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low potassium; heart problems; stomach problems; muscle weakness; and blood problems, including blood in the urine. Some people get uncomfortable cramps from alder buckthorn. If you experience diarrhea or watery stools while using alder buckthorn, stop taking it.
The fresh bark can cause severe vomiting. Make sure you are using a bark product that is at least one year old or has been heat processed.
Special Precautions & Warnings:Pregnancy and breast-feeding: It is LIKELY UNSAFE to take alder buckthorn by mouth during pregnancy or breast-feeding. Avoid using it.
Children: Alder buckthorn is LIKELY UNSAFE when taken by mouth by children younger than 12 years of age.
Diarrhea: Don't use alder buckthorn if you have diarrhea. Its laxative effects may worsen this condition.
Intestinal disorders, including intestinal blockage, appendicitis, Crohn's disease, irritable bowel syndrome (IBS), or ulcerative colitis: Don't take alder buckthorn if you have a bowel obstruction; appendicitis; unexplained stomach pain; or inflammatory conditions of the intestines including Crohn's disease, colitis, and irritable bowel syndrome (IBS).
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.