Dexmedetomidine hydrochloride

An agonist of α2-adrenergic receptor that used in veterinary medicine for its analgesic and sedative properties; also protects against lung injury induced by ischemia-reperfusion through inhibition of autophagy in rats. (In Vitro) :Medetomidine has high selectivity for α2 adrenoceptors (Ki=1.08 nM) over α1 adrenoceptors (Ki=1750 nM) in rat brain membranes as measured by the displacement of [3H]clonidine.Medetomidine (0.1-100 nM) inhibits the twitch response in field-stimulated mouse vas deferens, with a pD2 of 9.0. (In Vivo) :Medetomidine (10-100 μg/kg; i.v. at 5-min intervals) produces a dose-dependent pupillary dilatation in pentobarbitone-anaesthetized rats.