Botanical names:
Tanacetum parthenium

Parts Used & Where Grown

Feverfew grows widely across Europe and North America. The leaves are used in herbal medicine.

What Are Star Ratings?

Our proprietary “Star-Rating” system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.

For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.

3 Stars Reliable and relatively consistent scientific data showing a substantial health benefit.

2 Stars Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.

1 Star For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.

This supplement has been used in connection with the following health conditions:

Used for Why
3 Stars
Migraine Headache
Standardized herbal extract delivering 250 mcg of parthenolide per day
Feverfew is the most frequently used herb for the long-term migraine prevention. Continuous use of feverfew may reduce the severity, duration, and frequency of migraine headaches.

The most frequently used herb for the long-term prevention of migraines is feverfew. Four double-blind trials have reported that continuous use of feverfew leads to a reduction in the severity, duration, and frequency of migraine headaches, although one double-blind trial found feverfew to be ineffective.

Studies suggest that taking standardized feverfew leaf extracts that supply a minimum of 250 mcg of parthenolide per day is most effective. Results may not be evident for at least four to six weeks. Although there has been recent debate about the relevance of parthenolide as an active constituent, it is best to use standardized extracts of feverfew until research proves otherwise.

A double-blind study found that a combination of feverfew and ginger may be effective for acute treatment of migraines. In that study, 63% of patients taking the herbal preparation experienced pain relief within 2 hours, whereas only 39% taking placebo experienced relief, a statistically significant difference. The product used in this study was a proprietary preparation called LipiGesic M (PuraMed BioScience, Inc., Schofield, WI). The liquid from 1-unit dose applicator was administered sublingually, held under the tongue for 60 seconds, and then swallowed. A second dose was given 5 minutes later. If pain persisted after 1 hour, a second treatment of 2-unit doses could be given. 

Traditional Use (May Not Be Supported by Scientific Studies)

Feverfew was mentioned in Greek medical literature as a remedy for inflammation and for menstrual discomforts. Traditional herbalists in Great Britain used it to treat fevers, rheumatism, and other aches and pains.

How It Works

Botanical names:
Tanacetum parthenium

How It Works

Feverfew contains a range of compounds known as sesquiterpene lactones. Over 85% of these are a compound called parthenolide. In test tube studies, parthenolide prevents excessive clumping of platelets and inhibits the release of certain chemicals, including serotonin and some inflammatory mediators.1 , 2 Feverfew’s parthenolide content was originally thought to account for the anti-migraine action of this herb, but this has been a matter of recent debate.3

According to three double-blind trials with migraine patients, feverfew reduces the severity, duration, and frequency of migraine headaches.4 , 5 , 6 These successful studies employed dried, powdered leaves. One negative study used an alcohol extract suggesting the dried leaf preparation is superior.7

How to Use It

Feverfew leaf products with at least 0.2% parthenolide content are generally used. Standardized leaf extracts may contain up to 0.7% parthenolide. Herbal products in capsules or tablets providing at least 250 mcg of parthenolide per day may be taken.8 It may take four to six weeks before benefits are noticed. Feverfew is useful for decreasing the severity and incidence of migraines. However, it is not an effective treatment for an acute migraine attack.


Botanical names:
Tanacetum parthenium

Interactions with Supplements, Foods, & Other Compounds

At the time of writing, there were no well-known supplement or food interactions with this supplement.

Interactions with Medicines

Certain medicines interact with this supplement.

Types of interactions: Beneficial Adverse Check

Replenish Depleted Nutrients

  • none

Reduce Side Effects

  • none

Support Medicine

  • none

Reduces Effectiveness

  • none

Potential Negative Interaction

  • Warfarin

    Although there are no documented cases of feverfew (Tanacetum parthenium) interacting with warfarin in humans, feverfew has been shown to interfere with certain aspects of blood clotting in test tube studies.

Explanation Required

  • none

The Drug-Nutrient Interactions table may not include every possible interaction. Taking medicines with meals, on an empty stomach, or with alcohol may influence their effects. For details, refer to the manufacturers’ package information as these are not covered in this table. If you take medications, always discuss the potential risks and benefits of adding a supplement with your doctor or pharmacist.

Side Effects

Botanical names:
Tanacetum parthenium

Side Effects

Taken as recommended, standardized feverfew causes minimal side effects. Minor side effects include gastrointestinal upset and nervousness. Chewing feverfew leaves has been reported to cause canker sores.9 Feverfew is not recommended during pregnancy or breast-feeding and should not be used by children under the age of two years.


1. Makheja AN, Bailey JM. A platelet phospholipase inhibitor from the medicinal herb feverfew (Tanacetum parthenium). Prostagland Leukotrienes Med 1982;8:653-60.

2. Heptinstall S, White A, Williamson L, Mitchell JR.. Extracts of feverfew inhibit granule secretion in blood platelets and polymorphonuclear leukocytes. Lancet 1985;1:1071-4.

3. Awang DVC. Parthenolide: The demise of a facile theory of feverfew activity. J Herbs Spices Medicinal Plants 1998;5:95-8.

4. Johnson ES, Kadam NP, Hylands DM, Hylands PJ. Efficacy of feverfew as prophylactic treatment of migraine. Br Med J (Clin Res Ed) 1985;291:569-73.

5. Murphy JJ, Hepinstall S, Mitchell JR. Randomized double-blind placebo controlled trial of feverfew in migraine prevention. Lancet 1988;2:189-92.

6. Palevitch D, Earon G, Carasso R. Feverfew (Tanacetum parthenium) as a prophylactic treatment for migraine: A double-blind placebo-controlled study. Phytother Res 1997;11:508-11.

7. De Weerdt CJ, Bootsma HPR, Hendriks H. Herbal medicines in migraine prevention. Phytomed 1996;3:225-30.

8. Brown DJ. Herbal Prescriptions for Better Health. Rocklin, CA: Prima Publishing, 1996, 91-5.

9. Brown DJ. Herbal Prescriptions for Better Health. Rocklin, CA: Prima Publishing, 1996, 91-5.