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:
Apr. 16, 1991
Filed:
Feb. 14, 1990
Applicant:
Inventors:
John G Edwards, Cleburne, TX (US);
Wesley W Han, Fort Worth, TX (US);
Yusuf Ali, Fort Worth, TX (US);
Assignee:
Alcon Laboratories, Inc., Fort Worth, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
514155 ; 514275 ;
Abstract
A method of preparing aqueous pharmaceutical compositions containing a synergistic combination of trimethoprim and sodium sulfacetamide is described. The method results in a significant improvement in the aqueous solubility of trimethoprim due to a favorable interaction between the trimethoprim and sodium sulfacetamide which is dependent on a mildly acidic pH.