Patent ID: 11911513
Assignee: SHANGHAI WD PHARMACEUTICAL CO., LTD
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. A method for treating Parkinson's disease in a subject in need thereof, comprising administrating an extended release dosage form to the subject,
wherein the extended release dosage form has an absorption window at the upper gastrointestinal tract comprising an extended release platform and a retention enabling platform;
wherein the extended release platform is a pharmaceutical composition comprising a tablet core and a coating membrane, the tablet core comprises a drug-containing layer, and the coating membrane comprises cellulose acetate and copovidone, wherein the weight of the cellulose acetate is 50-70% of the weight of the coating membrane, the weight of the copovidone is 30-50% of the weight of the coating membrane; and
wherein the retention enabling platform is used for maintaining the extended release platform in the oral cavity, and at least one end of the retention enabling platform is connected with a cover, so that the extended release platform is retained in the retention enabling platform.