The Efficacy and Safety of Nabilone (A Synthetic Cannabinoid) in the Treatment of Anxiety

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Abstract
The anxiolytic properties of nabilone, a synthetic cannabinoid resembling the natural cannabinoids, were studied in 25 outpatients suffering from anxiety. The drug was compared with a placebo in a double‐blind manner over a 28‐day treatment period. Patients were seen weekly by the physician and were rated by the Hamilton Rating Scale for Anxiety and the Patient's Global Evaluation as well as by patient‐rated evaluations. The results of the study showed a dramatic improvement in anxiety in the nabilone group when compared with placebo (P < 0.001). Side effects reported were dry mouth, dry eyes, and drowsiness. Patients did not report any of the subjective “altered state” experience of marihuana.