evacuant
/ɪˈvakjʊənt
/adjective
(Of a medicine or treatment) acting to induce some kind of bodily discharge.
noun
An evacuant medicine, such as a laxative, an emetic, or a sudorific.For constipation common remedies were liquorice powder, Nyalls Figsen (Californian Syrup of Figs), cascara evacuant or senna pods.
Origin
Mid 18th century: from Latin evacuant- 'emptying (the bowels'), from the verb evacuare, later in the more general sense 'remove (contents)'.