Botanical Index No. 47

Anserina

potentilla anserina

Safety & Contraindications

Class 1. “Hazards and/or side effects not known for proper therapeutic dosages”. No contraindications known. Commission E reports no contraindications, adverse effects, or interactions, except for gastric irritation. Other sources report adverse effects of GI disturbances. Sensitive individuals may experience stomach upset and vomiting. The warning with which CAN lambast uva-ursi should as well apply to other herbs with almost as much tannin: “In view of the high tannin content, prolonged use may cause chronic liver impairment.”. Containing tannin, its extracts might be expected to show antiallergic, antihypertensive, antiviral, immunostimulant and interferon-generating activities. Catechins have been specifically recommended for colitis.

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