Spherical granules having core and their production
Patent 5026560 Issued on June 25, 1991. Estimated Expiration Date: 
June 25, 2008. 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.
June 25, 2008. 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 3477864 Sustained release therapeutic compositions Controlled release dosage forms comprising hydroxypropylmethylcellulose Composition for long acting nicardipine preparation and process of producing the composition Pharmaceutical preparation for oral use Patent #: 4786505 InventorsAssigneeApplicationNo. 143957 filed on 01/14/1988US Classes:424/494, Cellulose derivatives424/458, Containing discrete coated particles pellets, granules, or beads424/461, Containing polysaccharide (e.g., cellulose sugars, etc.)424/468, Sustained or differential release type424/479, Containing polysaccharide (e.g., sugar, etc.)424/480, Cellulose or derivative424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/490, Coated (e.g., microcapsules)424/493, Containing polysaccharides (e.g., sugars)424/497, Containing solid synthetic polymers514/925ULCER TREATMENTExaminersPrimary: Page, Thurman K.Assistant: Spear, James M. Attorney, Agent or FirmForeign Patent References
International ClassesA61K 009/16A61K 009/36 A61K 009/62 Foreign Application Priority Data1987-01-29 JPAbstractThe spherical granules having a core coated with spraying powder containing a drug and low substituted hydroxypropylcellulose, because of their excellent hardness, can be coated further evenly, (e.g. sustained release coating, gastric coating, enteric coating), and at the time the granules are excellent in disintegration.Other References
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