Senna is a strong laxative herb which increases bile flow, causing peristalsis. Senna contains anthraquinone glycoside called sennosides, which have been shown to irritate the mucous membrane of the large intestine. This action stimulates the muscles of the large intestine to strongly contract, causing a bowel movement in approximately 10 hours after ingestion of the herb. Sennosides also inhibit fluids from being absorbed in the large intestine, thus enabling the stools to be soft. An effective natural laxative, senna has the disadvantage of causing great abdominal cramps and pain—often referred to as griping or colic—when used alone. Most herbalists combine senna with herbs which relieve gas pain, such as ginger, cloves or various types of mint.

Senna can be found in many over-the-counter and prescription laxatives, including Senokot and Perdiem. Senna increases peristaltic action in the large intestine, providing evacuation in about 6-8 hours. Senna contains high amounts of vitamins B1, B2, B3 (niacin), and C, and has been found helpful for constipation, gout, inflammatory skin conditions, jaundice, and obesity.

Senna should not be used during pregnancy, and only with extreme caution while nursing, as the effects can be conveyed to nursing infants. Senna is also not recommended for those suffering from colitis.

Senna is normally considered safe; however, it can become habit-forming if used often. Senna should only be used for the occasional bout of constipation. Those with chronic constipation should concentrate on improving digestion and liver/gallbladder function, carefully examine their diet, and increase their intake of water. If constipation persists, consult a healthcare practitioner.

Senna Combination