- TANNIC ACID-POLYMER COMPOSITIONS FOR CONTROLLED RELEASE OF PHARMACEUTICAL AGENTS PARTICULARLY IN THE ORAL CAVITY

摘要

The present invention relates to a controlled release or sustained-release compositions for drugs or other agents. In the present invention in the composition of the essential components comprises a polymer and tannic acid or tannin than one kinds. The pharmaceutical or release of other formulation is done at a predetermined time and a predetermined concentration. The site of action of the agent is topical, local or systemic. Polymer is a cellulosic or proteinaceous.