Fioricet Oral tablet drug summary. Find medication information including related drug classes, side effects, patient statistics and answers to frequently asked. A: Q: Do Canadian pharmacies fill prescriptions for Fioricet or Fiorinal? A: The short answer Find the best drug prices from verified online pharmacies. Español. The average Fioricet price is about $ for a supply of 30, mg mg mg . Follow your doctor's instructions for dosage and use of this medication.