Pharmaceutical tablet capable of releasing the active...

Details Pharmaceutical tablet capable of releasing the active... Pharmaceutical tablet capable of releasing the active...

A - Human Necessities

61

K

A61K 9/24 (2006.01) A61K 9/20 (2006.01)

Patent

CA 2124553

A pharmaceutical tablet capable of releasing the active ingredients contained therein at subsequent times produced via the steps of: a) preparing a tablet consisting of three superposed layers, the upper layer containing an active ingredient, the intermediate layer not containing any active ingredient and forming a barrier-type layer, and the lower layer containing an active ingredient, said upper layer presenting a raised top, b) coating the tablet entirely with an impermeable polymeric film, and c) removing said raised top and thus allowing contact of the abraded upper layer surface with the environment.

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