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:
Feb. 05, 1991
Filed:
Aug. 02, 1989
Sumitomo Pharmaceuticals Company, Limited, Osaka, JP;
Abstract
Injections containing anhydrous sodium indomethacin and methods for producing injections containing an hydrous sodium indomethacin which comprise converting a solution of indomethacin to a solution of sodium indomethacin by adding dropwise an aqueous solution of a carbonate of sodium, followed by freeze-drying and heating. The injections of the present invention are practically useful indomethacin injections in which sodium indomethacin anhydride has high safety and chemically high purity and stability, and the lyophilized pharmaceutical preparations are excellent also in that redissolution thereof is facilitated. By the methods for the production of the present invention, it is possible to produce said anhydrous sodium indomethacin efficiently.