A preliminary study of the effects of prepeated doses of clobazam on aspects of performance, arousal and behaviour in a group of anxiety rated volunteers.

Repeated doses of a 1,5 benzodiazepine, clobazam, were administered to a group of consenting volunteers. Performance on a psychomotor performance task was not impaired by repeated doses of the drug. Subjective assessments of anxiety were reduced commensurate with an increase in the level of cortical integration, measured via critical flicker fusion thresholds, suggesting that the anxiolytic activity of the drug is related to its effect on arousal. Important differences were found between the responses of high and low anxiety subjects on objective measures of performance and arousal and on self-completion analogue rating scales.