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dizziness, numbness, and stupor.
The leaves, stems, or unripe fruit do not seem to be safe. If eaten, they can cause cyanide poisoning.
Do not use American elder in amounts greater than found in foods 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.