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Details for Patent: 5,720,940

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Details for Patent: 5,720,940

Title: Medicinal aerosol formulations
Abstract:A self-propelling aerosol formulation which may be free from CFC's which comprises a medicament, 1,1,1,2-tetrafluoroethane, a surface active agent and at least one compound having a higher polarity than 1,1,1,2-tetrafluoroethane.
Inventor(s): Purewal; Tarlochan S. (Leamington Spa, GB2), Greenleaf; David J. (Loughborough, GB2)
Assignee: Riker Laboratories, Inc. (St. Paul, MN)
Filing Date:May 31, 1995
Application Number:08/792,209
Claims:1. A method of making an aerosol formulation being suitable for delivery to the lung by inhalation, comprising the steps of:

(a) providing an aerosol container, and

(b) charging to said container:

(i) a medicament in an amount sufficient to provide a plurality of therapeutically effective doses of said formulation,

(ii) an mount of propellant sufficient to propel from said container said plurality of therapeutically effective doses, said propellant being substantially free of chlorofluorocarbons and comprising 1,1,1,2-tetrafluoroethane.
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