Patent ID: 7404970

Claim:
An oral dosage form, comprising: a bi-layer tablet consisting of a first layer having a first surface and an opposing second surface and a second layer having a first surface and an opposing second surface, wherein said second surface of said first layer physically contacts said first surface of said second layer; an encapsulant disposed over said bi-layer tablet; wherein said first layer comprises an orally therapeutically effective dose of oxycodone HC1 in combination with dextromethorphan HBr, wherein the ratio of oxycodone HC1 to dextromethorphan HBr is 1:5 by weight; wherein said second layer comprises carboxy methyl cellulose, sodium chloride, and iron oxide; wherein said oral dosage form is formed to include an aperture extending through said encapsulant and into said first layer; and wherein said oral dosage form does not include an opioid antagonist.