ReviewJournal of psychopharmacology (Oxford, England)2019
Microdosing psychedelics: More questions than answers? An overview and suggestions for future research.
Review in Journal of psychopharmacology (Oxford, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 5 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
81 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- Psychedelic-induced hypomania and mania: a systematic review and meta-analysis.Molecular psychiatry · 2026Pooled it
- The Use of Psychedelics in the Treatment of Adult ADHD: A Systematic and Mechanistic Review.International journal of molecular sciences · 2026Pooled it
- The subtle science: a systematic review of psilocybin magic mushroom and truffle microdosing.Frontiers in psychiatry · 2026Pooled it
- Incremental efficacy systematic review and meta-analysis of psilocybin-for-depression RCTs.Psychopharmacology · 2025Pooled it
- In the new era of psychedelic assisted therapy: A systematic review of study methodology in randomized controlled trials.Psychopharmacology · 2024Pooled it
- Safety and Efficacy of Repeated Low-Dose LSD for ADHD Treatment in Adults: A Randomized Clinical Trial.JAMA psychiatry · 2025Trial
- Neural complexity is increased after low doses of LSD, but not moderate to high doses of oral THC or methamphetamine.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Trial
- Microdosing with psilocybin mushrooms: a double-blind placebo-controlled study.Translational psychiatry · 2022Trial
- Low doses of LSD reduce broadband oscillatory power and modulate event-related potentials in healthy adults.Psychopharmacology · 2022Trial
- Repeated low doses of LSD in healthy adults: A placebo-controlled, dose-response study.Addiction biology · 2022Trial
- Pharmacokinetics and Pharmacodynamics of Lysergic Acid Diethylamide Microdoses in Healthy Participants.Clinical pharmacology and therapeutics · 2021Trial
- Acute dose-dependent effects of lysergic acid diethylamide in a double-blind placebo-controlled study in healthy subjects.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021Trial
- Safety, tolerability, pharmacokinetics, and pharmacodynamics of low dose lysergic acid diethylamide (LSD) in healthy older volunteers.Psychopharmacology · 2020Trial
- Prevalence and Reasons for Microdosing Cannabis, Psilocybin, LSD, and MDMA Among U.S. Adults.American journal of preventive medicine · 2026Article
- Long- term administration of low doses of psilocybin causes epigenetic changes in the rat medial prefrontal cortex.Psychopharmacology · 2026Article
- Naturally Derived Psilocybin for Therapeutic Use: A Six-Criterion Framework for Evidence, Safety, and Benefit-Risk Considerations in Policy and Clinical Development.Biomolecules · 2026Review
- Article
- Therapeutic Effects of Low-Dose Psilocybin in Depression and Other Mental Disorders: A Systematic Review.Psychedelic medicine (New Rochelle, N.Y.) · 2026Review
- Microdosing psilocybin for major depressive disorder: study protocol for a phase II double-blind placebo-controlled randomised partial crossover trial.BJPsych open · 2026Article
- Design, Synthesis, and Pharmacokinetic Profiling of Fluorinated ReversibleJournal of medicinal chemistry · 2026Article
21 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn the past few years, the issue of 'microdosing' psychedelics has been openly discussed in the public arena where claims have been made about their positive effect on mood state and cognitive processes such as concentration. However, there are very few scientific studies that have specifically addressed this issue, and there is no agreed scientific consensus on what microdosing is.
aimThis critique paper is designed to address questions that need to be answered by future scientific studies and to offer guidelines for these studies. APPROACH: Owing to its proximity for a possible approval in clinical use and short-lasting pharmacokinetics, our focus is predominantly on psilocybin. Psilocybin is allegedly, next to lysergic acid diethylamide (LSD), one of the two most frequently used psychedelics to microdose. Where relevant and available, data for other psychedelic drugs are also mentioned.
conclusionIt is concluded that while most anecdotal reports focus on the positive experiences with microdosing, future research should also focus on potential risks of (multiple) administrations of a psychedelic in low doses. To that end, (pre)clinical studies including biological (e.g. heart rate, receptor turnover and occupancy) as well as cognitive (e.g. memory, attention) parameters have to be conducted and will shed light on the potential negative consequences microdosing could have.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.