Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills
Reexamination Certificate
2005-03-01
2005-03-01
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Tablets, lozenges, or pills
C424S400000, C424S464000, C424S465000, C424S466000, C424S468000, C424S469000
Reexamination Certificate
active
06861072
ABSTRACT:
The invention concerns a pharmaceutical composition with gastric residence and controlled release, characterized in that it comprises two or three layers and contains (a) an active principle associated with a excipient modifying its release; (b) a system generating carbon dioxide in a swelling polymer hydrophilic matrix; (a) and (b) capable of being included in a common layer or in separate layers.
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Derwent Patent Abstract No. 199849.
Alaux Gérard
Andre Frederic
Cuine Alain
Lewis Gareth
Alexander Michael D.
Dupont Paul E.
Oh Simon J.
Page Thurman K.
Sanofi-Synthelabo
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