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Last Updated: October 21, 2019

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Details for Patent: 8,481,565

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Which drugs does patent 8,481,565 protect, and when does it expire?

Patent 8,481,565 protects ARICEPT and is included in one NDA.

This patent has thirty-six patent family members in fifteen countries.

Summary for Patent: 8,481,565
Title:Method for stabilizing anti-dementia drug
Abstract: The present invention provides a method for stabilizing an anti-dementia drug in a pharmaceutical composition containing the anti-dementia drug and a high molecular weight basic substance by adding a high molecular weight acidic substance to said pharmaceutical composition. Further, the present invention provides a pharmaceutical composition containing an anti-dementia drug and a high molecular basic substance in which a high molecular weight acidic substance is contained for stabilizing the anti-dementia drug. Furthermore, the present invention provides a method for manufacturing a pharmaceutical composition which comprises steps wherein a solution or suspension containing a high molecular weight acidic substance is added to a mixture of an anti-dementia drug and a high molecular weight basic substance for the sake of stabilizing the anti-dementia drug.
Inventor(s): Ueki; Yosuke (Kakamigahara, JP), Suzuki; Yasuyuki (Kakamigahara, JP), Fujioka; Satoshi (Kakamigahara, JP)
Assignee: Eisai R&D Management Co., Ltd. (Tokyo, JP)
Application Number:11/793,722
Patent Claim Types:
see list of patent claims
Composition;

Drugs Protected by US Patent 8,481,565

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Eisai Inc ARICEPT donepezil hydrochloride TABLET;ORAL 022568-001 Jul 23, 2010 AB RX Yes Yes   Start Trial   Start Trial Y   Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 8,481,565

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2004-376770Dec 27, 2004
Japan2005-041492Feb 18, 2005
PCT Information
PCT FiledDecember 27, 2005PCT Application Number:PCT/JP2005/024254
PCT Publication Date:July 06, 2006PCT Publication Number: WO2006/070930

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Serving leading biopharmaceutical companies globally:

McKinsey
Medtronic
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Colorcon

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