I have had migraines all my life, my sister's have them too. I have been on quite a bit, lately, the IMITREX Nasal Spray which ultimately didn't work. I have been waking up with a full blown migraine and treatment is usually too late to anything to help except a trip to the doctor's and a shot to help. I am hoping this Coragard (Nadolol) will help PREVENT them. Any comments on this for migraines would be very much appreciated.