Cascara bark 1:2

Botanical name: Rhamnus purshiana
Common name: Cascara, Cascara buckthorn, Cascara sagrada, Bearberry, Chittem stick, Chitticum stick
Plant part: Bark
Strength: 1:2
Source (Organic or Trade): Trade
Country of Origin: USA
Weekly Dosage (mL): 15-35mL 

Actions: Laxative

Main indication: Constipation

Safety information: Not for long term use. Caution during pregnancy and breastfeeding. Caution with irritable bowel syndrome or inflammatory gastrointestinal conditions.

Drug Interactions: Digoxin, quinidine and other antiarrhythmic drugs - possible hypokalaemia with long term laxative use, thus potentiating possible drug toxicity
Thiazide diuretics - potassium depletion