Bev, I read your post about wondering if you might possibly be taking too many Fiorinal eachday. I do the same thing in part, because my daily migraines give me no relief and I just want to feel good and with Fiorinal I can actually function for a couple of hours. But the half life of it is so short that I have to take another shortly after which in turn soon builds a tolenrance level that was much higher than when I first used them. I totally understand and empathize. CB