Fioricet® (Butalbital, Acetaminophen, and Caffeine Tablets USP) is supplied in tablet form for oral administration. Each tablet contains the following active ingredients: butalbital USP . . . . . . . . . . . .50 mg acetaminophen USP . . . . . . 325 mg caffeine USP . . . . . .… Continue reading Fioricet efficacy