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Central side-effects of therapies based on CB1 cannabinoid receptor agonists and antagonists: focus on anxiety and depression.

Fabrício A. Moreira, Maximilian Grieb, Beat Lutz

Best practice & research. Clinical endocrinology & metabolism February 2009 DOI: 10.1016/j.beem.2008.09.003 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Review Peer reviewed
Topics Anxiety Depression
Key findings The authors argue that CB1 receptor agonists (e.g., Delta(9)-tetrahydrocannabinol, nabilone) may in some cases precipitate psychosis and panic, while CB1 antagonists (e.g., rimonabant, taranabant) may lead to behaviors reminiscent of depression and anxiety-related disorders; these side effects must be taken into account in therapeutic exploitation of the endocannabinoid system.

Abstract

Both agonists (e.g. Delta(9)-tetrahydrocannabinol, nabilone) and antagonists (e.g. rimonabant, taranabant) of the cannabinoid type-1 (CB(1)) receptor have been explored as therapeutic agents in diverse fields of medicine such as pain management and obesity with associated metabolic dysregulation, respectively. CB(1) receptors are widely distributed in the central nervous system and are involved in the modulation of emotion, stress and habituation responses, behaviours that are thought to be dysregulated in human psychiatric disorders. Accordingly, CB(1) receptor activation may, in some cases, precipitate episodes of psychosis and panic, while its inhibition may lead to behaviours reminiscent of depression and anxiety-related disorders. The present review discusses these side-effects, which have to be taken into account in the therapeutic exploitation of the endocannabinoid system.

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