Dexmedetomidine HCl 是一种有效的，高度选择性α-2肾上腺素受体激动剂，具有显著的镇静效果，从而降低患者的麻醉量。An active isomer of medetomide, a potent and highly selective α2-adrenoceptor agonist. Dexmedetomidine HCl is a highly selective and potent alpha-2 adrenoceptor agonist, which reduces anesthetic requirements for patients by providing significant sedation. An active isomer of medetomide, a potent and highly selective α2-adrenoceptor agonist.