migraine prevention
"I have had migraines since I was a young child.  They have gotten worse as the years have gone by (I'm 37).  I would be completely debilitated the entire week I was menstruating with several other less severe migraines throughout the month.  I tried all the triptans, and ended up with horrible rebound migraines.  I tried Topamax and it made my headaches worse (and the side effects were truly terrible).  Propranolol has been a huge lifesaver.  It hasn't completely erased my headaches, but I get much fewer during the month and my menstrual migraine is manageable--not completely debilitating.  My only complaint:  my heart rate doesn't get high enough to exercise aggressively.  But it's worth it to not have the out-of-control migraines."