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When taken by mouth, black root has been reported to cause stomach pain or cramps, changes in stool color or odor, drowsiness, headache, nausea, and vomiting. Large doses have been linked to reports of liver damage. Taking the fresh root might cause more side effects.
Do not take black root if:
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.
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