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Patent: 5,422,123

Summary for Patent: 5,422,123

Title: Tablets with controlled-rate release of active substances
Abstract:Tablets with zero order controlled-rate of release of the active substances, consisting of a core of defined geometrical form containing the active substance, polymer substances which swell on contact with aqueous liquids and polymer substances with gelling properties, and a support applied to said core to partly cover its surface, the support consisting of polymer substances which are slowly soluble and/or slowly gellable in aqueous liquids, plasticizing substances, and possibly substances with an adjuvant function.
Inventor(s): Conte; Ubaldo (Busto Arsizio, IT), La Manna; Aldo (Pavia, IT), Colombo; Paolo (Pavia, IT)
Assignee: Jagotec AG (Hergiswil, CH)
Application Number:08/123,982
Patent Claim Types:
see list of patent claims
Composition; Process; Dosage form;
Patent PDF download available with subscription

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Foreign Priority and PCT Information for Patent: 5,422,123

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Italy22694/89Dec 14, 1989

International Patent Family for Patent: 5,422,123

Country Document Number Publication Date
Austria135906Apr 15, 1996
Canada2031393Jun 15, 1991
Germany69026215May 02, 1996
Denmark0432607Apr 29, 1996
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