NCIt definition : The fruit of Cassia acutifolia and Cassia angustifolia (Cassia) with laxative and
purgative activities. The active ingredients in senna fruit include the hydroxyanthracene
glycosides sennosides A and B (rhein dianthrones) and sennosides C and D (rhein aloe-emodin
heterodianthrones). Sennosides irritate the bowel lining and stimulate the bowel muscular
coat, particularly in the colon, resulting in accelerated bowel transit and evacuation.;