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  • Title: Assessment of a new hypnotic imidazo-pyridine (zolpidem) as oral premedication.
    Author: Cashman JN, Power SJ, Jones RM.
    Journal: Br J Clin Pharmacol; 1987 Jul; 24(1):85-92. PubMed ID: 2887188.
    Abstract:
    1 A new imidazo-pyridine hypnotic (zolpidem 10 mg and 20 mg) was compared with placebo as premedication before general anaesthesia in female patients undergoing minor gynaecological surgery. Efficacy and tolerance before and after anaesthesia were assessed. Psychomotor testing was used to study recovery from anaesthesia. 2 Both doses of zolpidem produced good sedation pre-operatively but only the higher dose was associated with anterograde amnesia. 3 Premorbid anxiety scores were low in the group of patients studied and were unaffected by either dose of zolpidem. 4 There were no significant effects on the course of anaesthesia. However, postoperatively there was a tendency for wake-up to be delayed in those patients who received either dose of zolpidem. 5 Postoperative recovery, as indicated by tests of psychomotor performance, was noticeably delayed with a dose of 20 mg compared with placebo whilst psychomotor performance had returned towards baseline levels 3 h after wake-up in those patients who had received placebo. The zolpidem 10 mg group was intermediate. 6 Zolpidem may be a suitable premedicant when hypnosis and amnesia only are required.
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