Prescribed typically for tension or stress-based headaches, migraines, and other chronic pains, the combination medication of generic Fioricet comes with a fast-acting formulation. With specially formulated ingredients of butalbital, acetaminophen, and caffeine, it helps to relax the muscles and anxiety. The recommended dosage of this prescription drug is 1-2 tablets every four hours for adults. Nonetheless, the maximum dose should never surpass 6 pills a day, otherwise, overdose concerns and liver damage can come up.