15% of Florida Medical Cannabis Patients Reported Buying Products They Believed Were Contaminated

A survey of Florida medical cannabis patients found low contamination knowledge, 15% reported purchasing suspected contaminated products, and 25% bought products they were uncomfortable consuming.

Spandau, Gabriel et al.·Medical cannabis and cannabinoids·2025·Preliminary EvidenceObservational
RTHC-07701ObservationalPreliminary Evidence2025RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Observational
Evidence
Preliminary Evidence
Sample
N=21

What This Study Found

Respondents reported low knowledge of potential contaminants and lacked educational resources. 15% reported purchasing products they believed to be contaminated. 25% purchased products they were uncomfortable consuming due to quality issues. Trust was moderately higher for information from medical cannabis doctors and university researchers than state sources. Patients desired policy changes including home grow, increased testing, and pre-purchase product inspection.

Key Numbers

Recruited from 2,000-patient registry. 15% purchased suspected contaminated products. 25% purchased products they were uncomfortable consuming. Low contamination knowledge reported. Higher trust in doctors/researchers than state information. Policy desires: home grow, more testing, pre-purchase inspection.

How They Did This

Cross-sectional survey of Florida medical cannabis patients over 21, recruited from a 2,000-patient contact registry. 24-item survey assessed experiences and perspectives on contamination, guided by the Health Belief Model framework. Hosted via Qualtrics.

Why This Research Matters

Medical cannabis is intended for vulnerable patients who may have compromised immune systems or other health conditions. Contamination in these products poses direct health risks, and patients' low knowledge about contamination makes them especially vulnerable.

The Bigger Picture

Product quality and safety in medical cannabis programs is an underexamined issue. When patients cannot identify contaminants and programs do not adequately educate them, the therapeutic intent of medical cannabis may be undermined by safety risks.

What This Study Doesn't Tell Us

Survey sample from a single state (Florida). Self-reported experiences and beliefs. Response rate and representativeness not fully described. Contamination was not laboratory-verified. Patient beliefs about contamination may not reflect actual contamination rates.

Questions This Raises

  • ?What types of contaminants are most common in Florida medical cannabis products?
  • ?Would mandatory contamination education reduce patient exposure?

Trust & Context

Key Stat:
Evidence Grade:
Single-state survey with self-reported contamination beliefs rather than laboratory verification places this at preliminary evidence.
Study Age:
Recent survey of Florida medical cannabis patients.
Original Title:
Medical Patients' Awareness, Perspectives, and Experiences with Contaminated Cannabis.
Published In:
Medical cannabis and cannabinoids, 8(1), 166-180 (2025)
Database ID:
RTHC-07701

Evidence Hierarchy

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

Watches what happens naturally without intervening.

What do these levels mean? →

Frequently Asked Questions

Are medical cannabis products contaminated?

This study found 15% of patients believed they had purchased contaminated products, but actual contamination rates were not tested. The study highlights a gap in patient education about contamination risks.

Who do patients trust for cannabis safety information?

Patients reported moderately higher trust in medical cannabis doctors and university researchers compared to state-produced information.

Read More on RethinkTHC

Cite This Study

RTHC-07701·https://rethinkthc.com/research/RTHC-07701

APA

Spandau, Gabriel; Loizzo, Jamie; Goodin, Amie; Bunch, James C; Stedman, Nicole; Pearson, Brian. (2025). Medical Patients' Awareness, Perspectives, and Experiences with Contaminated Cannabis.. Medical cannabis and cannabinoids, 8(1), 166-180. https://doi.org/10.1159/000546398

MLA

Spandau, Gabriel, et al. "Medical Patients' Awareness, Perspectives, and Experiences with Contaminated Cannabis.." Medical cannabis and cannabinoids, 2025. https://doi.org/10.1159/000546398

RethinkTHC

RethinkTHC Research Database. "Medical Patients' Awareness, Perspectives, and Experiences w..." RTHC-07701. Retrieved from https://rethinkthc.com/research/spandau-2025-medical-patients-awareness-perspectives

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.