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. 16, 2014
Filed:
Feb. 10, 2011
Noriyuki Hirasawa, Toshima-ku, JP;
Nobuyoshi Kamikido, Toshima-ku, JP;
Akihiko Tasaki, Toshima-ku, JP;
Shusei Ito, Toshima-ku, JP;
Noriyuki Hirasawa, Toshima-ku, JP;
Nobuyoshi Kamikido, Toshima-ku, JP;
Akihiko Tasaki, Toshima-ku, JP;
Shusei Ito, Toshima-ku, JP;
Taisho Pharmaceutical Co., Ltd, Tokyo, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Abstract
Disclosed is a sustained release preparation which releases a poorly soluble medicinal agent in a pH-independent manner. Also disclosed is a sustained release preparation which is capable of controlling the Cof a medicinal agent to an adequate amount and is thus capable of maintaining the level of the medicinal agent in the blood to a level at which medicinal effects can be expected for a long period of time. Specifically disclosed is a sustained release preparation which is characterized by containing a pharmaceutically acceptable salt of 4-bromo-6-[3-(4-chlorophenyl)propoxy]-5-(3-pyridylmethylamino)-3(2H)-pyridazinone, and hypromellose. An organic acid is blended in the sustained release preparation in an amount of less than 1% by mass.