Patent ID: 6511652
Filing Date: 2003-01-28
Classification: A61K,A61M,A61P,B65D

Abstract:
A metered dose inhaler, comprising:a can having a mouth and an internal surface wherein part or all of said internal surface is coated with a polymer comprising one or more fluorocarbon polymers, wherein said fluorocarbon polymer comprises monomeric units made from one or more monomers selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, perfluoroalkoxyalkylene, and vinylidene fluoride; a cap covering said mouth of said can in communication with a drug metering valve; and an inhalation medicament formulation, consisting essentially of a medicament formulated with a fluorocarbon propellant, wherein the fluorocarbon propellant is 1,1,1,2-tetrafluoroethane or 1,1,1,2,3,3,3-heptafluoro-n-propane or combinations thereof, and optionally one or more excipients selected from the group consisting of preservative, flavoring, antioxidant, antiaggregating agent, ethanol and diethyl ether.