purgative

n. 泻药

Take some purgative and it will help you purge your bowels of bad matter.

吃点泻药有助于你将肠胃中的有害物质除去。

Causing evacuation, especially of the bowels; purgative.

排泄的，排除的引起腹泻，尤指肠泻的；净肠的