dexmedetomidine
Pronunciation: deks-meh-deh-TOM-ih-deen
A selective alpha-2 adrenergic agonist used as a sedative and analgesic adjunct in dental anesthesiology, notable for providing sedation without respiratory depression.
Full Definition
Dexmedetomidine acts centrally on alpha-2 receptors in the locus coeruleus to produce sedation that closely resembles natural sleep, while maintaining a patent airway and spontaneous respiration. In dental anesthesiology, it is used as a premedication, as part of monitored anesthesia care (MAC) protocols, or as an adjunct to reduce opioid requirements. Editors should take care with the spelling—the term is frequently misspelled as 'dexmeditomidine' or 'dexmedetomide'. Intranasal and intravenous routes are both referenced in dental literature and must be specified in clinical records. It is not to be confused with clonidine, a related but less selective agent.
Usage
Usage note: Frequent misspelling: 'dexmeditomidine'. Verify spelling carefully in clinical manuscripts and drug-administration records. Brand name is Precedex (capitalised).
In Context
- "Intranasal dexmedetomidine was used as a pre-operative anxiolytic before IV access was established." — Pediatric dental anesthesia case report
- "The formulary listed dexmedetomidine as a preferred adjunct for office-based dental sedation in ASA II patients." — Institutional formulary document