1. To act on as a cathartic. 
   使通便，给…服泻药
2. A medicine or drug, especially a cathartic. 
   药，药剂药或药剂，尤指泻药
3. A purgative agent or medicine; a cathartic. 
   导致腹泻的药剂；泻药
4. a tasteless colorless powder used medicinally as a cathartic. 
   一种无味无色的粉末，医学上用作泻药。
5. A stimulant; a tonic. 
   兴奋剂；强壮剂

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