Neuropsychiatric adverse events related to the use of GLP-1 receptor agonists

A systematic review

Authors

DOI:

https://doi.org/10.59487/2965-1956-4-16811

Keywords:

Glucagon-Like Peptide-1 Receptor Agonists, rug-Related Side Effects and Adverse Reactions, Mental Disorders

Abstract

Objective: To evaluate the main neuropsychiatric adverse events associated with the use of GLP-1 receptor agonists. Methods: This systematic review analyzed articles published between 2019 and 2025 in the PubMed and Medline databases, using the search terms “GLP-1 agonist,” “mental disorders,” and “adverse effects.” Observational and experimental study designs were included. Nine articles were selected, encompassing diverse methodologies such as pharmacovigilance studies, retrospective cohorts, Mendelian randomization, and post-hoc analyses of randomized clinical trials. Results: Pharmacovigilance studies identified a possible association between GLP-1 receptor agonists and neuropsychiatric adverse events. Analyses involving semaglutide showed adjusted reporting odds ratios of 1.70 for depression, 1.26 for anxiety, and 1.45 for suicidal behavior. Another study reported a ratio of 2.55 for suicidal ideation among semaglutide users for weight loss, as well as cases of eating disorders. In contrast, post hoc analyses of clinical trials did not reveal significant differences in depressive symptoms or suicidal ideation compared with placebo. Mendelian randomization studies suggested a reduced risk of GLP-1 receptor activation for schizophrenia, bipolar disorder, and bulimia nervosa, while one cross-sectional study associated semaglutide with decreased symptoms of anxiety and depression. Conclusion: A direct causal relationship between GLP-1 receptor agonists and severe neuropsychiatric adverse events has not been fully established. Methodological heterogeneity and confounding factors account for the discrepancies: while pharmacovigilance studies raise concerns, more controlled study designs do not confirm causality. Active clinical monitoring of patients is recommended, and larger randomized clinical trials are needed to clarify the risk–benefit profile of these drugs.

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Author Biographies

Ana Carolina Parahyba Asfor, Hospital de Saúde Mental Professor Frota Pinto

Médica psiquiatra. Hospital de Saúde Mental Frota Pinto, Preceptora/Assistente da Residência em Psiquiatria do HSMFP. 

Ticihana Ribeiro de Oliveira, Hospital de Saúde Mental Professor Frota Pinto

Doutora em Saúde Coletiva. Hospital de Saúde Mental Professor Frota Pinto. Nutricionista do ambulatório de Nutrição e transtornos mentais. Fortaleza – Ceará, Brasil.

Matheus Eugênio de Sousa Lima, Hospital de Saúde Mental Professor Frota Pinto

Mestrando em Ciências Médicas. Médico Psiquiatra. Hospital de Saúde Mental Professor Frota Pinto. Preceptor/Assistente da Residência em Psiquiatria

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Published

2025-12-16

How to Cite

1.
Asfor ACP, Oliveira TR de, Lima ME de S. Neuropsychiatric adverse events related to the use of GLP-1 receptor agonists: A systematic review. Dialog Interdis Psiq S Ment [Internet]. 2025 Dec. 16 [cited 2025 Dec. 19];4(supl. 1):e16811. Available from: https://revistas.uece.br/index.php/dipsm/article/view/16811

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