Petasites hybridus
Used to support seasonal respiratory comfort and head comfort. MUST use PA-free (pyrrolizidine alkaloid-free) preparations only.
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If you take any medications, review these interactions carefully.
May interact with medications metabolized by the liver (CYP enzymes).
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PA-free extracts: burping, headache, GI upset. Non-PA-free: severe liver damage, carcinogenicity.
Full dosage ranges, extraction ratios, and step-by-step preparation instructions for Butterbur are available to members.
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