FDA authorised Fentanyl Transdermal on 9 February 2011 · 15,638 US adverse-event reports
Marketing authorisations
FDA — authorised 9 February 2011
Application: ANDA077154
Marketing authorisation holder: SPECGX LLC
Status: supplemented
FDA
Status: approved
Safety signals — FAERS
Adverse reaction reports describe suspected side effects. A report does not mean the drug caused the event — co-medications, underlying disease and coincidence all contribute.
Window: 20 April 2025 – 20 April 2026
Total reports: 15,638
Most-reported reactions
Drug Ineffective — 3,107 reports (19.87%)
Product Adhesion Issue — 2,749 reports (17.58%)
Product Quality Issue — 1,615 reports (10.33%)
Wrong Technique In Drug Usage Process — 1,584 reports (10.13%)
Pain — 1,445 reports (9.24%)
Wrong Technique In Product Usage Process — 1,439 reports (9.2%)