镇静剂

例句：

1. 1. The doctor prescribed asedative to help her sleep.
   医生开了一种镇静剂帮助她入睡。
2. 2.She took the medication as directed and feltmuch better after taking it.
   她按照指示服用了药物，服用后感觉好多了。
3. 3. Sedatives are often usedto treat anxiety disorders.
   镇静剂常用于治疗焦虑障碍。