Dexmedetomidine is a highly selective alpha2 agonist with sedative, hypnotic and analgesic effects. It acts mainly on alpha2 receptors in the central blue trip and has little effect on respiration. Dexmedetomidine has a biphasic effect on blood pressure, with lower mean blood pressure at lower blood concentrations and higher blood pressure at higher blood concentrations. Heart rate and cardiac output are reduced in a dose-dependent manner. However, the usage of the medication needs to be analyzed according to the individual’s specific situation, do not use the medication blindly, so as not to endanger your health.