Important: The information contained herein is intended solely to assist clinicians with the management of palliative care patients. It is not intended to Fentanyl is an opioid pain medication, sometimes called a narcotic. Fentanyl patches are a strong prescription pain medicine. The patches are used to treat moderate to severe chronic pain around the clock. Initial evaluation of the maximum analgesic effect of Mezolar Matrix cannot be made before the patch is worn for 24 hours. This delay is due to the gradual increase in serum fentanyl concentration in the 24 hours following initial patch application. Fentanyl patch dosing determination based on current opioid therapy. Recommendations based on data contained in the package insert Final December 2010. For review June 2013 Opioid Conversion Ratios - Guide to Practice 2010 Released December 2010. ©2010. The EMR PCC grants permission to reproduce parts of this publication for clinical and educational use only, provided that the Eastern Metropolitan Region Palliative A morphine equivalent dose (MED) is the amount of opioid prescription drugs, converted to a common unit (milligrams of morphine), that a patient currently has access to based on the information reported by prescribers and pharmacies to OARRS. Opioid Conversion Ratios - Guide to Practice 2013 Released 1st October 2013 ©2013. The EMR PCC grants permission to reproduce parts of this publication for clinical and educational use only, provided that the Eastern Metropolitan Region Palliative FENTANYL EG (Antalgique apparenté à la morphine) : fiche médicament du Vidal de la famille précisant la composition, la posologie, les interactions possibles, les effets indésirables éventuels. CALCULATION OF DAILY MORPHINE EQUIVALENT DOSE (MED) Strength per Unit X (Number of Units/ Days Supply) X MME conversion factor = Daily Demystifying opioiD conversion calculations | 85 transdermal Fentanyl patCh FOrmulatiOns The first TDF product on the market was the branded product, Duragesic.