Controlled release tablet

Details Controlled release tablet Controlled release tablet

A - Human Necessities

61

K

167/165

A61K 9/22 (2006.01) A61J 3/10 (2006.01) A61K 9/20 (2006.01) A61K 9/44 (2006.01)

Patent

CA 1314216

ABSTRACT OF THE DISCLOSURE The disclosure herein describes a controlled release tablet which includes a core formed of a solid mixture having a hydrophilic releasable agent; the core has a central hole and is coated, on all faces except that boundering the hole with a hydrophobic material. The thickness of the core gradually increases from the hole to the outer border, this being a factor in the rate of release of the mixture through the hole. One application of such a tablet is for the controlled release of a therapeutic agent in the field of drug delivery systems.

544128

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