Senna leaf is a herbal remedy that comes from a group of flowering shrubs that has been used for centuries to treat constipation. Both the leaves and the seeds possess the ability to stimulate the colon to help eliminate intestinal contents. Senna leaf is a potent remedy, and it is not meant to treat chronic constipation, as regular use can result in a potassium deficiency. It also should not be taken along with other laxatives, because the combination could result in a serious case of diarrhea.
The strength of different senna leaf products can vary, so follow package directions.