<prompt> Dexmedetomidine is aCentrally acting alpha 2 agonistPeripherally acting alpha2 agonistCentrally acting alpha 2 antagonistPeripherally acting alpha 2 antagonist  <response>: Ref: KD Tripathi pharmacology 7th edition page.no: 384 Dexmedetomidine is a centrally active a2A agonist It is introduced for sedating critically illventilated patients in the intensive care unit. It is used as an adjunct to anaesthesia. Analgesia and sedation are produced with little respiratory depression, amnesia, or anaesthesia 