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The effectiveness of flumazenil in reversing the sedation and amnesia produced by intravenous midazolam. 1990

M W Ochs, and M R Tucker, and T G Owsley, and J A Anderson
University of Florida, Gainesville.

In this double-blind study 31 outpatients undergoing third molar extraction were randomly assigned to one of two groups. All patients were sedated with intravenous midazolam (IV) by titration method. The flumazenil group (n = 20) received an average of 0.8 +/- 0.17 mg of flumazenil IV. The placebo patients (n = 11) each received 10 mL of normal saline. By both observer and patient alertness ratings, patients receiving flumazenil appeared significantly more alert than placebo patients at 5, 15, 30, and 60 minutes following reversal. After reversal the flumazenil group had significantly higher scores than the placebo group at all intervals through 60 minutes. All the patients receiving flumazenil were able to walk without assistance at 5 minutes, compared with only one patient in the placebo group, and more patients in the flumazenil group recognized the picture card shown to them at 5, 15, 30, and 60 minutes postreversal. Flumazenil is effective in terminating the amnestic properties of midazolam, but this appears to occur to a lesser extent than the reversal of its sedative properties.

UI MeSH Term Description Entries
D008297 Male Males
D008874 Midazolam A short-acting hypnotic-sedative drug with anxiolytic and amnestic properties. It is used in dentistry, cardiac surgery, endoscopic procedures, as preanesthetic medication, and as an adjunct to local anesthesia. The short duration and cardiorespiratory stability makes it useful in poor-risk, elderly, and cardiac patients. It is water-soluble at pH less than 4 and lipid-soluble at physiological pH. Dormicum,Midazolam Hydrochloride,Midazolam Maleate,Ro 21-3981,Versed,Hydrochloride, Midazolam,Maleate, Midazolam,Ro 21 3981,Ro 213981
D009048 Motor Skills Performance of complex motor acts. Motor Skill,Skill, Motor,Skills, Motor
D011184 Postoperative Period The period following a surgical operation. Period, Postoperative,Periods, Postoperative,Postoperative Periods
D004311 Double-Blind Method A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment. Double-Masked Study,Double-Blind Study,Double-Masked Method,Double Blind Method,Double Blind Study,Double Masked Method,Double Masked Study,Double-Blind Methods,Double-Blind Studies,Double-Masked Methods,Double-Masked Studies,Method, Double-Blind,Method, Double-Masked,Methods, Double-Blind,Methods, Double-Masked,Studies, Double-Blind,Studies, Double-Masked,Study, Double-Blind,Study, Double-Masked
D005260 Female Females
D005442 Flumazenil A potent benzodiazepine receptor antagonist. Since it reverses the sedative and other actions of benzodiazepines, it has been suggested as an antidote to benzodiazepine overdoses. Flumazepil,Anexate,Lanexat,Ro 15-1788,Romazicon,Ro 15 1788,Ro 151788
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000647 Amnesia Pathologic partial or complete loss of the ability to recall past experiences (AMNESIA, RETROGRADE) or to form new memories (AMNESIA, ANTEROGRADE). This condition may be of organic or psychologic origin. Organic forms of amnesia are usually associated with dysfunction of the DIENCEPHALON or HIPPOCAMPUS. (From Adams et al., Principles of Neurology, 6th ed, pp426-7) Amnesia, Dissociative,Amnesia, Global,Amnesia, Hysterical,Amnesia, Tactile,Amnesia, Temporary,Amnesia-Memory Loss,Amnestic State,Amnesia Memory Loss,Amnesia-Memory Losses,Amnesias,Amnesias, Dissociative,Amnesias, Global,Amnesias, Hysterical,Amnesias, Tactile,Amnesias, Temporary,Amnestic States,Dissociative Amnesia,Dissociative Amnesias,Global Amnesia,Global Amnesias,Hysterical Amnesia,Hysterical Amnesias,State, Amnestic,States, Amnestic,Tactile Amnesia,Tactile Amnesias,Temporary Amnesia,Temporary Amnesias
D000766 Anesthesia, Dental A range of methods used to reduce pain and anxiety during dental procedures. Dental Anesthesia

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