|Description||Feverfew is a member of the botanical family that includes the daisy. It has yellow and white flowers and feathery green leaves. It is primarily the leaves which contain the active ingredient, parthenolide.|
|Function/ Used for||Feverfew has been widely used to prevent the onset of migraines1.
It is thought to prevent the sudden dilation of blood vessels, which is associated with the onset of migraine; however, it does not work to relieve symptoms of a migraine once it has started.
It has also long been used to relieve symptoms of menstrual cramps.
|As a supplement||Feverfew is generally available in a tablet or capsule form, and is often standardised to contain 0.4% parthenolide.
Dosage is 250mg of standardised extract per day for long term use.
|Found in (dietary sources)||N/A|
|Precautions and contraindications||Caution use in those with hypersensitivity to the Asteraceae (Compositae) or Daisy family, i.e. chamomile, ragweed, yarrow, etc.2|
|Use in pregnancy and breastfeeding||Feverfew should not be taken during pregnancy as it may cause contractions of the uterus.
It is also not recommended for breastfeeding women.3
|Interactions e.g. with other medications||Feverfew may inhibit blood clotting; people taking anti-coagulant or anti-platelet (blood thinning) medicines should consult their doctor before use.|
|Adverse effects||Minor abdominal discomfort and diarrhoea has been reported.
Dermatitis, soreness or ulceration of the mouth, and a mild tranquillising effect have also been reported.4
2 Braun & Cohen. Herbs and Natural Supplements: An evidence-based guide. Churchill Livingstone, 2005.
3 Mills, S. & Bone, K. Principles and practice of phytotherapy. Churchill Livingstone, 2000.
4. Williamson, E. M. Potter’s Herbal Cyclopaedia. C.W. Daniel Co Ltd. 2003