Pharmaceutical tablets releasing the active substance after...

Details Pharmaceutical tablets releasing the active substance after... Pharmaceutical tablets releasing the active substance after...

A - Human Necessities

61

K

A61K 9/34 (2006.01) A61K 9/22 (2006.01) A61K 9/32 (2006.01)

Patent

CA 2124425

Pharmaceutical tablets releasing the active substance after a definite period of time, consisting of: - a core containing the active substance and polymeric substances which swell and/or gel and /or erode on contact with water or with aqueous liquids; - a layer applied externally to said core, suitable to prevent the immediate release of the active substance contained in the core and to allow the release of said active substance after a definite period of time, consisting of natural and/or synthetic polymeric materials of the class of the hydrophilic polymers which erode and/or gel and/or dissolve in an aqueous medium; - a possible gastroresistant and enterosoluble coating.

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