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:
Sep. 10, 2013
Filed:
Jun. 29, 2009
Toshihiro Yanagi, Osaka, JP;
Yoshitaka Iwakura, Osaka, JP;
Hisaya Sangawa, Osaka, JP;
Yasufumi Okamura, Osaka, JP;
Toshihiro Yanagi, Osaka, JP;
Yoshitaka Iwakura, Osaka, JP;
Hisaya Sangawa, Osaka, JP;
Yasufumi Okamura, Osaka, JP;
Sawai Pharmaceutical Co., Ltd., Osaka, JP;
Abstract
The present invention provides a method for producing spherical fine particles containing tamsulosin hydrochloride, the method includes the steps of: (1) mixing and stirring tamsulosin hydrochloride (a), microcrystalline cellulose (b), and water until a mixture of the component (a) and the component (b) is uniformly impregnated with the water; (2) granulating the mixture obtained in step (1) using an stirring granulator whose peripheral speed is set to be 5.5 to 9.0 m/s; and (3) drying the granules obtained in step (2). The present invention also provides spherical fine particles obtained according to the method, coated fine particles obtained by applying a coating to the spherical fine particles, and an orally disintegrating tablet containing the coated fine particles.