Tenormin
"Twenty years ago (in my mid thirties) I began to suffer from excruciating headaches.  My doctor put me on progesterone cream, and there was some improvement.  He thought that PMS was a contributing factor.  I had a cardiac arrest  when I was 38.  Nothing was found to be wrong with my heart, but I was going through an emotional crisis at the time.  The cardiologist put me on atenolol (25 mg/day; I now take 50 mg/day).  I was put on the atenolol to keep my blood pressure down and keep my heart from beating too fast in emotional situations.  The upside to all this is that I have not had but a couple of migraines in 20 years, and none since the dose was increased to 50 mg."