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. 25, 2014
Filed:
Jun. 15, 2009
Applicant:
Shirou Sawa, Hyogo, JP;
Inventor:
Shirou Sawa, Hyogo, JP;
Assignee:
Senju Pharmaceutical Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K 47/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
Addition of polyvinylpyrrolidone and a water-soluble anionic macromolecular compound to an aqueous suspension of a hardly soluble drug allows to provide an aqueous suspension in which aggregation of drug particles, formation of macro crystals from suspended particles and formation of secondary particles from deposited particles are prevented, and adhesion and adsorption to containers made of plastics, e.g., polypropylene or polyethylene, are avoided. As it has a good redispersibility, the aqueous suspension is useful as eye drops, nasal drops, ear drops, injections, oral preparations, liniments and lotions.