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Special Precautions & Warnings:Pregnancy and breast-feeding: Not enough is known about the use of forsythia during pregnancy and breast-feeding. Stay on the safe side and avoid use.
Surgery: Because forsythia might slow blood clotting, there is a concern that it might cause extra bleeding during and after surgery. Stop taking forsythia at least two weeks before a scheduled surgery.
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.