Petasites hybridus (PA-free extract)
Patented PA-free butterbur extract — MUST be certified pyrrolizidine alkaloid-free. Clinical evidence for migraine prevention (75mg 2x daily) and hay fever (Ze 339 extract). One of the best-studied herbal migraine preventives. German standard.
Sign in and complete your health profile to see safety warnings personalized to your age, sex, medications, conditions, and allergies for this herb.
If you take any medications, review these interactions carefully.
CYP enzymes.
Full contraindication details are available to signed-in users. Create a free account.
Burping, headache, GI upset. Well tolerated.
Full dosage ranges, extraction ratios, and step-by-step preparation instructions for Butterbur PA-Free are available to members.
Create a free accountPersonalized Guidance
Our Herbal Support Finder matches you with herbs based on your wellness goals, health profile, and medications.
