➤ Get the DrugPatentWatch Daily Briefing

Get Daily Updates on Generic Entry, Litigation, Biosimilars, and more …

Serving leading biopharmaceutical companies globally:

Harvard Business School

Last Updated: September 25, 2021

DrugPatentWatch Database Preview

Details for Patent: 8,481,565

Email this page to a colleague

« Back to Dashboard

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

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 ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
>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

International Family Members for US Patent 8,481,565

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2005320547 ⤷  Try it Free
Australia 2005320609 ⤷  Try it Free
Brazil PI0518396 ⤷  Try it Free
Brazil PI0519407 ⤷  Try it Free
Canada 2592102 ⤷  Try it Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

Make Better Decisions: Try a trial or see plans & pricing

Serving leading biopharmaceutical companies globally:

Johnson and Johnson
Harvard Business School
Boehringer Ingelheim

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.