Steve,
that's an off-label use. The patches are supposed to be replaced every 72 hours. The therapeutic dose in your blood is exceeding the manufacturers directions for use.

http://www.rxlist.com/duragesic-drug.htm

One must have a doctor planned, step down, phase out plan from Fentanyl or convulsions and death could occur. 6 weeks is about an average time to minimize the withdrawal. Properly done, it should be mildly uncomfortable for about 3 days.

I stand corrected some patients are on a 48 hour interval - ask your doctor why? It's not common here unless you are in some whoop ass pain!

Last edited by Gary; 01-16-2009 08:53 PM. Reason: information update

Gary Allsebrook
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Dx 11/22/02, SCC, 6 x 3 cm Polypoid tumor, rt tonsil, Stage III/IVA, T3N0M0 G1/2
Tx 1/28/03 - 3/19/03, Cisplatin ct x2, IMRT, bilateral, with boost, x35(69.96Gy)
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"You are a mist that appears for a little while and then vanishes" (James 4:14 NIV)