http://www.prescriptiondrug-info.com/threads/how-long-will-fioricet-stay-in-your-system-D75817_s2.htm Recent Posts About how long will fioricet stay in your system at The People's Medicine Community. how long will fioricet stay in your system en-us Copyright 2009 Prescription Drug Info All Rights Reserved. 11/21/2009 5:10:05 PM 20 http://www.PrescriptionDrug-Info.com/threads/how-long-will-fioricet-stay-in-your-system-D75817_s2.htm#169331 24 hours or so, depending on how long you have been taking it and how often. <br> <br>Do you have a prescription for it? Thu, 16 Apr 2009 21:44:45 -0800 http://www.PrescriptionDrug-Info.com/threads/how-long-will-fioricet-stay-in-your-system-D75817_s2.htm#169216 how long does fiorcet stay in yor system Wed, 15 Apr 2009 05:57:40 -0800