Olmesartan
"Suffered severe crippling migraines on a regular basis, doctor put me on Olmesartan 40mg 3 times a day, and the migraines gradually went away completely. Tapered off, the migraines came back. Started back on, migraines went away again. I do not have high bloodpressure, and taking Olmesartan have only lowered my blood pressure slightly. Been on Olmesartan now for 4 years."