feverfew (Tanacetum parthenium)

Reported Uses

• NOTE: see Herb & Supplement Effectiveness Rating Definitions table
• migraine [Possibly Effective]
• prurigo nodularis [Insufficient Evidence]
• psoriasis [Insufficient Evidence]
• rheumatoid arthritis [Insufficient Evidence]
• tension-type headache [Insufficient Evidence]

Reported Doses

Safety/efficacy may not be established; reported doses may be derived from limited or potentially inadequate studies with variable regimens, multi-ingredient products, or where concentration of active ingredients may vary widely

Effectiveness Ratings

[see Herb & Supplement Effectiveness Rating Definitions table]

migraine prophylaxis

[Possibly Effective]

Dose: 50-150 mg feverfew powder PO qd; 2.08-18.75 mg feverfew CO2 extract PO tid

prurigo nodularis

[Insufficient Evidence]

Dose: apply cream topically

tension-type headache

[Insufficient Evidence]

Dose: 150 mg PO qd; Start: 150 mg PO bid x4wk; Info: for patients 9 yo and older