Patent ID: 8158148

Claim:
A compressed, layered pharmaceutical tablet formed in a tablet die having an embossed bottom tablet punch and a top tablet punch, said tablet comprising one or more layers of a powder or granulation composition containing an effective amount of one or more active drugs, wherein said active drug-containing composition is filled into the tablet die wherein the embossed bottom tablet punch forms a divided active bottom layer or layers, said bottom layer or layers being tamped using the top tablet punch to provide first and second unitary segments each having a level top surface following said tamping; and one or more layers of a second powder or granulation composition containing either an undetectable amount of drug or a pharmacologically ineffective amount of drug, wherein said second composition is filled onto the level top surface of said first and second unitary segments in the tablet die, said second composition forming an undivided, non-unitary inactive top segment having a bottom and top surface, wherein only the bottom surface contacts said level top surfaces of said first and second unitary active segments, wherein the bottom active unitary segments and top inactive non-unitary segment are compressed to form a whole tablet, said tablet being divisible by breaking through the inactive non-unitary segment, without breaking of the first and second unitary segments, wherein the terms “bottom” and “top” refer to the orientation of the tablet in the tablet die during compression.