Patent ID: 7302293
Filing Date: 2007-11-27
Classification: A61K,A61M,A61N

Abstract:
1. A patient-worn device for transdermally delivering fentanyl by electrotransport to a human patient suffering from pain, comprising: a donor reservoir formulation comprised of a fentanyl salt solution; a counter reservoir; a source of electrical power electrically connected to said reservoirs; and a control circuit for controlling electrotransport current, said control circuit including a switch which activates said device, wherein said donor reservoir, said power source and said control circuit deliver a dose of about 20 μg to about 60 μg of fentanyl over a predetermined delivery period of up to about 20 minutes and terminate said delivery at the end of said delivery period, and wherein said control circuit allows up to about 100 additional of said doses over a period of about 24 hours, and wherein said device delivers a therapeutically effective amount of fentanyl solely by electrically induced or electrically enhanced transport.