Fiorinal and Fioricet are medicines for tension-type headaches. Fiorinal contains aspirin and Fioricet contains acetaminophen. They both contain butalbital and caffeine. Codeine is sometimes also added to this combination. Butalbital, a barbiturate sedative, is habit-forming.
These medications should not be used on a daily basis because dependency on them can develop. Regular use, more than 2 days per week, can cause rebound headache, which may not respond to usually effective acute and preventive treatments.