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Microdosing psychedelics in the treatment of ADHD and comorbid disorders

K. P. Kuypers

European Psychiatry April 1, 2024 DOI: 10.1192/j.eurpsy.2024.44 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Naturalistic study Peer reviewed
Population Individuals with ADHD
Intervention Microdosing psychedelics
Duration 4-week microdosing period
Topics Microdosing
Citations 3
Key points Microdosing over 4 weeks reduced ADHD symptoms, increased trait mindfulness, and decreased neuroticism compared to baseline.

Abstract

Abstract Microdosing psychedelics has garnered considerable attention within both nonprofessional circles and the scientific community in recent years. This method involves taking small, non-hallucinogenic doses of substances like LSD or psilocybin over weeks or months, purportedly to enhance specific behaviors, emotions, or address psychiatric conditions. Exploring these assertions is crucial given the potential therapeutic value of microdosing, especially in conditions that respond positively to full psychedelic doses, such as depression. The full psychedelic experience might not always be suitable due to various factors like age, capacity to consent or comprehend the experience (e.g., dementia), or individual personality traits that might hinder surrendering to the experience. Microdosing could potentially serve as a maintenance therapy post-full dose administration, aiding specific psychological or biological processes during therapy or therapeutic exercises. Recent studies in healthy individuals highlight that small psychedelic doses have nuanced effects on pain perception, mood, neuroplasticity, sleep duration, brain connectivity, and default mode network synchronicity. However, some parameters show null effects after both single and repeated administration. Our survey research uncovered that individuals with ADHD reported symptom relief through microdosing, deeming it more effective than their conventional treatments. Subsequently, we conducted a naturalistic study following individuals with ADHD across a 4-week microdosing period. Our findings indicated a reduction in symptoms over time, an increase in trait mindfulness, and a decrease in neuroticism compared to baseline. While these results are intriguing, they necessitate validation in a clinical trial. We have recently concluded such a trial and are currently analyzing the data to further explore these effects. Disclosure of Interest K. Kuypers Grant / Research support from: The author is a principal investigator on a research project that is sponsored by Mindmed, a company that is developing psychedelic medicines.

Comparable studies

Other observational and cohort studies on microdosing, most cited first.

Study Year Design Participants
Microdosing psychedelics: personality, mental health, and creativity differences in microdosers Respondents recruited from online forums 2019 Observational study
Positive expectations predict improved mental-health outcomes linked to psychedelic microdosing Individuals planning a weekly microdosing regimen 2021 Prospective observational study n = 81
Might Microdosing Psychedelics Be Safe and Beneficial? An Initial Exploration. More than a thousand individuals from 59 countries 2019 Observational cohort n = 1,000
Psilocybin microdosers demonstrate greater observed improvements in mood and mental health at one month relative to non-microdosing controls Psilocybin microdosers and non-microdosing comparators 2022 Naturalistic observational study n = 1,133
Nonlinear Pharmacokinetics of Oral Quinidine and Verapamil in Healthy Subjects: A Clinical Microdosing Study Healthy subjects 2011 Observational cohort

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