目的 分析咸阳市中心医院第二类精神药品的使用情况，为临床合理使用该类药品提供参考和依据。方法 采用回顾性研究方法对2015—2017年咸阳市中心医院第二类精神药品的使用量、销售金额、用药频度（DDDs）、日均费用（DDC）、药品排序比（B/A）进行统计和分析。结果 2015—2017年第二类精神药品的使用品种稳定，药品销售金额和构成比逐年增长，且地佐辛注射液和右佐匹克隆片的销售金额连续3年均位居第1、2位。阿普唑仑片、劳拉西泮片、艾司唑仑片、右佐匹克隆片的DDDs连续3年位居前4位，苯巴比妥注射液的DDDs呈下降趋势。第二类精神药品的DDC基本保持稳定，地佐辛注射液的DDC最高，苯巴比妥钠片的DDC最低。咪达唑仑注射液和盐酸曲马多缓释片的B/A均接近1，阿普唑仑片的B/A最大，地佐辛注射液的B/A最小。结论 咸阳市中心医院第二类精神药品的使用基本合理，但仍存在不合理现象，需进一步持续整改。

Objective To analyze the use of the second class of psychotropic drugs in Xianyang Center Hospital, and to provide reference and basis for the rational use of these drugs in clinic. Methods A retrospective study was carried out to analyze the usage, sales amount, frequency of medication (DDDs), daily average cost (DDC), and drug sequencing ratio (B/A) of the second class of psychotropic drugs in Xianyang City Hospital from 2015 to 2017. Results From 2015 to 2017, the varieties of the second class of psychotropic drugs was stable, and consumption sum and constituent ratio of the second class of psychotropic drugs showed an increasing trend year by year. Consumption sums of Dezocine Injection and Dexzopiclone Tablets were ranked the first and second place for three consecutive years. DDDs of Alprazolam Tablets, Lorazepam Tablets, Eszolam Tablets, and Dexzopiclone Tablets were ranked the top 4 respectively. DDDs of Phenobarbital Injection showed a downward trend. DDC of the second class of psychotropic drugs remained basically stable. DDC of Dezocine Injection was the highest, while DDC of Phenobarbital and Sodium Tablets was the lowest. B/A of Midazolam Injection and Tramadol Hydrochloride Sustained Release Tablets were close to 1. B/A of Alprazolam Tablets was the highest, while B/A of Dezocine Injection was the lowest.Conclusion The use of the second class of psychotropic drugs in Xianyang Center Hospital is reasonable, but there are still unreasonable phenomena and need to be further rectified.