Patent ID: 6541021
Filing Date: 2003-04-01
Classification: A61K,A61M,A61P

Abstract:
A method of treating pain in a subject, the method comprising:completely implanting in a subject, at an implantation site, a controlled release drug delivery device comprising a pump and a formulation, the formulation comprising a drug selected from the group consisting of fentanyl and a fentanyl congener, wherein the formulation comprises an amount of the drug sufficient for treatment of pain in the subject for a period of at least about 3 days, and wherein the implantation site is selected from the group consisting of a subcutaneous site, a subdermal site, an intramuscular site, an intra-adipose tissue site, and an intra-lymphatic site; and parenterally delivering the formulation from the drug delivery device to the subject whereby the drug enters the systemic circulation and is thereby transported to a site of action, whereby the drug is present at the site of action in an amount sufficient to treat pain.