Delivery systems for pharmaceutical or therapeutic actives
AssigneeUnion Carbide Chemicals and Plastics Company Inc.
InventorsEmmett M. Partain, III., George L. Brode, II.
Life of this patent
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Abstract
Delivery systems containing at least one aminopolysaccharide derivative are provided for the delivery of pharmaceutical or therapeutic actives to a desired topical or mucous membrane site in a subject, and wherein upon delivery, the systems provides a biocompatible, substantive, gas permeable, film from which actives are available at the designated site.
Claims17
A biocompatible, substantive, film-forming delivery system for the delivery of pharmaceutical or therapeutic actives to a desired topical site of a subject, said system being comprised of pharmaceutical of therapeutic actives and from about 0.1 to about 99.99 weight percent of the system of at least one aminopolysaccharide selected from the group consisting of:
- (1) chitosonium polymers, and
- (2) covalent chitosan derivatives, and wherein said system after delivery to said site, provides a non-irritating, substantive, gas permeable, film from which the actives are available for treatment of said subject at said site.
Dependencies are inferred from the claim text.