cascara sagrada Extract



What Is It?

Cascara sagrada is a natural laxative made from the reddish-brown bark of a tree (Rhamnus purshiana) native to the Pacific Northwest. It was used by various Native American tribes, who also passed their "sacred bark" on to Spanish explorers (cascara sagrada means sacred bark in Spanish).

Other European settlers were also quick to adopt this traditional remedy for constipation and other discomforts. But it was not formally used in western medicine until 1877, when the pharmaceutical producer Eli Lilly & Company introduced "Elixir Purgans," a popular product containing cascara as well as several other laxative herbs.

Today, numerous over-the-counter laxatives feature cascara sagrada as a key ingredient. Because it's so mild, the herb is frequently combined with stronger laxatives, such as aloe vera latex. To work properly, the bark must be carefully prepared--cured for at least one year or heated and dried to speed up the aging process. Aging is essential because the fresh bark is very irritating to the gastrointestinal system, causing vomiting and intestinal spasms.

Cascara sagrada is recognized as safe and effective by the Food and Drug Administration. It appears in the national formularies of most countries, and has been in the United States Pharmacopoeia since 1890.

Health Benefits

There have been a limited number of clinical trials on cascara sagrada that have explored its value for cleansing the colon before bowel examinations and similar diagnostic tests. Its value is clear for easing constipation--when it's taken properly and at a safe dosage. In fact, cascara is such a mild laxative that it can safely be used by the elderly, and for the mild constipation that can occur following anal or rectal surgery.

Specifically, cascara sagrada may help to:


Control occasional constipation. Early plant chemists identified the active laxative constituents in cascara sagrada bark: anthraquinone derivatives. These compounds stimulate peristalsis, the vigorous wavelike contractions of the large intestine that keep food moving through the digestive system. When cascara speeds the process up, the body produces a softer, quicker bowel movement because the intestine has had less chance to absorb the liquid from the stool. Several studies have shown that cascara sagrada is effective in easing chronic constipation in elderly people.

Treat hemorrhoids and anal fissures. Combined with conventional measures to soften the stool (plenty of dietary fiber, water, and exercise), occasional use of cascara sagrada preparations makes sense for preventing the pressure and pain associated with hemorrhoids and anal fissures (cracks in the skin near the anus). In fact, by speeding up bowel movements, hemorrhoids are also less likely to develop.

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