The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2013
Filed:
Feb. 25, 2010
Yosuke Ueki, Gifu, JP;
Yasuyuki Suzuki, Gifu, JP;
Satoshi Fujioka, Gifu, JP;
EISAI R & D Management Co., Ltd., Tokyo, JP;
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.