If I take 2 capsules every day, along with a certain vitamin and mineral, I don’t get migraines. I thank God for herbs!
My recipe to prevent headaches is:
350 mg feverfew
100 mg vitamin B2
500 mg magnesium
I take it twice a day, morning and evening. It isn’t like a painkiller, it’s a preventative, although if I start to get a headache it doesn’t hurt to take my next dose right then (because that’s when I usually realize I forgot to take it).