Also indexed as:Arctic Butterbur, Bog Rhubarb, Butter Dock, Pestilence Wort, Petasites frigidus, Petasites hybridus, Purple Butterbur, Western Coltsfoot
© Martin Wall
Common names:Arctic Butterbur, Bog Rhubarb, Butter Dock, Pestilence Wort, Purple Butterbur, Western Coltsfoot
Botanical names:Petasites frigidus, Petasites hybridus
Parts Used & Where Grown
Butterbur, or Petasites hydridus, is found in colder, northern regions of Russia and Europe. A species native to the northern United States and much of Canada is Petasites frigidus. All parts of either plant are used, including root, rhizome, leaves, and flowers. Both species are easily confused with their close cousin, Eastern coltsfoot (Tussilago farfara), a plant that looks the same and has similar properties and hazards.
Caution: Due to reports of liver toxicity, butterbur products are being voluntarily withdrawn from markets in the United Kingdom. Based on these reports, butterbur should not be used unless a doctor determines that the potential benefits outweigh the risks. People taking butterbur should be monitored by the doctor for adverse effects.
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This supplement has been used in connection with the following health conditions:
Traditional Use (May Not Be Supported by Scientific Studies)
Traditionally the entire plant was used as a demulcent to soothe a dry, spasmodic cough.1 It was primarily made into a tea, and used only for short periods of time. Using the herb as a tea may have helped reduce the liver's exposure to butterbur's toxic compounds, as they are not normally water soluble.
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The information presented in Aisle7 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 June 2015.