Fioricet contains a combination of acetaminophen, butalbital, and caffeine Acetaminophen is a pain reliever and fever reducer.
Butalbital is in a group of drugs called barbiturates. It relaxes muscle contractions involved in a tension headache. Caffeine is a central nervous system stimulant. It relaxes muscle contractions in blood vessels to improve blood flow.
Fioricet is used to treat tension headaches that are caused by muscle contractions.
When taking butalbital, you may experience withdrawal symptoms 8 to 36 hours after the last dose. Withdrawal symptoms may include anxiety, muscle twitching, tremor, weakness, dizziness, nausea and vomiting, insomnia, weight loss, and even seizures when the medication is discontinued.
Due to the risk of seizures with a withdrawal from butalbital, medical treatment in a monitored setting under the care of a physician is indicated.