Synonyms: Bear Wood, Bitter Bark, Cascara, Cascara Bark, Chittem Bark, Rhamni Purshianae Cortex, Rhamnus, Sacred Bark
Family: Rhamnaceae
Genus species: Rhamnus purshiana, Rhamnus purshianus, Frangula purshiana
Type: Tree
Part Used: Stem bark
Homeopathy: Tincture of bark
Location: North Carolina, Oregon, Pacific Coast of North America, Washington, western Canada
Actions: Antispasmodic, bowel cleanser, choleretic, hepatic, increases the population of beneficial intestinal bacteria (acidophilus and bifidophilus) and eliminating undesirable and pathogenic bacterial population, mild purgative, stimulant laxative
Indications: Conditions in which easy defecation with a soft stool is desirable (anal fissures, hemorrhoids, after rectal-anal operations), constipation, dyspepsia, enlarged liver, gallstones, hemorrhoids, intestinal parasites, jaundice, leukemia, liver congestion, parasitic infestation
Homeopathic Indications: Constipation, rheumatism.
Chemicals & Nutrients: Aluminum, beta-Carotene, Calcium, Carbohydrates (80%), Cobalt, Fats (2%), Fiber (30%), Iron, Magnesium, Phosphorus, Potassium, Protein (9%), Sodium
Preparation & Dosages: (effects are seen in 6-8 hours)
Children ages 2-12 (consult health care provider): 150-500 mg single daily dose
Powder: 0.25-1 g daily at bedtime
Tea: 1-2.5 g in 150 ml boiling water, steep 10 minutes and strain
Contraindications: Abdominal pain, appendicitis, colitis, Crohn's disease, diverticulitis, diverticulosis, duodenal ulcer, gastrointestinal disorders, ileus, intestinal obstruction, irritable bowel syndrome, lactation, pregnancy, refulx esophagitis, spastic colitis, stomach ulcer, ulcerative colitis. Not recommended for children under 12 years of age.
Drug Interactions: Due to potassium depletion, the action of cardiac glycosides may be strengthened. May antagonize antidiarrheal drugs.
Side Effects: (Possible adverse effects and/or overdose effects) Diarrhea, nausea, vomiting.
Warning: Excessive intake may result in hypokalemia. Habitual use may induce chronic diarrhea with weakness from excessive loss of potassium. Melanin will pigmentize the mucous membranes of the colon. Limit use to 8 days for aged bark, 2-3 days for the tea.