title: Interaction of RO 15-4513 and ethanol on the behaviour of mice: antagonistic or additive effects?
abstract: Opposite effects were observed of ethanol on the behaviour of mice in the two chambered light/dark test. At a low dose, it had anxiogenic effects, while it produced anxiolytic effects at a higher dose. Selective antagonistic actions of RO 15-4513 against the behavioural effects of ethanol have been reported by others without intrinsic actions. In contrast, we found intrinsic depressive properties of RO 15-4513. This drug reduced locomotion in a running wheel test. We suggest that RO 15-4513 reversed certain effects of ethanol in an additive, rather than interactive, manner. In addition, RO 15-4513 did not block the sedation produced by a high dose of ethanol. Since RO 15-4513 revealed proconvulsant properties, it is proposed that the depressive effects of this drug could be related to its proconvulsive activity.
mesh_terms: D000818:Animals; D001386:Azides / Q000494:pharmacology*; D001522:Behavior, Animal / Q000187:drug effects*; D001569:Benzodiazepines / Q000494:pharmacology*; D002755:Choice Behavior / Q000187:drug effects; D004347:Drug Interactions; D000431:Ethanol / Q000494:pharmacology*; D006993:Hypnotics and Sedatives; D008297:Male; D051379:Mice; D009043:Motor Activity / Q000187:drug effects
chemical_list: D001386:Azides; D006993:Hypnotics and Sedatives; D001569:Benzodiazepines; D000431:Ethanol; C042957:Ro 15-4513