelics and Hallucinogens.." Dermatitis : contact, 2024. https://doi.org/10.1089/derm.2023.0292
RethinkTHC
RethinkTHC Research Database. "Trips Through the Skin: Reviewing Cutaneous Drug Reactions t..." RTHC-05638. Retrieved from https://rethinkthc.com/research/rahman-2024-trips-through-the-skin
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.