Young Adults Using Both Cannabis and Derived Products Reported More Negative Consequences

Among nearly 2,000 young adult cannabis users, those who also used derived products like Delta-8 reported more psychophysiological and sociobehavioral consequences than cannabis-only users.

LoParco, Cassidy R et al.·Substance use & misuse·2025·Moderate EvidenceCross-Sectional
RTHC-06978Cross SectionalModerate Evidence2025RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Cross-Sectional
Evidence
Moderate Evidence
Sample
N=4,031

What This Study Found

About 45.6% of cannabis users also used derived intoxicating cannabis products (DICPs). Cannabis-DICP co-use (vs cannabis-only) was associated with greater psychophysiological and sociobehavioral consequences. Higher enhancement and coping motives predicted co-use. The associations between motives and consequences were partially mediated through co-use of DICPs.

Key Numbers

1,968 past-month cannabis users from 4,031 surveyed. 54.4% cannabis-only, 45.6% cannabis-DICP co-use. Greater coping and enhancement motives predicted co-use. Co-use associated with greater psychophysiological and sociobehavioral consequences.

How They Did This

Cross-sectional survey analysis of 1,968 past-month cannabis users from a sample of 4,031 US young adults aged 18-34 (June-November 2023). Mediation models examined motives, use category, and consequences.

Why This Research Matters

Derived cannabis products represent a growing and largely unregulated market. This study provides early evidence that combining traditional cannabis with these products may carry additional risks compared to using cannabis alone.

The Bigger Picture

As the cannabis product landscape diversifies, understanding the risks of combining different product types is increasingly important. This study suggests the emerging DICP market may be introducing additional harm beyond traditional cannabis.

What This Study Doesn't Tell Us

Cross-sectional design cannot determine causation. Self-reported consequences. Cannabis and DICP categories overlap in complex ways. Convenience sample may not be representative of all young adult cannabis users.

Questions This Raises

  • ?Are the additional consequences driven by higher total cannabinoid consumption, novel compounds in DICPs, or both?
  • ?Would DICP regulation reduce harms?
  • ?Do people start with DICPs and move to cannabis or vice versa?

Trust & Context

Key Stat:
45.6% of cannabis users also used derived products, and co-use was linked to more negative consequences
Evidence Grade:
Moderate: large sample with validated measures and mediation analysis, though cross-sectional design limits causal inference.
Study Age:
2025 study using 2023 survey data.
Original Title:
Associations Between Cannabis Messaging and Derived Psychoactive Cannabis Product Perceptions, Use, and Use Intentions Among a Sample of US Young Adults.
Published In:
Substance use & misuse, 60(13), 2025-2033 (2025)
Database ID:
RTHC-06978

Evidence Hierarchy

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

A snapshot of a population at one point in time.

What do these levels mean? →

Frequently Asked Questions

What are derived cannabis products?

Products like Delta-8 THC, Delta-10 THC, and other cannabinoids derived from hemp that emerged largely unregulated after the 2018 Farm Bill. They produce psychoactive effects but with less regulatory oversight.

Why did co-users have worse outcomes?

Higher total cannabinoid consumption and coping motives (using substances to deal with problems) both contributed. People using multiple product types may be consuming more overall and using for higher-risk reasons.

Read More on RethinkTHC

Cite This Study

RTHC-06978·https://rethinkthc.com/research/RTHC-06978

APA

LoParco, Cassidy R; Rossheim, Matthew E; Cui, Yuxian; McCready, Darcey M; Romm, Katelyn F; Wang, Yan; Yang, Y Tony; Cavazos-Rehg, Patricia A; Szlyk, Hannah; Kasson, Erin; Berg, Carla J. (2025). Associations Between Cannabis Messaging and Derived Psychoactive Cannabis Product Perceptions, Use, and Use Intentions Among a Sample of US Young Adults.. Substance use & misuse, 60(13), 2025-2033. https://doi.org/10.1080/10826084.2025.2530786

MLA

LoParco, Cassidy R, et al. "Associations Between Cannabis Messaging and Derived Psychoactive Cannabis Product Perceptions, Use, and Use Intentions Among a Sample of US Young Adults.." Substance use & misuse, 2025. https://doi.org/10.1080/10826084.2025.2530786

RethinkTHC

RethinkTHC Research Database. "Associations Between Cannabis Messaging and Derived Psychoac..." RTHC-06978. Retrieved from https://rethinkthc.com/research/loparco-2025-associations-between-cannabis-messaging

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.