Composition providing selective release of an active ingredient
April 22, 2017. 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 ReferencesTransporting arrangement for transporting motor vehicles Dosage form Pulsatile drug delivery system PH-triggered osmotic bursting delivery devices Programmed release oral solid pharmaceutical dosage form Colonic drug delivery system Controlled release formulation for water soluble drugs in which a passageway is formed in situ Expandable pharmaceutical forms Dual control sustained release drug delivery systems and methods for preparing same Controlled release formulation for water insoluble drugs in which a passageway is formed in situ Patent #: 5736159 InventorsAssigneeApplicationNo. 776797 filed on 04/22/1997US Classes:424/473, With porous, perforated, apertured, or sieved layer (e.g., dialyzing layer, microporous layer, etc.)424/472, Layered unitary dosage forms424/489Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)ExaminersPrimary: Page, Thurman K.Assistant: Shelborne, Kathryne E. Attorney, Agent or FirmInternational ClassA61K 009/22Foreign Application Priority Data1994-08-11 FRAbstractA composition that ensures selective release of an active ingredient at a given site, and in particular, a pharmaceutical composition enabling selective release of an active ingredient to be obtained at a target organ. The composition is intended for oral administration, providing selective release of its active ingredient in the colon. | |
