Alvogen, Inc Defective delivery system - patches could be multi-stacked, adhered one on top of the other, in a single product pouch.
Class I · Ongoing
Apr 18, 2019
Alvogen, Inc Product Mix-Up: Customer complaint that their carton labeled as Fentanyl Transdermal Systems, 12 mcg/h contained five patches labeled and containing 50 mcg/h.
Sources: CMS Medicare Part D Prescribers 2024; CMS Open Payments 2025 (general payments; a payment is not evidence of wrongdoing); FDA enforcement reports (openFDA).