Antianxiety effect of cannabidiol in the elevated plus-maze

FS Guimarães, TM Chiaretti, FG Graeff, AW Zuardi - Psychopharmacology, 1990 - Springer
FS Guimarães, TM Chiaretti, FG Graeff, AW Zuardi
Psychopharmacology, 1990Springer
In order to assess the presence of anxiolytic properties in cannabidiol (CBD) the drug was
tested in an elevated plus-maze model of anxiety, in rats. Doses of 2.5, 5.0 and 10.0 mg/kg
significantly increased the entry ratio (open/total number of entries), an anxiolytic-like effect.
CBD at a dose of 20.0 mg/kg was no longer effective. None of the doses of CBD used
changed total number of entries, a measure of total exploratory activity. Diazepam (2.0
mg/kg) also caused an anxiolytic-like effect in this model. These results indicate that CBD …
Abstract
In order to assess the presence of anxiolytic properties in cannabidiol (CBD) the drug was tested in an elevated plus-maze model of anxiety, in rats. Doses of 2.5, 5.0 and 10.0 mg/kg significantly increased the entry ratio (open/total number of entries), an anxiolytic-like effect. CBD at a dose of 20.0 mg/kg was no longer effective. None of the doses of CBD used changed total number of entries, a measure of total exploratory activity. Diazepam (2.0 mg/kg) also caused an anxiolytic-like effect in this model. These results indicate that CBD causes a selective anxiolytic effect in the elevated plusmaze, within a limited range of doses.
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