The Study is Being Conducted to Evaluate the Efficacy and Safety of Dexmedetomidine Hydrochloride Microneedles for Preoperative Sedation in Children

A multicenter, randomized, double-blind, placebo-controlled Phase IIa clinical trial, using Dexmedetomidine Hydrochloride Microneedles as an investigational drug and the Dexmedetomidine Hydrochloride Microneedles blank preparation as a comparator. After going through the confirmation of inclusion/exclusion criteria with signed subjects, they will have a procedure either of the two arms. The subjects should follow designated physician's instructions accurately during the clinical trial period.