Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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LTS Lohmann Therapie Systeme AG
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Individual
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Publication date
Priority claimed from DE4416926Aexternal-prioritypatent/DE4416926C2/en
Application filed by IndividualfiledCriticalIndividual
Publication of CA2489809A1publicationCriticalpatent/CA2489809A1/en
Application grantedgrantedCritical
Publication of CA2489809CpublicationCriticalpatent/CA2489809C/en
A process for the production of devices for the controlled release of active substances, consisting of an active substance-containing matrix and an erodible mass of solids at least partially covering the matrix, with the thickness of the erodible mass across its extension being determined by thickness gradients, and the active substance-containing matrix itself being produced with thickness gradients which determine the thickness gradients of the erodible mass, is characterized in that in a first step the active substance-containing matrix is formed in the form of pressed articles having thickness gradients, and in a second step it is transferred onto a laminated tablet-compressing machine where it is compressed with the erodible mass.
CA002489809A1994-05-131995-05-08Active substance controlled release devices and process for producing the same
Expired - Fee RelatedCA2489809C
(en)
Composition consisting of a dendrimer and an active substance occluded in the dendrimer, a process for the preparation of such a composition and a process for releasing the active substance