Feverfew Extract Source Naturals, Inc. 50 Tabs Feverfew Extract 50 TabletFeverfew (Tanacetum parthenium) is a member of the daisy family. Its extract has been shown in human cell culture studies to inhibit the synthesis of prostaglandins known to cause physical discomfort. Further research needs to be conducted to confirm its effects, if any, in humans.Suggested Use As a dietary supplement take 1 or 2 tablets daily between meals - Or as directed by your healthcare professional.Supplement FactsServing Size: 2 TabletsServings Per Container: 25Amount Per Serving% Daily ValueTotal Carbohydrate1 gVitamin C (as ascorbic acid)20 mg33%Calcium (as calcium carbonate)72 mg7%Magnesium (as magnesium oxide)140 mg35%Feverfew Leaf Extract Standardized to 0.5% Parthenolides400 mgFeverfew Whole Plant100 mgPercent Daily Values are based on a 2,000 calorie dietOther Ingredients: Sorbitol, stearic acid, modified cellulose gum, and silica.Warnings: Keep out of reach of children. As with all dietary supplements, consult your healthcare professional before use. See product label for more information. Features: Source Naturals, Inc. Product Details: Item Weight: 1.92 ounces Shipping Weight: 1.9 ounces UPC: 021078002086