Feverfew

A Doctor’s Guide to Herbs, by Dr. Isadore Rosenfeld, May 31, 1998, Parade Magazine
Dr. Rosenfeld’s latest book is Dr. Rosenfeld’s Guide to Alternative Medicine

Feverfew sometimes prevents migraine headaches. It’s worth a try, but you have to stay with it for several weeks - it takes a long time to work. The label should state that it contains 0.2% parthenolide (the active ingredient). Feverfew interacts with blood thinners (anticoagulants), so be sure your doctor knows you’re taking it. You may need to have your blood tested more often to make sure it’s not too thick or too thin.