Senna obtusifolia seeds
The most popular use of cassiais for medicinal purposes. It most commonly treats problems with the liver,kidney, intestinal, and vision. For example, it can be used to treat constipation and remove heat from the liver. Cassia seed paste is popular to treat various skin disorders and other parasites, such as ringworm.
Senna is used widely as a laxative. There are two primary types of herbal laxatives. One is called a purgative and includessuch as senna, rhubarb, leptandra, buckthorne and cascara. These often contain bitter principles in the form of anthroquinones that work by stimulating the peristaltic action of the intestinal lining, either directly or by promoting the secretion of bile through the liver and gall bladder.
Senna leaf is a purgative and while it has remarkable effects, it should be used carefully. Usually 30 mg of sennosides per day is the recommended dose, for no longer than ten days.