Pleasant-tasting aqueous liquid composition of a bitter-tasting drug
Patent 5763449 Issued on June 9, 1998. Estimated Expiration Date: 
August 7, 2016. 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.
August 7, 2016. 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 2909522 Sulfonamide compositions 18 -Glycyrrhizinic acid and salt thereof Acetaminophen or phenobarbital syrup composition Terfenadine oral powder Patent #: 5455049 InventorsAssigneeApplicationNo. 692081 filed on 08/07/1996US Classes:514/275, Nitrogen bonded directly to the 1,3-diazine at 2-position by a single bond514/179, Modified C-ring (except methyl in 13-position) (e.g., double bond containing, substituted, etc.)514/629, R is hydrogen or a lower saturated alkyl of less than seven carbons514/718Plural oxygensExaminersPrimary: Jarvis, William R. A.Attorney, Agent or FirmInternational ClassesA61K 031/505A61K 031/56 A61K 031/16 A61K 031/075 AbstractA liquid pharmaceutical composition is contemplated that comprises a pharmaceutically effective amount of a bitter tasting drug dissolved or dispersed in an aqueous medium that is free of ethanol. That aqueous medium consists essentially of water, about 5 to about 30 weight percent polyvinylpyrrolidone, about 45 to about 55 weight percent of a C3 -C6 polyol, about 0.01 to about 0.5 weight percent ammonium glycyrrhizinate and one or more flavorants. The liquid composition is transparent and has a pleasant taste.Other References
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