Acetaminophen / butalbital / caffeine
"I like this medicine for tension headaches.  It works fast.
The bad side is, it makes me jittery and on edge. It must be the low dose of caffeine.  I really don't know.  But I take it as a last resort.  I don't get sleepy or tired. Just a little "out of it"    I know the caffeine is there to help, just wish it was lower.
I also take ativan. Not at the same time, a few hours later.  It gets rid of the fioricet jitters.  Hate to have to take them both in the same day.  I have to much to do, to put my brain in a fog, and my nerves on high alert. With my job I need to be focused.  Can't take on a work day.   
Maybe it's time to try something else.
But..this does work for tension.  So if you can be at home, good headache med to take."