Penn Herb Wellness Guide


Also indexed as:Petasites frigidus, Petasites hybridus
Butterbur: Main Image© Martin Wall
Botanical names:
Petasites frigidus, Petasites hybridus

Side Effects

There are no known side effects as long as pyrrolizidine alkaloids are not present. When they are present, they can cause serious liver damage and even liver failure or death. Therefore, pyrrolizidine alkaloidcontaining extracts should not be used.

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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 2021.