The Rise of Synthetic Cannabinoids, Bath Salts, and Other "Legal Highs"

A clinical review documented the rapid growth of synthetic drugs including synthetic cannabinoids (K2/Spice), describing significant toxicities and psychosis risk that often go undetected by routine drug screens.

Albertson, Timothy E et al.·FP essentials·2016·Moderate EvidenceReview
RTHC-01088ReviewModerate Evidence2016RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Review
Evidence
Moderate Evidence
Sample
Not reported

What This Study Found

This review for family practitioners cataloged the expanding landscape of synthetic recreational drugs. Synthetic cannabinoids, sold as "K2" or "Spice," are sprayed onto herbal preparations and marketed as not for human consumption to avoid regulation.

Because the chemical compounds change frequently and are not included in routine drug screening, their use often goes undetected. The unpredictable concentrations of active ingredients make toxicity common. Adverse effects of synthetic cannabinoids include psychosis, among other serious reactions.

The review also covered synthetic cathinones ("bath salts"), MDMA variants, and new hallucinogens, noting that adolescents and young adults are the primary users of these substances.

Key Numbers

No specific prevalence data were presented. The review noted a "large increase" in synthetic drug use and identified adolescents and young adults as the primary user population.

How They Did This

This was a clinical review published in a family practice education journal, summarizing the pharmacology, toxicology, and clinical presentation of emerging synthetic drugs for practicing clinicians.

Why This Research Matters

Synthetic cannabinoids present unique clinical challenges because they are more potent and unpredictable than natural cannabis, they evade standard drug tests, and their chemical composition constantly shifts. Clinicians who are unaware of these substances may miss the diagnosis.

The Bigger Picture

The synthetic cannabinoid market has continued to evolve since this review, with new compounds regularly appearing. The pattern of creating legal ambiguity by constantly changing chemical structures while maintaining psychoactive effects remains an ongoing challenge for regulators and clinicians.

What This Study Doesn't Tell Us

This was a clinical overview rather than a systematic review. It did not provide detailed epidemiological data or head-to-head comparisons of harm profiles. The rapidly changing nature of synthetic drugs means specific compounds discussed may no longer be prevalent.

Questions This Raises

  • ?How can drug screening keep pace with constantly changing synthetic compounds?
  • ?What are the long-term health effects of synthetic cannabinoid use compared to natural cannabis?

Trust & Context

Key Stat:
Synthetic cannabinoids evade routine drug screening and have unpredictable potency
Evidence Grade:
This is a clinical review for family practitioners, summarizing known information about emerging drugs rather than presenting new research data.
Study Age:
Published in 2016. The synthetic drug market has continued to change rapidly, with new compounds emerging regularly.
Original Title:
The Changing Drug Culture: Emerging Drugs of Abuse and Legal Highs.
Published In:
FP essentials, 441, 18-24 (2016)
Database ID:
RTHC-01088

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / ObservationalSnapshot without intervening
This study
Case Report / Animal Study

Summarizes existing research on a topic.

What do these levels mean? →

Frequently Asked Questions

Are synthetic cannabinoids the same as marijuana?

No. Despite being marketed as cannabis alternatives, synthetic cannabinoids are chemically different, often much more potent, and carry greater risks of serious adverse effects including psychosis. They bind more strongly to cannabinoid receptors than THC does.

Why are these substances hard to detect?

Standard drug screening panels are designed to detect THC and other well-known substances. Synthetic cannabinoids have different chemical structures that change frequently, so they do not trigger positive results on routine tests.

Read More on RethinkTHC

Cite This Study

RTHC-01088·https://rethinkthc.com/research/RTHC-01088

APA

Albertson, Timothy E; Chenoweth, James A; Colby, Daniel K; Sutter, Mark E. (2016). The Changing Drug Culture: Emerging Drugs of Abuse and Legal Highs.. FP essentials, 441, 18-24.

MLA

Albertson, Timothy E, et al. "The Changing Drug Culture: Emerging Drugs of Abuse and Legal Highs.." FP essentials, 2016.

RethinkTHC

RethinkTHC Research Database. "The Changing Drug Culture: Emerging Drugs of Abuse and Legal..." RTHC-01088. Retrieved from https://rethinkthc.com/research/albertson-2016-the-changing-drug-culture

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.