The Dangers of Cascara Sagrada Bark

Cascara sagrada bark is an herbal supplement available commercially in capsules, tea and liquid extract. People take the herb to relieve occasional constipation.

Effects on Children

• People should be cautious about giving cascara sagrada to their children because it can cause diarrhea. This can result in fluid loss and electrolyte imbalances, as well as vitamin and mineral deficiencies.

Effects on Elderly People

• Electrolyte depletion may also have significant effects on elderly people, resulting in problems with coordination, weakness and low blood pressure when standing.

Medications

• The laxative effect of cascara sagrada bark can move oral medications through the gastrointestinal system too quickly, making them less effective.

Dependence

• People who use cascara sagrada bark routinely can become dependent on it, resulting in chronic constipation. According to Dr. Ray Sahelian, to avoid dependence, cascara sagrada should not be taken for more than 7 consecutive days.

Melanosis Coli

• Chronic use also can cause darkening of the colonic interior, a condition called melanosis coli. This is not thought to be a harmful effect, but it may cause the death of cells and can sometimes reduce bowel function.

Common Side Effects

• Aside from diarrhea, people taking cascara sagrada bark may experience abdominal cramps, upset stomach and nausea.