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:
Jan. 05, 1999
Filed:
Jan. 07, 1997
Applicant:
Inventors:
Assignees:
Senju Pharmaceutical Co., Ltd., Osaka, JP;
Yoshitomi Pharmaceutical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
514350 ; 514912 ; 514913 ; 514914 ; 514915 ;
Abstract
A method for stabilizing pranoprofen, comprising placing an aqueous solution of pranoprofen in coexistence with an antioxidant, or placing an aqueous solution of pranoprofen under the conditions of limited supply of oxygen, and a stable aqueous preparation of pranoprofen, comprising pranoprofen and an antioxidant. According to the present invention, the decomposition of pranoprofen in an aqueous solution of pranoprofen is remarkably suppressed. In particular, pranoprofen becomes stable to light, thus permitting long-term preservation of an aqueous solution, specifically a liquid preparation, of pranoprofen.