Wild Senna
Wild Senna (Cassia hebecarpa)
Cassia hebecarpa is an herbaceous perennial legume that can grow as tall as 6 feet. It grows in the eastern part of North America, from Ontario to Georgia. It is mostly found in areas with moist soils, but it can also occasionally be found in drier locations. Senna varieties are found all over the world, but many of their medicinal properties are similar. Several Senna species are widely used as laxatives, both historically and in modern medicine, due to the presence of compounds called anthraquinones (Belt, 2002). The laxative effect is derived from the leaves or fruit pods of the plant. In traditional medicines, Senna is used as a tea, an extract, or syrup. Modern uses provide the extract in pill form. (Cirillo & Capasso, 2015)
Historical Use
Historical information on the use of senna can be found in Nicholas Culpeper’s English Physician; and Complete Herbal written in 1789. The leaves of Senna (usually the Senna alexandrina/Cassia senna variety) were used as a laxative and emetic. It was also thought to cleanse the body and blood by purging “obstructions,” melancholy, and phlegm. Jacob Bigelow’s American Medical Botany highlights Cassia marilandica, a close cousin of Cassia hebecarpa. Although demonstrating similar medicinal virtues to that of Senna alexandrina, Cassia marilandica required a third more to have the same effect. Thus, Senna alexandrina was preferred and imported to America.
Latest Research
- Evaluation of Bowel Cleansing Agents on Colonoscopy Outcomes: A Retrospective Study of Preparation Quality and Procedure Metrics
by C I Bulut on August 31, 2026 at 10:00 amCONCLUSION: In conclusion, all three bowel preparation agents were comparable in terms of cleansing quality and tolerability. However, sodium phosphate was associated with a shorter cecal intubation time. These findings suggest that bowel preparation should be individualized based on patient characteristics and institutional practices. Further prospective studies with larger sample sizes are recommended to validate these results.
- Colon Cleaning after Inadequate Bowel Preparation: A Pooleddata Analysisby Angelo Zullo on June 28, 2026 at 10:00 am
CONCLUSIONS: Effective bowel cleansing is not achieved in nearly 20% of patients due to inadequate bowel preparation and although multiple approaches have been investigated, none has consistently provided adequate bowel preparation for all patients.
- TRPV4-Dependent Epithelial Mechanoadaptation and Barrier Remodeling Mediate Sennoside-Induced Distal Colonic Motilityby Yusuke Hara on June 12, 2026 at 10:00 am
Improvement of bowel function is accompanied by increased luminal flow and altered epithelial mechanical forces, yet the underlying epithelial mechanisms remain unclear. We investigated whether enhanced luminal stimulation is associated with epithelial mechanotransduction and junctional remodeling during changes in colonic motility. Sennoside was orally administered at 4.8 mg/kg body weight to 5-week-old male BALB/cAJcl mice for 21 days to model increased luminal stimulation. Stool…
- Association between senna use and outcomes in critically ill patients with hepatic failure: A propensity score-matched real-world cohort studyby Qilin Yang on May 29, 2026 at 10:00 am
CONCLUSIONS: In this large real-world cohort, senna use was independently associated with lower 28-day mortality with evidence of a dose-response relationship. Prospective randomized controlled trials are warranted to establish causality and inform clinical practice guidelines.
- Comparison of sennoside A + B and sodium picosulfate-based regimens for bowel preparation: a prospective randomized trialby I Durak on May 14, 2026 at 10:00 am
CONCLUSIONS: In routine clinical practice, sennoside A + B provided higher cleansing efficacy than PM/Ca as reflected by higher BBPS scores and a greater probability of achieving adequate bowel preparation. However, PM/Ca demonstrated a more favorable tolerability profile. Bowel preparation selection should balance efficacy and tolerability while considering patient-related factors such as educational level.
References
Belt, S. (2002). Wild Senna Plant Guide. Retrieved from https://plants.usda.gov/factsheet/pdf/fs_sehe3.pdf
Cirillo, C., & Capasso, R. (2015). Constipation and Botanical Medicines: An Overview. Phytother Res, 29(10), 1488-1493. doi:10.1002/ptr.5410
Other Resources
Natural Medicines record: Senna (Access to UI only)