Nearly Half of Australian Epilepsy Patients Using Cannabis Access It Illegally Despite Legal Options

Despite 8 years of legal medicinal cannabis in Australia, 28% of epilepsy patients used only illicit products and 17% used both, with cost and THC driving restrictions as major barriers.

Skene, Douglas A D et al.·Journal of epilepsy research·2025·Moderate EvidenceObservational
RTHC-07675ObservationalModerate Evidence2025RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Observational
Evidence
Moderate Evidence
Sample
N=102

What This Study Found

Among 102 people with epilepsy, 27.5% used only illicit cannabis, 27.5% had transitioned to prescribed products, and 16.7% used both. Most caregivers (70.8%) used prescribed products only. 67% reported cannabis improved or greatly improved their epilepsy. Cost (69%) was the primary barrier. Most used cannabis as an adjunct to conventional anti-seizure medications (77%).

Key Numbers

126 respondents (102 PWE, 24 caregivers). 27.5% illicit only. 27.5% transitioned to prescribed. 16.7% both. 70.8% of caregivers used prescribed only. 67% reported improvement. 77% used as adjunct. 69% cited cost as barrier. THC driving restrictions a major concern.

How They Did This

Cross-sectional survey of 126 Australian respondents (102 people with epilepsy, 24 caregivers) examining medicinal cannabis use patterns, attitudes, access barriers, and routes of administration.

Why This Research Matters

Eight years after legalizing medicinal cannabis, many Australian epilepsy patients still rely on illicit sources. Cost and THC-related driving laws appear to be significant barriers to legal access, creating a dual system with safety implications.

The Bigger Picture

Australia's experience highlights that legalizing medicinal cannabis does not automatically solve access problems. The prevalence of illicit use alongside legal options suggests regulatory and financial barriers can undermine the intended benefits of legalization.

What This Study Doesn't Tell Us

Small, self-selected sample. No clinical verification of epilepsy type or seizure outcomes. Survey distributed through epilepsy and cannabis organizations, likely overrepresenting engaged users. Cross-sectional design.

Questions This Raises

  • ?Would subsidizing medicinal cannabis reduce illicit use among epilepsy patients?
  • ?Do THC-containing products provide different seizure control than CBD-only products?

Trust & Context

Key Stat:
Evidence Grade:
Survey provides meaningful data on access barriers but small, self-selected sample limits generalizability. Evidence is moderate.
Study Age:
Survey conducted 2023-2024 in Australia.
Original Title:
Use of Medicinal Cannabis for Epilepsy in the Australian Community 2023-2024: A Cross-Sectional Survey.
Published In:
Journal of epilepsy research, 15(1), 56-69 (2025)
Database ID:
RTHC-07675

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

Why do epilepsy patients use illegal cannabis when legal options exist?

Cost was cited by 69% as the main barrier. THC-related driving restrictions also deterred legal access, since some patients use THC-containing products and face legal consequences for driving.

Does cannabis actually help with epilepsy?

67% of respondents reported that cannabis improved or greatly improved their epilepsy, regardless of whether they used legal or illicit products. Most used it alongside conventional medications.

Read More on RethinkTHC

Cite This Study

RTHC-07675·https://rethinkthc.com/research/RTHC-07675

APA

Skene, Douglas A D; McGregor, Iain S; Todd, Lisa; Suraev, Anastasia. (2025). Use of Medicinal Cannabis for Epilepsy in the Australian Community 2023-2024: A Cross-Sectional Survey.. Journal of epilepsy research, 15(1), 56-69. https://doi.org/10.14581/jer.25006

MLA

Skene, Douglas A D, et al. "Use of Medicinal Cannabis for Epilepsy in the Australian Community 2023-2024: A Cross-Sectional Survey.." Journal of epilepsy research, 2025. https://doi.org/10.14581/jer.25006

RethinkTHC

RethinkTHC Research Database. "Use of Medicinal Cannabis for Epilepsy in the Australian Com..." RTHC-07675. Retrieved from https://rethinkthc.com/research/skene-2025-use-of-medicinal-cannabis

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.