Patent ID: 11951111
Assignee: ALKERMES PHARMA IRELAND LIMITED
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 11:
12. A method of treating schizophrenia or bipolar I disorder in a patient in need thereof, the method comprising orally administering to the patient, once daily, a pharmaceutically acceptable coated immediate release bilayer tablet for orally delivering olanzapine and 10 mg of samidorphan as a fixed dose, comprising:
a first tablet layer comprising:
10 mg samidorphan or a pharmaceutically acceptable salt of samidorphan in an amount to deliver 10 mg samidorphan;
about 35-43 wt % microcrystalline cellulose, based on the weight of the first tablet layer; and
about 37-43 wt % lactose or a hydrate thereof, based on the weight of the first tablet layer;

a second tablet layer comprising:
a dose of olanzapine selected from the group consisting of 5 mg, 10 mg, 15 mg and 20 mg of the olanzapine;
about 38-42 wt % microcrystalline cellulose, based on the weight of the second tablet layer;
about 46-49 wt % lactose or a hydrate thereof, based on the weight of the second tablet layer;

and
a film coating over the first and second tablet layer; wherein the bi-layer tablet releases at least 85% of olazanpine and at least 85% of the samidorphan after 15 minutes when the bi-layer tablet is tested in 500 mL USP acetate buffer at pH 4.5 using a USP Apparatus II (Paddle Method) at 37° C., with a paddle speed of 75 rpm and using a three-prong sinker.