Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form
Reexamination Certificate
2008-03-04
2008-03-04
Woodward, Michael P. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
C514S772000, C514S772100
Reexamination Certificate
active
10609061
ABSTRACT:
The present invention includes an expandable osmotic layer and a coating suspension for providing an expandable osmotic layer, both of which are useful for the manufacture of controlled release dosage forms. The expandable osmotic layer of the present invention may be produced using the coating suspension of the present invention. Advantageously, the coating suspension of the present invention can be used to coat expandable osmotic layers under both wet and dry process conditions without sacrificing the quality of the expandable osmotic layers produced, and therefore provides a relatively robust coating suspension that facilitates commercial production of controlled release dosage forms including a coated expandable osmotic layer.
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“NATROSOL” disclosure, downloaded from the world wide web on Nov. 27, 2006.
Dong Liang-Chang
Li Shaoling
Shivanand Padmaja
Wong Patrick S.-L.
ALZA Corporation
Nwaneri Angela N.
Silverman Eric E.
Woodward Michael P.
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