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Fentanyl Transdermal System

Products Affected - Description

    • Fentanyl transdermal system, Alvogen, 100 mcg/hour, 5 count, NDC 47781-0428-47
    • Fentanyl transdermal system, Alvogen, 12.5 mcg/hour, 5 count, NDC 47781-0423-47
    • Fentanyl transdermal system, Alvogen, 25 mcg/hour, 5 count, NDC 47781-0424-47
    • Fentanyl transdermal system, Alvogen, 50 mcg/hour, 5 count, NDC 47781-0426-47
    • Fentanyl transdermal system, Alvogen, 75 mcg/hour, 5 count, NDC 47781-0427-47

Reason for the Shortage

    • Alvogen did not provide a reason for the shortage.
    • Mallinckrodt refuses to provide availability information.
    • Mylan has fentanyl transdermal patches available.

Available Products

    • Fentanyl transdermal system, Mylan (Viatris), 100 mcg/hour, 5 count, NDC 00378-9124-98
    • Fentanyl transdermal system, Mylan (Viatris), 12.5 mcg/hour, 5 count, NDC 00378-9119-98
    • Fentanyl transdermal system, Mylan (Viatris), 25 mcg/hour, 5 count, NDC 00378-9121-98
    • Fentanyl transdermal system, Mylan (Viatris), 37.5 mcg/hour, 5 count, NDC 00378-9125-98
    • Fentanyl transdermal system, Mylan (Viatris), 50 mcg/hour, 5 count, NDC 00378-9122-98
    • Fentanyl transdermal system, Mylan (Viatris), 62.5 mcg/hour, 5 count, NDC 00378-9126-98
    • Fentanyl transdermal system, Mylan (Viatris), 75 mcg/hour, 5 count, NDC 00378-9123-98
    • Fentanyl transdermal system, Mylan (Viatris), 87.5 mcg/hour, 5 count, NDC 00378-9127-98

Estimated Resupply Dates

    • Alvogen has all fentanyl 12.5 mcg/hr transdermal patches on allocation. The 25 mcg/hr, 50 mcg/hr, 75 mcg/hr, and 100 mcg/hr transdermal patches are on back order and the company estimates a release date in early-June 2023.


Updated May 22, 2023 by Rachael Freeman, PharmD, BCPS. Created May 1, 2023 by Leslie Jensen, PharmD, Drug Information Specialist. © 2023, Drug Information Service, University of Utah, Salt Lake City, UT.



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