If you're looking to buy Fioricet 40mg online, it's important to find a reputable pharmacy that offers secure and instant share transfers. Fioricet is a prescription medication that contains a combination of acetaminophen, caffeine, and butalbital, which is a barbiturate. It's used to treat tension headaches and migraines, but it can be habit-forming and should only be taken as directed by a healthcare professional.