An oral dosage form which includes a bi-layer tablet consisting of an Actives Granulation layer and an Osmagen Granulation layer is disclosed. An encapsulant is disposed over that bi-layer tablet. The encapsulated bi-layer tablet includes an orally therapeutically effective dose of oxycodone in combination with dextromethorphan, where the weight ratio of oxycodone to dextromethorphan is 1:5. The oral dosage form does not include an opioid antagonist.