What type of study is this?

This is a Systematic Review study (also classified as: Meta-Analysis, RCT).

September 17, 2025Cannabis and Cannabinoid Research

Effects of Different Cannabinoid Formulations on Anxiety-Related Disorders, and Tourette Syndrome: A Systematic Review and Meta-Analysis

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Authors

ARAdrieli Oliveira RaminelliUniversidade de Ribeirão Preto JSJoão Luís Q. SimeiUniversidade de São Paulo FGFrancisco Silveira GuimarãesNational Council for Scientific and Technological Development

Discussion

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Implication

Systematic review and meta-analysis shows mixed efficacy of cannabinoids for anxiety disorders and Tourette syndrome, suggesting further research is needed.

Key Points

Cannabinoid formulations show mixed results for anxiety disorders and Tourette syndrome, with evidence pointing to potential efficacy in certain conditions.
Meta-analysis of 21 RCTs found a moderate significant effect of pure CBD on specific anxiety disorders but overall heterogeneous outcomes.
Pharmaceutical-grade Δ9-THC displayed moderate efficacy, particularly for reducing nightmares in PTSD and tic severity in Tourette syndrome.
Current evidence remains low quality and requires larger, well-designed studies to validate cannabinoid effectiveness for these mental health conditions.

Cite This Study

Raminelli et al. (2025) studied this question.

synapsesocial.com/papers/68d4606031b076d99fa60181 https://doi.org/10.1177/25785125251378242

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Implication

Systematic review and meta-analysis shows mixed efficacy of cannabinoids for anxiety disorders and Tourette syndrome, suggesting further research is needed.

Effects of Different Cannabinoid Formulations on Anxiety-Related Disorders, and Tourette Syndrome: A Systematic Review and Meta-Analysis

Discussion

Member takes

Implication

Key Points

Cite This Study

Effects of Different Cannabinoid Formulations on Anxiety-Related Disorders, and Tourette Syndrome: A Systematic Review and Meta-Analysis

Discussion

Member takes

Implication

Key Points

Cite This Study

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