Birch, Stewart, Kolasch & Birch, LLP
Sustained-release preparation utilizing thermal change and process for the production thereof
 A sustained-release preparation which can release a highly water-soluble medicinally active ingredient over a long time and a process for the production thereof are provided. The preparation has a sustained-releasing layer formed by heating and melting a layer composed of both an aqueous ethylcellulose latex containing a plasticizer and a wax to miscibilize them. 
Shionogi & Co., Ltd.
A
A61K
inventional
Toshiro Yusuke Satoshi Hiroshi Hitoshi
Fujii Suzuki Sakuma Tanaka Kadota