METHOD OF DELIVERING BIOACTIVE AGENTS TO MUCOSALLY ASSOCIATED LYMPHORETICULAR TISSUE AND COMPOSITIONS THEREFOR

摘要

A method, and compositions for use therein capable, of delivering a bioactive agent to an animal entailing the steps of encapsulating effective amounts of the agent in a biocompatible excipient to form microcapsules having a size less than approximately ten micrometers and administering effective amounts of the microcapsules to the animal. A pulsatile response is obtained, as well as mucosal and systemic immunity.