About Feverfew
A herb (Tanacetum parthenium) used for migraine prevention. A Cochrane review found mixed but suggestive evidence that feverfew may reduce migraine frequency, with a stable CO2 extract (MIG-99) showing the clearest benefit. Generally well tolerated.
What Feverfew supports
- Studied for migraine prevention
How much Feverfew to take
The RDA prevents deficiency. The effective range is what clinical trials used to actually move the outcome.
Effective
50–150
mg
Migraine-prevention trials used ~50-150 mg/day, often standardized to parthenolide.
Clinical evidence
Limited clinical evidence. Cochrane review: mixed but suggestive benefit for migraine frequency
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