It is a soft purgative because of the presence of ample Anthraquinone. Senna leaves and pods have been shown to have laxative activity. It is useful in habitual constipation. Pharmacological investigations show that sennosides A and B account for the entire activity of the senna leaves and pods, Leaves contain glycosides, sennoside A, B, C and D. Wo naphthalene glycosides have been isolated from leaves and pods.
