Controlled release bead, method for its production, multiple unit formulation comprising thereof and its use

A controlled release bead comprises: (i) a core unit of a substantially water-soluble or water-swellable inert material; (ii) a first layer on the core unit of a substantially water-insoluble polymer; (iii) a second layer covering the first layer and containing an active ingredient; and (iv) a third...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RINGBERG ANDERS, GREN TORKEL, WALD RANDY J, WIKBERG MARTIN
Format: Patent
Sprache:eng ; slo
Schlagworte:
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