Purging cassia, scientifically known as Senna alexandrina, is a plant native to Northern Africa and the Middle East. It is commonly referred to as senna and has been used for centuries for its medicinal properties. The plant contains compounds called anthraquinones, particularly sennosides, which have a natural laxative effect.

Purging cassia is well-known for its use as a natural remedy for constipation and is often found in over-the-counter laxative products. The anthraquinones in the plant stimulate the muscles in the intestines, promoting bowel movements and relieving constipation. Due to its potent laxative effects, it is important to use purging cassia under the guidance of a healthcare professional to avoid potential side effects.