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Title:
LIMITED-TIME RELEASE PREPARATION
Document Type and Number:
Japanese Patent JP2009191034
Kind Code:
A
Abstract:

To provide a limited-time release preparation capable of freely adjusting a time for starting the release of the drug from the preparation and the releasing rate of the drug after starting the release of the drug.

This limited-time release preparation is characterized by covering a central core containing the drug and a water swellable substance with a film containing 1 kind or 2 kinds of water insoluble polymers.


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Inventors:
KANBE HIDEYOSHI
Application Number:
JP2008035055A
Publication Date:
August 27, 2009
Filing Date:
February 15, 2008
Export Citation:
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Assignee:
SS PHARMACEUTICAL CO
International Classes:
A61K9/32; A61K9/16; A61K9/36; A61K47/32; A61K47/38; A61K31/522
Domestic Patent References:
JP2000128779A2000-05-09
JPH09208458A1997-08-12
JPH07188057A1995-07-25
Foreign References:
WO2005092336A12005-10-06
WO2002066004A12002-08-29
Attorney, Agent or Firm:
Alga Patent Office, a patent business corporation
Miyuki Ariga
Toshio Takano
Toshio Nakajima
Masaki Murata
Hiroto Yamamoto



 
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