My daughter is still suffering from a terrible spinal headache, but when we were told to give her large amounts of caffeine, we went out and bought some
No-
Doz. Funny thing about that, is when we were walking out of the door at WalMart, the guy checking our receipt asked if someone had a bad headache, LOL. I would never have thought of using No Doz for that purpose, but it worked extremely well and got rid of her headache (although only temporarily).