migraine prevention
"I used to get migraines 2 days out of every 3, and 2 Excedrin would work about half the time, the other half I needed Imitrex.  After about a month of taking 5 mg/day of amlodipine, which was initially prescribed for borderline hypertension (140/90), my headaches went to once/week, and they were all treatable with one 1 Excedrin.  I only need Imitrex now once every two months instead of of two or three times a week.  What a difference in my life!  I don't understand why this medication isn't used more frequently for migraine sufferers."