title: The effect of a single dose of quazepam (Sch-16134) on the sleep of chronic insomniacs.
abstract: The present study evaluated the efficacy of 25 mg of quazepam, a new benzodiazepine hypnotic, in a population of chronic insomniacs. The results indicate that a single dose (25 mg) administered for one night was efficacious when measured both objectively by polysomnographic recording and subjectively by questionnaire with no reported side-effects. The change in the objective measures paralleled the direction of change in subjective measures. Sleep efficiency and sleep maintenance were improved without EEG changes in Stages 2, 3-4, and REM. Further study is needed to evaluate the effects of chronic administration of different doses of quazepam in chronic insomniacs.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D014151:Anti-Anxiety Agents / Q000009:adverse effects / Q000627:therapeutic use*; D001569:Benzodiazepines; D002986:Clinical Trials as Topic; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos; D012890:Sleep / Q000187:drug effects*; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy*; D012894:Sleep Stages / Q000187:drug effects
chemical_list: D014151:Anti-Anxiety Agents; D010919:Placebos; D001569:Benzodiazepines