Patent ID: 6689373
Filing Date: 2004-02-10
Classification: A61K,A61M,A61P

Abstract:
A method of treating pain in a subject, the method comprising:completely implanting a drug delivery device in a subject at an implantation site 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, wherein the drug delivery device is adapted for controlled release of drug, the device comprising: a formulation comprising a drug selected from the group consisting of fentanyl and a fentanyl congener, wherein the drug is in the formulation in an amount for treatment of pain in the subject for a period of at least about 3 days; and a housing defining a drug delivery outlet and a reservoir, wherein the formulation is within the reservoir, and the reservoir comprises a biocompatible material impermeable to the formulation; and parenterally delivering the formulation to the subject from the reservoir and through the drug delivery outlet 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.