Fioricet, a combination of acetaminophen, butalbital, and caffeine, is used to treat tension headaches and migraines. Some online sources may advertise Fioricet without a prescription and offer quick delivery, but such sales are both unlawful and potentially unsafe. The barbiturate component (butalbital) carries a risk of dependence and withdrawal symptoms. Proper diagnosis and medical guidance are essential when using this medication to avoid misuse and adverse effects.