PARTICLES FOR THE DELIVERY OF ACTIVE AGENTS

World Intellectual Property Organization Patent

APP PUB NO WO-2005107710-A2
SERIAL NO

PCTUS2005015789

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Particles of less than 100 microns, where an active agent is coated with a matrix of cationic and anionic polymers, are efficient vehicles for delivering active agents to tissues such as skin and mucosal membranes. Such particles are able to deliver compounds to skin with little associated irritation. Prior art topical formulations typically have the disadvantage of causing significant skin irritation.

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