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:
Dec. 11, 2001
Filed:
Jun. 23, 2000
Noboru Yamashita, Shizuoka Ken, JP;
Akira Takagi, Shizuoka Ken, JP;
Masataka Katsuma, Shizuoka Ken, JP;
Katsumi Saito, Shizuoka Ken, JP;
Yuuki Takaishi, Shizuoka Ken, JP;
Tatsuo Yasuda, Shizuoka Ken, JP;
Yutaka Takahashi, Shizuoka Ken, JP;
Mitsuo Mitomi, Shizuoka Ken, JP;
Yamanouchi Pharmaceuticals, Co. Ltd., Tokyo, JP;
Abstract
The present invention relates to sustained-release pharmaceutical compositions for ionic pharmaceutically active substances (excluding ionic prostanoic acid derivatives) containing ionic compounds having opposite charges to those of the active substances and increasing hydrophobicity of the active substances. More specifically, the invention relates to sustained-release pharmaceutical compositions comprising the ionic pharmaceutically active substances and the ionic compounds having opposite charges to those of the active substances and increasing hydrophobicity of the active substances that contain hydrophobic groups in the molecule thereof. The pharmaceutical composition of the invention can exhibit excellent sustained release effect of the active substance, irrespective of water solubility possessed by the ionic pharmaceutically active substances.