A Trial of Dexmedetomidine Hydrochloride Nasal Spray in Preoperative Sedation of Children

Exclusion Criteria

• •1. Not suitable for nasal spray
• •2. Pediatric populations requiring special care or court/social welfare supervision
• •3. Subjects who had been under general anesthesia when they were randomized
• •4. Subjects with a history of mental illness and a history of cognitive impairment epilepsy
• •5. Subjects with cardiovascular disease
• •6. Subjects whose hemoglobin is below the lower limit of normal
• •7. Subjects with a history or possibility of a difficult airway
• •8. Abnormal liver function and/or abnormal renal function
• •9. Adrenoceptor agonists or antagonists or analgesics were used before randomization
• •10. Participated in clinical trials (received experimental drugs)
• •11. History of hypersensitivity to drug ingredients or components
• •12. Other circumstances that the investigator judged inappropriate for participation in this clinical trial