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Generated: July 23, 2017
| Title: | Osmotic continuous dispensing oral delivery system containing a pharmaceutically acceptable active agent having a improved core membrane adhesion properties |
| Abstract: | An osmotic dispensing delivery system suitable for oral administration, containing a pharmaceutically acceptable active agent for the controlled continuous release of about 50 to about 90 percent by weight of said active agent into the gastrointestinal tract at a rate of about 5 to about 12 percent by weight of said agent per hour consisting essentially of: (a) a shaped solid core containing an osmotically active composition comprising an effective amount of a pharmaceutically acceptable active agent, alone or in combination with a pharmaceutically acceptable binder, an osmotically active driving agent, or tabletting lubricant, or mixtures thereof; (b) said core being substantially evenly coated with a discrete layer of a water-soluble, or water-dispersible, and water permeable substantially non-osmotically active solid polymeric binder, said binder layer being present in an amount between about 0.3 percent and about 10 percent of the weight of the core; (c) a semi-permeable shaped wall member impermeable to said active composition and permeable to gastrointestinal fluid, surrounding and adhesively bonded to the binding layer; and (d) at least one passageway in the wall, for dispensing the active agent, in communication with said core and the external environment. |
| Inventor(s): | Shah; Shailesh B. (Union, NJ), Koparkar; Arun D. (Westfield, NJ) |
| Assignee: | Ciba-Geigy Corporation (Ardsley, NY) |
| Application Number: | 07/185,564 |
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Patent Claim Types: see list of patent claims | Delivery; Composition; Dosage form; |
| Country | Document Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Germany | 58901373 | ► Subscribe | |||||||||||||||||||||||||||
| Denmark | 196189 | ► Subscribe | |||||||||||||||||||||||||||
| Denmark | 175232 | ► Subscribe | |||||||||||||||||||||||||||
| European Patent Office | 0339506 | ► Subscribe | |||||||||||||||||||||||||||
| Spain | 2031302 | ► Subscribe | |||||||||||||||||||||||||||
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
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