Potent Synthetic Cannabinoid 5F-AKB48 Emerged as an Adolescent Drug in France

Between 2017 and 2024, French poison centers recorded 304 cases of 5F-AKB48 exposure, predominantly in adolescent males (median age 16.5), with 4% experiencing severe symptoms including seizures and coma.

Harmel, Clément et al.·The International journal on drug policy·2025·Moderate EvidenceRetrospective Cohort
RTHC-06638Retrospective CohortModerate Evidence2025RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Retrospective Cohort
Evidence
Moderate Evidence
Sample
N=304

What This Study Found

Among 304 cases reported to French Poison Control Centers, the median age was 16.5 years with a male-to-female ratio of 4.4:1. The drug was used alone in 91% of cases. Most (59%) had mild symptoms, 35% moderate, and 4% severe (seizures, coma, agitation). Multiple substance use was associated with more severe outcomes. Most exposures occurred in northern France, and the drug is likely popular due to its compatibility with e-cigarette devices for discreet use.

Key Numbers

304 cases; median age 16.5; sex ratio 4.4 M:F; 91% used alone; 59% mild, 35% moderate, 4% severe; severe symptoms: seizures, coma, agitation; no fatalities; predominantly northern France

How They Did This

Retrospective analysis of all acute 5F-AKB48 exposure cases reported to French Poison Control Centers from 2017 to 2024. Assessed demographics, symptoms, and outcomes using the Poison Severity Score.

Why This Research Matters

Synthetic cannabinoids are far more potent and dangerous than plant cannabis, yet they can be consumed discreetly through e-cigarettes, making detection difficult for parents and schools. Their emergence among adolescents represents a distinct public health challenge.

The Bigger Picture

Synthetic cannabinoids often surge in use when they are novel and unregulated, then decline as awareness of dangers grows and regulations catch up. The compatibility with e-cigarette devices is a new delivery vector that complicates traditional drug detection.

What This Study Doesn't Tell Us

Poison control data captures only cases severe enough to prompt a call; actual use likely much higher. Outcome unknown in 36% of cases. Cannot assess chronic health effects. French-specific regulatory and cultural context.

Questions This Raises

  • ?How common is undetected synthetic cannabinoid use in e-cigarettes among adolescents?
  • ?Would e-cigarette regulation targeting liquid additives reduce synthetic cannabinoid vaping?

Trust & Context

Key Stat:
Evidence Grade:
Moderate: comprehensive national poison center data over 7 years, but likely underestimates true prevalence.
Study Age:
2025 publication covering 2017-2024 data
Original Title:
5F-AKB48: A synthetic cannabinoid presenting an emerging public health concern in France.
Published In:
The International journal on drug policy, 145, 104972 (2025)
Database ID:
RTHC-06638

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-ControlFollows or compares groups over time
This study
Cross-Sectional / Observational
Case Report / Animal Study

Looks back at existing records to find patterns.

What do these levels mean? →

Read More on RethinkTHC

Cite This Study

RTHC-06638·https://rethinkthc.com/research/RTHC-06638

APA

Harmel, Clément; Caré, Weniko; Laborde-Casterot, Hervé; Liautard, Marc; Langrand, Jérôme; Dufayet, Laurène. (2025). 5F-AKB48: A synthetic cannabinoid presenting an emerging public health concern in France.. The International journal on drug policy, 145, 104972. https://doi.org/10.1016/j.drugpo.2025.104972

MLA

Harmel, Clément, et al. "5F-AKB48: A synthetic cannabinoid presenting an emerging public health concern in France.." The International journal on drug policy, 2025. https://doi.org/10.1016/j.drugpo.2025.104972

RethinkTHC

RethinkTHC Research Database. "5F-AKB48: A synthetic cannabinoid presenting an emerging pub..." RTHC-06638. Retrieved from https://rethinkthc.com/research/harmel-2025-5fakb48-a-synthetic-cannabinoid

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.