Buy Fioricet online Generic name: acetaminophen, butalbital, and caffeine Brand name: Fioricet This is a combination of medications consisting of acetaminophen, butalbital, and caffeine. Buy Fioricet online, which is used to treat tension headaches and relax muscle contractions involved in tension headaches which are usually related to stress and cause muscle tightness and pain around a person's forehead and neck. Fioricet is an analgesic barbiturate combo. It is unknown if Fioricet is safe and effective in children younger than 12 years. The combination includes: • Butalbital: it is a barbiturate that works in your brain to help you relax • Acetaminophen: is a pain reliever that stops the production of certain chemicals in the brain that causes pain. • Caffeine blocks a natural chemical in your body called adenosine, but it's thought to boost the pain-relieving activity of acetaminophen.