Cascara sagrada is a stimulant laxative. It works by causing muscle contractions in the intestines. These muscle contractions help move stool through the bowels. The bark contains chemicals called anthraquinones that give it its color and its laxative effect.
Notice: Do not use this product if you have abdominal pain or diarrhea. Consult a health care provider if you are pregnant or nursing a baby. Discontinue use in the event of watery stools. Not for long term use.