Amitriptyline
"My headaches are tension, rather than migraine.  However, the pain was just intense and debilitating.  I was missing work a couple times a month due to these headaches.  Dr. started my on this med and since then I have had only 2 severe headaches.  Dr. also told me that if I do still get one of them, this med would relieve the pain much faster and headache would go away faster."