Health Notes


Also indexed as:Geranium maculatum, Alum Root, Old Maid's Nightcap, Wild Geranium, Alum Bloom
Cranesbill: Main Image © Steven Foster
Botanical names:
Geranium maculatum

Active Constituents and Proposed Mechanism of Action

Cranesbill is high in tannins, which may account for its anti-diarrhoeal activity.2 Little scientific research exists to clarify cranesbill’s constituents and actions.

Recommended Dosage

A tea can be prepared by boiling 1–2 teaspoons (5–10 grams) of the root for ten to fifteen minutes in 2 portions (500 ml) of water.3 People can drink three (750 ml) or more portions per day. Cranesbill tincture (approximately 1/2 teaspoon or 3 ml) TID is also commonly used, although generally in combination with other herbs, for diarrhoea. Dried, powdered cranesbill root is sometimes used in a herbal combination to treat Crohn’s disease; however, there are no scientific studies to support this combination.

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The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2024.