ASYMMETRIC MEMBRANES FOR DRUG DELIVERY DEVICES
The present invention provides an osmotic dosage form comprising a core containing at least one pharmaceutically active ingredient and which also comprises at least one asymmetric membrane coating wherein said coating comprises one or more substantially water-insoluble polymers, and, one or more sol...
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | The present invention provides an osmotic dosage form comprising a core containing at least one pharmaceutically active ingredient and which also comprises at least one asymmetric membrane coating wherein said coating comprises one or more substantially water-insoluble polymers, and, one or more solid, water-soluble polymeric materials that do not generate significant amounts of hydrogen peroxide or formaldehyde in long term storage. |
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