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Fentanyl Patch dosage determination

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The 50, 75, and 100 mcg/hr patches should only be used in patients already on and tolerant to opioid therapy. This calculator, which is based roughly on information  provided by  ©Janssen Pharmaceuticals Inc.,  computes a conservative estimate of the equivalent fentanyl patch  based on the patient's current opioid therapy.  According to the manufacturer, 50% of the patients in clinical trials required a dose increase after initial application using a similar computation. All patients should also be prescribed a short-acting narcotic for breakthrough pain. 
All calculations must be confirmed before use.
The authors make no claims of the accuracy of the information contained herein; and these suggested doses are not a substitute for clinical judgement. Neither GlobalRPh Inc. nor any other party involved in the preparation of this program shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user's use of or reliance upon this material.    PLEASE READ THE DISCLAIMER CAREFULLY BEFORE ACCESSING OR USING THIS SITE. BY ACCESSING OR USING THIS SITE, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS SET FORTH IN THE DISCLAIMER.
Fentanyl Patch Converter

Source: Ortho-McNeil, Inc. 2006-2008. All rights reserved. 
Manufactured by: ALZA Corporation Mountain View, CA 94043 Distributed by: Janssen, L.P.Titusville, NJ 08560 [Add new code post-approval] Revised February 2008 
©Janssen 2008.

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Fentanyl Patch Converter