Herb Directory

Cascara sagrada, also known as “sacred bark,” has a fascinating history.

Native American tribes in the Pacific Northwest initially used it to treat constipation. When Spanish conquerors encountered it, they were impressed by its effectiveness and bestowed the name “Sacred Bark” (cascara sagrada). In 1877, it was admitted to the U.S. Pharmacopoeia and remains an official medicine.

Cascara sagrada comes from the bark of a tree found in the northwestern U.S. Its anthraquinone glycosides act as a cathartic or laxative, making it useful for relieving constipation.

Although it’s milder than other laxatives, caution is advised, and it’s not recommended for long-term use or in higher doses.