镇痛剂及镇静剂的分类及其作用机理北京医科大学第一医院儿科（１０００３４）秦炯疼痛是一种主观体验，主要由感觉不适和相应的情感反应构成。因此，对疼痛程度的感知和描述，个体差异很大。儿科患者，尤其是新生儿和婴幼儿，常难以清楚地表达对疼痛的体验。因此长期以来... Analgesics and sedatives classification and its mechanism of action First Hospital of Beijing Medical University Pediatrics (100034) Qin Jiong pain is a subjective experience, mainly by the feeling of discomfort and the corresponding emotional response. Therefore, individual perceptions and descriptions of pain levels vary widely. Pediatric patients, especially newborns and infants, often have difficulty articulating the experience of pain. So for a long time ...