Medicinal aerosol formulations
First Claim
Patent Images
1. A method of making a suspension aerosol formulation 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 mount sufficient to provide a plurality of therapeutically effective doses,(ii) an amount 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; and
(c) dispersing said medicament.
1 Assignment
0 Petitions
Accused Products
Abstract
A self-propelling aerosol formulation which may be free from CFC'"'"'s 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.
122 Citations
1 Claim
-
1. A method of making a suspension aerosol formulation 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 mount sufficient to provide a plurality of therapeutically effective doses, (ii) an amount 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; and (c) dispersing said medicament.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current Assignee3M Innovative Properties Company (3M Company)
-
Original AssigneeRiker Laboratories, Inc. (3M Company)
-
InventorsGreenleaf, David J., Purewal, Tarlochan S.
-
Primary Examiner(s)Page, Thurman K.
-
Assistant Examiner(s)Benston, Jr., William E.
-
Application NumberUS08/471,616Time in Patent Office881 DaysField of Search424/45, 424/46, 128/200.14US Class Current424/45CPC Class CodesA61K 9/008 comprising drug dissolved o...A61K 9/124 characterised by the propel...
