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digestive system upset and occasionally allergic skin rash.
Special Precautions & Warnings:Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking cowslip if you are pregnant or breast-feeding. Stay on the safe side and avoid use.
High blood pressure, low blood pressure: There is some concern that cowslip might interfere with blood pressure control.
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.