Butterbur (Petasites hybridus)
Solid evidence for migraine. Not a miracle worker, but genuinely useful for the right person.
Verdict
6/10 Mixed
Evidence
Grade B / 100+ Studies
The No-BS Summary
8 things. 60 seconds. Everything you need.
WHAT IT DOES
Migraine herb with baggage. PA-free only.
DOES IT WORK?
6/10 Mixed. Strong evidence for migraine prevention. MUST be PA-free (pyrrolizidine alkaloid free) or it damages liver. Petadolex is the safe brand.
HOW MUCH TO TAKE
50-75mg PA-free extract 2x daily
COST
Premium. $50-80/month. Make sure the evidence backs the spend.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Give it 4-8 weeks for full effects. Patience pays.
SAFETY
Few things to check: pa_free_only, liver_risk. Worth mentioning to your doc.
HOW IT FEELS
Fewer migraines. Less severe when they hit.
QUICK ANSWERS
+ 4 more questions
DOSE-RESPONSE CURVE
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