title: [The action of the benzodiazepine antagonist Ro 15-1788].
abstract: The benzodiazepine-receptors are close by the GABA-receptors. They are found in all areas of the brain, especially in the area of the cortex. The imidazo-benzodiazepine Ro 15-1788 has a high affinity to the receptor without showing any biological activity. The antagonist Ro 15-1788 cancels the sleeping effect, which was produced by benzodiazepines, within 30-60 s. Deep phases of sleep after 4 mg per 70 kg body weight lormetazepam, a dose which was not in clinical use up to now as well as the sleeping effect of 2 mg flunitrazepam per 70 kg body weight and 10-11 mg midazolam per 70 kg body weight are safely antagonized without adverse reactions. According to pharmacodynamic researches by means of EEG and psychometry the half-life period of the antagonist is shorter (1-2 h) than that of the agonist. The clinical application of the antagonist Ro 15-1788 (in patients) is at hand. The control of benzodiazepine-N2O/O2-anaesthesia seems to be guaranteed with the introduction of the antagonist for clinical use.
mesh_terms: D000758:Anesthesia; D000818:Animals; D014151:Anti-Anxiety Agents / Q000037:antagonists & inhibitors*; D001570:Benzodiazepinones / Q000378:metabolism / Q000494:pharmacology*; D001921:Brain / Q000378:metabolism; D004569:Electroencephalography; D005442:Flumazenil; D006207:Half-Life; D006801:Humans; D051381:Rats; D011963:Receptors, GABA-A / Q000378:metabolism; D012890:Sleep / Q000187:drug effects
chemical_list: D014151:Anti-Anxiety Agents; D001570:Benzodiazepinones; D011963:Receptors, GABA-A; D005442:Flumazenil
vernacular_title: Zur Wirkung des Benzodiazepin-Antagonisten Ro 15-1788.