Bismuth-containing pharmaceutical compositions
Patent 4940695 Issued on July 10, 1990. Estimated Expiration Date: 
December 10, 2007. 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.
December 10, 2007. 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 ReferencesProcesses for making colored pharmaceutical compositions Patent #: 4801454 InventorsAssigneeApplicationNo. 130760 filed on 12/10/1987US Classes:514/57, Cellulose or derivative514/159, Ortho-hydroxybenzoic acid (i.e., salicyclic acid) or derivative DOAI514/503, Antimony or bismuth514/925ULCER TREATMENTExaminersPrimary: Griffin, Ronald W.Assistant: White, Everett Attorney, Agent or FirmForeign Patent References
International ClassesA61K 031/715A61K 031/60 A61K 031/29 AbstractPharmaceutical compositions suitable for oral administration comprising: (a) pharmaceutically-acceptable bismuth-containing agents such as bismuth subsalicylate; (b) pharmaceutically-acceptable non-ionic cellulose ether polymers such as methylcellulose; and (c) magnesium aluminum silicate. The ratio of bismuth to non-ionic cellulose ether polymer is greater than about 1.5:1. Compositions in the form of liquids containing water are preferred.This invention also relates to methods for treating or preventing disturbances of the gastrointestinal tract in humans or lower animals by orally administering a composition of the present invention.Other References
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