Fioricet is often prescribed for the treatment of tension headaches, which are characterized by mild to moderate pain that may feel like a tight band around the head.Fioricet may also be prescribed for the management of migraines, particularly those accompanied by muscle tension and mild to moderate pain Fioricet contains a combination of medications that work synergistically to alleviate headache symptoms. Acetaminophen provides pain relief, butalbital is a muscle relaxant, and caffeine helps to enhance the effects of acetaminophen