Controlled release drug delivery system for the periodontal pocket
April 29, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3185625 Dosage form Long-acting articles for oral delivery and process Pharmaceutical preparation for oral cavity administration Method and preparation for administration to the mucosa of the oral or nasal cavity Method and preparation for administration to the mucosa of the oral or nasal cavity Prolonged release therapeutic compositions based on hydroxypropylmethylcellulose Drug delivery system comprising a reservoir containing a plurality of tiny pills Composition for periodontal administration Controlled release of pharmacologically active agents from an absorbable biologically compatible putty-like composition InventorAssigneeApplicationNo. 06/856961 filed on 04/29/1986US Classes:424/493, Containing polysaccharides (e.g., sugars)424/486, Synthetic polymer424/497Containing solid synthetic polymersExaminersPrimary: Swisher, Nancy A. B.Attorney, Agent or FirmInternational ClassesA61K 9/16 (20060101)A61K 9/00 (20060101) A61K 6/00 (20060101) AbstractA controlled release drug delivery system for placement in the periodontal pocket. The system comprises a plurality of drug-containing microparticles or microcapsules, between 10 and 500 microns in size, suspended in a pharmaceutically acceptable carrier medium, and is capable of maintaining an effective level of drug in the periodontal pocket for a period of 1 to 30 days.Other References
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