Buy Fioricet online for the treatment of tension headaches caused due to muscle contraction. It consists of a fixed combination of butalbital, acetaminophen, and caffeine. The role of all three ingredients is different, and all of them work in the human brain to reduce headaches caused due to muscle contraction. Buy Fioricet online containing Butalbital, a barbiturate that works in the central nervous system to help manage tension headaches. It relaxes muscle contractions involved in causing a tension headache. Acetaminophen is a non-opioid pain reliever that reduces fever and alleviates pain. Caffeine is a sedative that stimulates the human central nervous system that likewise relaxes muscle contractions in the brain's blood vessels to improve the flow of the blood.