flumazenil
Pronunciation: floo-MAZ-eh-nil
A benzodiazepine antagonist used to reverse the sedative and amnestic effects of benzodiazepines such as midazolam in dental anesthesiology.
Full Definition
Flumazenil competitively inhibits benzodiazepine binding sites on GABA-A receptors, rapidly reversing benzodiazepine-induced sedation, amnesia, and respiratory depression. In dental anesthesiology, it is a critical rescue agent following over-sedation with midazolam or diazepam. Editors should note the correct spelling—'flumazenil', not 'flumazanil' or 'flumazepam'—and distinguish it from naloxone, which reverses opioids rather than benzodiazepines. A key clinical caveat that should be reflected accurately in patient information materials is that flumazenil's duration of action may be shorter than that of the reversed benzodiazepine, necessitating extended monitoring.
Usage
Usage note: Do not confuse with naloxone (opioid antagonist). Common misspelling: 'flumazanil'. Brand name Romazicon is capitalised; generic is not.
In Context
- "Flumazenil 0.2 mg IV was administered after the patient failed to respond to verbal stimulation following midazolam sedation." — Sedation incident/reversal report
- "Discharge criteria require that patients who received flumazenil be monitored for re-sedation for a minimum of two hours." — Post-anesthesia care unit protocol