ADHD prevalence reaches 23% among substance use disorder populations, with cannabis being the most commonly used illicit drug, yet evidence for medical marijuana as ADHD treatment remains weak.
Psychiatrists, ADHD clinicians, addiction medicine specialists, and patients or families navigating ADHD and cannabis use.
23.1% ADHD prevalenceamong substance use disorder populations, with cannabis being the most commonly used illicit drug
What the researchers found
The review highlights that ADHD is highly prevalent (23.1%) in substance use disorder populations, leading to earlier onset, self-medication behaviors, and reduced treatment effectiveness, with shared reward circuitry and endocannabinoid system involvement.
Why it matters
As cannabis becomes more accessible, understanding its particular risks for the ADHD population is critical given their vulnerability to substance use disorders and the growing self-medication trend.
The numbers in context
ADHD prevalence in SUD population: 23.1%. Cannabis is the most common illicit drug among the ADHD population. Key brain systems involved: default-mode network and endocannabinoid system.
How the study worked
Narrative review examining theoretical models of ADHD-SUD comorbidity, focusing on neurocognitive mechanisms, reward/motivational circuitry, and cannabis use disorders.
Who was studied
Not applicable (review article covering ADHD and SUD populations broadly).
What this study cannot tell us
Narrative review rather than systematic review or meta-analysis. May not capture all relevant literature. Does not generate new data.
How to read the evidence
Narrative review synthesizing existing literature; provides framework for understanding but not definitive clinical evidence.
When this study was published
Review article integrating research up to its publication date.
The bigger picture
This review connects ADHD neurobiology to cannabis vulnerability through shared reward pathways and the endocannabinoid system, cautioning against uncritical acceptance of medical cannabis for ADHD symptoms.
Replication
Review article; referenced primary studies should be evaluated independently.
Funding
Not specified in abstract
Conflicts of interest
Not specified in abstract
Questions still open
- Could targeted interventions addressing the reward circuitry reduce cannabis use in ADHD patients?
- What evidence exists for or against medical cannabis as an ADHD treatment?
Read the original research
Exploring the Link Between Attention-Deficit Hyperactivity Disorder and Cannabis Use Disorders: A Review.
Medical science monitor : international medical journal of experimental and clinical research, 29, e939749
Citation
Gujska, Julia Helena; Silczuk, Andrzej; Madejek, Robert; Szulc, Agata. (2023). Exploring the Link Between Attention-Deficit Hyperactivity Disorder and Cannabis Use Disorders: A Review.. Medical science monitor : international medical journal of experimental and clinical research, 29, e939749. https://doi.org/10.12659/MSM.939749