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:
Aug. 09, 2016
Filed:
Apr. 04, 2014
Applicant:
Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory, Donglu, Xinchang County, CN;
Inventors:
Deping Yi, Huancheng Donglu, CN;
Zhike Tian, Huancheng Donglu, CN;
Weidong Ye, Huancheng Donglu, CN;
Assignee:
Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory, Huancheng Donglu, CN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/522 (2006.01); A61K 9/20 (2006.01); A61K 9/48 (2006.01); C07D 473/18 (2006.01);
U.S. Cl.
CPC ...
A61K 31/522 (2013.01); A61K 9/2027 (2013.01); A61K 9/2054 (2013.01); A61K 9/4866 (2013.01); C07D 473/18 (2013.01);
Abstract
The present invention relates to a pharmaceutical composition for treating hepatitis B virus infection comprising crystalline entecavir as the pharmaceutically active ingredient and one or more pharmaceutically acceptable excipients. The tablet and capsule of the pharmaceutical composition have improved stability compared to that of amorphous entecavir under the conditions of light, high temperature and high humidity.