Online Forums Overwhelmingly Portray Cannabis as Therapeutic for ADHD Despite No Clinical Evidence

Analysis of 268 online forum threads found that 25% of individual posts claimed cannabis helps ADHD while only 8% said it was harmful, despite zero clinical evidence supporting cannabis for ADHD treatment.

Mitchell, John T et al.·PloS one·2016·Preliminary EvidenceQualitative Study
RTHC-01226QualitativePreliminary Evidence2016RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Qualitative Study
Evidence
Preliminary Evidence
Sample
N=55

What This Study Found

Despite ADHD being a risk factor for problematic cannabis use, there is growing online discourse portraying cannabis as a treatment for ADHD. This study is the first to systematically analyze these discussions.

Researchers identified 268 online forum threads about cannabis and ADHD. A random 20% sample (55 threads, averaging 17.5 posts each) was coded by three raters. Among 401 coded posts:

25% endorsed cannabis as therapeutic for ADHD, while only 8% described it as harmful. 5% said it was both therapeutic and harmful, and 2% said it had no effect. This pro-therapeutic pattern was consistent across years.

Importantly, this positive framing of cannabis for ADHD did not extend to other conditions. Posts about mood disorders, other psychiatric conditions, and general daily life functioning did not show the same therapeutic bias, suggesting the ADHD-specific narrative is distinctive.

Some posts claimed healthcare providers had sanctioned their cannabis use for ADHD, adding perceived legitimacy to the practice.

Key Numbers

268 forum threads identified. 55 analyzed (mean 17.5 posts each). 401 posts coded. 25% said cannabis is therapeutic for ADHD. 8% said harmful. 5% said both. 2% said no effect. Cohen's kappa = 0.74 (good inter-rater reliability).

How They Did This

Qualitative analysis of online forum discussions. 268 threads identified. 20% randomly selected (55 threads, 401 qualifying posts). Three raters coded content (Cohen's kappa = 0.74). Posts coded for therapeutic, harmful, both, or no effect endorsements.

Why This Research Matters

The internet increasingly shapes healthcare decisions. When patients or parents searching for ADHD information encounter overwhelmingly positive cannabis narratives online, this could influence self-medication decisions. Currently, there are no clinical recommendations or systematic research supporting cannabis for ADHD.

The Bigger Picture

This study reveals a disconnect between online discourse and clinical evidence. While people with ADHD report subjective benefits from cannabis, the objective evidence shows ADHD is a risk factor for cannabis use disorders. Online narratives may normalize self-medication and delay evidence-based treatment.

What This Study Doesn't Tell Us

Online forum users are not representative of all people with ADHD. Posts may be influenced by cannabis-positive communities. Cannot verify ADHD diagnosis or actual cannabis effects. Coding captures stated opinions, not outcomes.

Questions This Raises

  • ?Does cannabis actually help ADHD symptoms, or are users misattributing other effects?
  • ?Could online cannabis-for-ADHD narratives delay people from seeking evidence-based treatment?
  • ?Would rigorous clinical trials settle this question?

Trust & Context

Key Stat:
25% of posts said cannabis helps ADHD vs. 8% harmful, with no clinical evidence behind it
Evidence Grade:
Systematic qualitative analysis with good inter-rater reliability, but analyzes online discourse rather than clinical outcomes.
Study Age:
Published in 2016. Online discourse about cannabis and ADHD has likely expanded with legalization and social media growth.
Original Title:
"I Use Weed for My ADHD": A Qualitative Analysis of Online Forum Discussions on Cannabis Use and ADHD.
Published In:
PloS one, 11(5), e0156614 (2016)
Database ID:
RTHC-01226

Evidence Hierarchy

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

Uses interviews or focus groups to understand experiences in depth.

What do these levels mean? →

Frequently Asked Questions

Does cannabis help with ADHD?

There is currently no clinical evidence that cannabis treats ADHD. However, this study found that 25% of online forum posts claim it is therapeutic, creating a misleading perception for patients and caregivers searching for information.

Why do people with ADHD use cannabis?

Some report subjective symptom relief, but ADHD is actually a risk factor for developing problematic cannabis use. The gap between online perception and clinical evidence highlights the need for rigorous research.

Read More on RethinkTHC

Cite This Study

RTHC-01226·https://rethinkthc.com/research/RTHC-01226

APA

Mitchell, John T; Sweitzer, Maggie M; Tunno, Angela M; Kollins, Scott H; McClernon, F Joseph. (2016). "I Use Weed for My ADHD": A Qualitative Analysis of Online Forum Discussions on Cannabis Use and ADHD.. PloS one, 11(5), e0156614. https://doi.org/10.1371/journal.pone.0156614

MLA

Mitchell, John T, et al. ""I Use Weed for My ADHD": A Qualitative Analysis of Online Forum Discussions on Cannabis Use and ADHD.." PloS one, 2016. https://doi.org/10.1371/journal.pone.0156614

RethinkTHC

RethinkTHC Research Database. ""I Use Weed for My ADHD": A Qualitative Analysis of Online F..." RTHC-01226. Retrieved from https://rethinkthc.com/research/mitchell-2016-i-use-weed-for

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.