Bioadhesive polyethylene glycol ointment for medicaments
Patent 5714165 Issued on February 3, 1998. Estimated Expiration Date: 
February 3, 2015. 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.
February 3, 2015. 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 Re33093 Topical treatment of aphthous stomatitis Anticalculus oral composition Buccal drug dosage form Adhesive medical tapes for oral mucosa Gel bases for pharmaceutical compositions Adhesive composition Muco-bioadhesive composition Patent #: 4948580 InventorsAssigneeApplicationNo. 861558 filed on 04/01/1992US Classes:424/486, Synthetic polymer514/928, Topical514/944, GEL514/969OINTMENT OR SALVE BASEExaminersPrimary: Webman, Edward J.Attorney, Agent or FirmForeign Patent References
International ClassesA61K 009/06A61K 047/32 A61K 047/34 A61K 009/10 AbstractA therapeutic composition having wet adherent properties and particularly useful for delivery of medicaments to mucosal surfaces comprises a therapeutically effective amount of a medicament dispersed in a base material comprising from about 3 to 15% by weight of a water soluble salt of a copolymer of methyl vinyl ether and maleic acid or anhydride and from about 85 to 97% by weight of polyethylene glycol. Formulations of the base material with triamcinolone acetonide and lidocaine are particularly efficacious in the treatment of recurrent aphthous ulcers.Other References
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