Mcneil-ppc, Inc.

Indukumar G Shah

David W Wynn

Satish Kamath

Daniel McTeigue

Michael Nichols

Karen Swider

Dinesh Patel

In one aspect, the present invention features a tablet including: (i) a first drug layer including naproxen; (ii) a second drug layer including a decongestant (e.g., pseudoephedrine) wherein said second drug layer is a sustained release layer adapted to deliver a therapeutically effective amount of pseudoephedrine for a period of at least twelve hours; and (iii) a barrier layer that does not include naproxen, wherein the barrier layer is in contact with the first drug layer; and (iv) a third drug layer including cetirizine, wherein the third drug layer is in contact with the barrier layer and is not in contact with the first drug layer.

Tablet containing cetirizine, pseudoephedrine, and naproxen containing a barrier layer

In one aspect, the present invention features a tablet including a first drug layer, a second drug layer, and a third drug layer, wherein (i) the first drug layer includes naproxen; (ii) a second drug layer including pseudoephedrine; and (iii) the third drug layer includes cetirizine; wherein the first drug layer is in contact with the second drug layer, the third drug layer is in contact with the second drug layer, and the first drug layer is not in contact with the third drug layer, and wherein the second drug layer is a sustained release layer adapted to deliver a therapeutically effective amount of pseudoephedrine for a period of at least twelve hours.

Three layer tablet containing cetirizine, pseudoephedrine, and naproxen

The present invention provides a core of predominately microcrystalline cellulose, on which an active drug is layered onto the core via solution coating. The coated particles have a narrower particle size distribution than coated granules provided by other processes. An optional final coating of a pharmaceutically acceptable polymeric coating is provided to provide tastemaking or controlled release, and protection of the drug-layered particles.

Microcrystalline cellulose particles having active core

Preparation of pharmaceutically active particles

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North Wales, PA, United States of America

Indukumar G Shah