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:
May. 07, 2002
Filed:
Sep. 21, 1999
Katsuya Matsuda, Tokyo, JP;
Ryuji Kubota, Tokyo, JP;
Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A tablet containing a phosphate-binding polymer, which has an average particle size of 400 &mgr;m or less, contains particles of 500 &mgr;m or less in particle size at a ratio of 90% or more and has a moisture content of 1 to 14%, together with crystalline cellulose and/or low substituted hydroxypropylcellulose, and a process for producing the same are disclosed. The phosphate-binding polymer tablet according to the present invention contains the active component at a high ratio, is excellent in the ability to bind to phosphate and is a quickly disintegrated in an acidic to a neutral region while being little affected by the stirring strength. Accordingly, it is an excellent preparation capable of regulating changes in bioavailability due to the gastrointestinal motions and pH value.