Below:
 • What is it good for?
 • How does it work?
 • How safe is it?
 • What's the best way to take it?

Note: This article has been localised for an Irish audience.

Feverfew (Tanacetum parthenium), is a relative of the daisy, marigold, and dandelion. The name is derived from the Latin word febrifugia, or fever reducer, and feverfew has been used for that purpose since the first century. Historically, the herb has also been used to treat headache, menstrual irregularity, and stomach ache. Today feverfew is a popular alternative migraine remedy.

A number of human studies have shown that taking fresh feverfew leaf or leaf powder regularly may help prevent migraines. In addition, migraines may be less severe in people who take the herb.

Researchers used to believe the primary active ingredient in feverfew is a compound called parthenolide. However, newer evidence suggests that other compounds in feverfew help combat migraines. Feverfew extract containing the standard formula of .2 percent parthenolide was not effective in one human trial.

Studies show that between 7 and 18 percent of people who chew fresh feverfew leaves develop mouth sores, and a few have also complained of irregular heartbeat, constipation, stomach ache, nausea, and dizziness. People sensitive to camomile, ragweed, or yarrow may have an allergic reaction to feverfew. If you have any unpleasant side effects, stop using the herb. Remember that herbs can be powerful drugs and should be taken with caution. Pregnant and lactating women and young children should not take feverfew. If you're considering using the herb regularly, let your GP know.

If you have no unpleasant reaction, you can simply chew one to four fresh or dried feverfew leaves daily. Look for them in health food stores. If you prefer tablets or capsules, ask a herbalist, naturopath or pharmacist to recommend a reputable brand made with dried feverfew leaves. Feverfew extracts might not work.

This article has been revised by Vhihealthe for its audience and may contain, among other things, information or medical practices that are unique to Ireland. Neither Consumer Health Interactive nor the original author make any warranty as to the accuracy of the article as revised, and assume no responsibility for modified content.

First published July 24, 2003
Copyright © 2003 Consumer Health Interactive

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