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Pharmacological profile of the imidazopyridine zolpidem at benzodiazepine receptors and electrocorticogram in rats

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Summary

Zolpidem is a novel non-benzodiazepine related hypnotic, which possesses an imidazopyridine structure. This drug has preferential affinity for the3H-diazepam binding site in the rat cerebellum, while it is only weakly active at inhibiting3H-Ro 5-4864 binding to the rat kidney. The potency of zolpidem at displacing3H-Ro 15-1788 binding to rat cerebral cortex membranes is enhanced in the presence of GABA. On the sleep pattern of the electrocorticogram in the curarised rat, zolpidem induces a physiological type of slow wave sleep with rapid onset of action. Zolpidem differs from classical benzodiazepine drugs, in possessing an atypical binding profile to3H-benzodiazepine receptors, and because it does not affect the sleep patterns.

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Arbilla, S., Depoortere, H., George, P. et al. Pharmacological profile of the imidazopyridine zolpidem at benzodiazepine receptors and electrocorticogram in rats. Naunyn-Schmiedeberg's Arch. Pharmacol. 330, 248–251 (1985). https://doi.org/10.1007/BF00572441

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  • DOI: https://doi.org/10.1007/BF00572441

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