The anthraquinones in Cascara stimulate the smooth muscle of the colon, increase intestinal fluid secretion, and reduce water absorption — resulting in a bowel movement typically within 6–12 hours of ingestion.
Used in formulas for occasional constipation, sluggish digestion, and bowel detox protocols. Often combined with carminative herbs to reduce cramping.
Used by Native American tribes as a sacred purgative. Later adopted by Western herbalists in the 19th century as a bowel remedy.
Supplied as powder, capsules, or tincture. Bark must be aged 1 year or heat-cured before use.
Avoid in intestinal obstruction, appendicitis, pregnancy, or inflammatory bowel conditions (e.g., Crohn’s, ulcerative colitis).
May interfere with absorption of medications or electrolytes; can deplete potassium if overused.
