Amlodipine
"Prescribed for BP but also nearly eliminated migraines. I started having migraines 13 years ago and high BP 1 year ago. My first BP prescription was 5-10mg amlodipine daily. It lowered my BP and *almost* more importantly nearly eliminated all migraines (from previous 2-3 per month to a few for the year of which none were severe enough to require real migraine medications). I believe amlodipine has also expanded and intensified whatever fatigue I might normally experience, but *for me* that is an acceptable tradeoff (yes, fatigue can be limiting, but migraines are limiting and excruciatingly painful). I can see where a person taking amlodipine only for BP might be unhappy with the side effects, but the migraines are far far worse."