A SYSTEM FOR THE CONTROLLED RELEASE OF ACTIVE INGREDIENTS

Title:

A SYSTEM FOR THE CONTROLLED RELEASE OF ACTIVE INGREDIENTS

Document Type and Number:

WIPO Patent Application WO2003075894

Kind Code:

A8

Abstract:

A new release system is disclosed for releasing one or more active substances vehicularised in it, at a predetermined rate and duration. The system is constituted by a pharmaceutical tablet, coated with a film of polymeric material impermeable and insoluble in aqueous fluids; on the coating film, one or more apertures of geometrically precise size and shape are made, through the use of a laser beam of appropriate power and intensity, in a way such that the active ingredient contained in the therapeutic system is released only from the non coated portion of the tablet surface at the desired rate and time. The technology for manufacturing such system is also described.

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Inventors:

CONTE UBALDO (IT)
MAGGI LAURETTA (IT)

Application Number:

PCT/EP2003/002537

Publication Date:

December 11, 2003

Filing Date:

March 12, 2003

Export Citation:

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Assignee:

JAGOTEC AG (CH)
CONTE UBALDO (IT)
MAGGI LAURETTA (IT)

International Classes:

A61K9/20; A61K9/24; A61K9/22; A61K9/28; (IPC1-7): A61K9/22

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