ArticlePsychopharmacology2019
Differential effects of psychotropic drugs on microbiome composition and gastrointestinal function.
Article in Psychopharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 141 papers, 3 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.
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Who cites it
141 citing papers in PubMed, 3 syntheses or guidelines pooled it, 258 citations in OpenAlex.
- Unravelling the role of the gut microbiome in antipsychotic-induced weight gain and metabolic dysfunction in humans and rodents: A systematic review.Dialogues in clinical neuroscience · 2026Pooled it
- Pharmaco-psychiatry and gut microbiome: a systematic review of effects of psychotropic drugs for bipolar disorder.Microbiology (Reading, England) · 2025Pooled it
- Compositional and Functional Alterations in Intestinal Microbiota in Patients with Psychosis or Schizophrenia: A Systematic Review and Meta-analysis.Schizophrenia bulletin · 2023Pooled it
- The Safety, Efficacy, and Feasibility of Fecal Microbiota Transplantation in a Population With Bipolar Disorder During Depressive Episodes: A Pilot Parallel Arm Randomized Controlled Trial: Sécurité, efficacité et faisabilité de la transplantation de microbiote fécal chez une population atteinte de troubles bipolaires, au cours d'épisodes dépressifs : essai pilote contrôlé à répartition aléatoire et à groupes parallèles.Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2026Trial
- Trial
- Probiotics for Gastrointestinal Symptoms and Quality of Life in Autism: A Placebo-Controlled Pilot Trial.Journal of child and adolescent psychopharmacology · 2019Trial
- Gut Microbiota Modulation in CNS Disorders: Therapeutic Strategies and Implications for Drug Efficacy.Molecular neurobiology · 2026Review
- Psychotropic Drugs: A Promising Non-Antibiotic Agent to Combat Multi-Drug-Resistant Microorganisms.Drug development research · 2026Review
- Aripiprazole modulates splenic microbiota and immune response elicited by single prolonged stress in rats.Pharmacological reports : PR · 2026Article
- Fluoxetine-Induced Changes in Escherichia coli Physiology: Effects of Secreted Metabolites on Cell Viability and Colistin Susceptibility.Probiotics and antimicrobial proteins · 2026Article
- Article
- Role of Gut Microbiota in Psychiatric Disorders: From Mechanistic Insights to Therapeutic Strategies.Journal of Korean medical science · 2026Review
- Prucalopride, a serotonin type 4 receptor agonist, induces fast anxiolytic/antidepressant effects and concomitant changes in the gut microbiota.NPJ biofilms and microbiomes · 2026Article
- Factors influencing gut microbial colonization: A host-microbe-environment interaction perspective.Current research in food science · 2026Review
- Intestinal microbial community assessment in patients with different forms of epilepsy and autoimmune encephalitis: An exploratory study.Gut microbes reports · 2026Article
- Mental health and gut-brain crosstalk: implications for depression and Alzheimer's disease.Neuroscience applied · 2026Review
- Gut microbiota signatures associated with lithium treatment and clinical response in patients with bipolar disorder.Frontiers in microbiology · 2026Article
- Bridging the gut and mind: a narrative review of depression in Crohn's disease and emerging gut-brain axis therapies.Frontiers in neuroscience · 2026Review
- Perinatal citalopram exposure alters the gut composition and microbial metabolic profiles of Sprague-Dawley rat dams and female offspring but not male offspring.Biology of sex differences · 2025Article
- Exploring the etiology of colitis: insights from gut microbiota research.Gut microbes · 2025Review
81 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 at 3 institutions in 1 country.
Funding
Abstract
rationaleGrowing evidence supports a role for the microbiota in regulating gut-brain interactions and, thus, psychiatric disorders. Despite substantial scientific efforts to delineate the mechanism of action of psychotropic medications at a central nervous system (CNS) level, there remains a critical lack of understanding on how these drugs might affect the microbiota and gut physiology.
objectivesWe investigated the antimicrobial activity of psychotropics against two bacterial strain residents in the human gut, Lactobacillus rhamnosus and Escherichia coli. In addition, we examined the impact of chronic treatment with these drugs on microbiota and intestinal parameters in the rat.
resultsIn vitro fluoxetine and escitalopram showed differential antimicrobial effects. Lithium, valproate and aripiprazole administration significantly increased microbial species richness and diversity, while the other treatments were not significantly different from controls. At the genus level, several species belonging to Clostridium, Peptoclostridium, Intestinibacter and Christenellaceae were increased following treatment with lithium, valproate and aripiprazole when compared to the control group. Animals treated with escitalopram, venlafaxine, fluoxetine and aripiprazole exhibited an increased permeability in the ileum.
conclusionsThese data show that psychotropic medications differentially influence the composition of gut microbiota in vivo and that fluoxetine and escitalopram have specific antimicrobial activity in vitro. Interestingly, drugs that significantly altered gut microbial composition did not increase intestinal permeability, suggesting that the two factors are not causally linked. Overall, unravelling the impact of psychotropics on gastrointestinal and microbiota measures offers the potential to provide critical insight into the mechanism of action and side effects of these medications.
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What OpenQuestion holds
Registered trials
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.