Liquid prolonged release pharmaceutical formulations containing ionic constituents
Patent 4762709 Issued on August 9, 1988. Estimated Expiration Date: 
January 31, 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.
January 31, 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 2990332 3035979 3035984 3051623 3096241 3138525 3143465 3499960 3594470 Prolonged release pharmaceutical preparations Patent #: 4221778 InventorAssigneeApplicationNo. 06/825681 filed on 01/31/1986US Classes:424/78.11, Plural ion exchange resins424/479, Containing polysaccharide (e.g., sugar, etc.)424/483, Ion-exchange resins514/282, One of the five cyclos is five-membered and includes ring chalcogen (e.g., codeine, morphine, etc.)514/357, Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding514/653Hydroxy, bonded directly to carbon, attached directly or indirectly to the acyclic carbon or chain by acyclic nonionic bonding (e.g., beta hydroxy phenethylamines, etc.)ExaminersPrimary: Schenkman, LeonardInternational ClassesA61K 9/00 (20060101)A61K 9/50 (20060101) A61K 47/48 (20060101) AbstractA formulation of a drug wherein the drug is present as a coated, drug-resin complex suspended in a liquid carrier which carrier also contains a second ionic component bearing the same charge as the coated complexed drug, the second ionic component being present as an uncoated, insoluble drug-resin complex.Other References
| |
