导泻

例句：

1. 1. He had to take laxatives to relieve his constipation.
   他不得不服用轻泻剂来缓解他的便秘。
2. 2. The doctor prescribed a laxative for her to help her pass the stool.
   医生给她开了一种轻泻剂，帮助她排出粪便。
3. 3. Laxatives are often used to treat conditions like diarrhea and colic.
   轻泻剂常用于治疗腹泻和痉挛等疾病。