04871549 is referenced by 121 patents and cites 6 patents.

The invention relates to a Time-Controlled Explosion System in which drug release is caused by explosion of a membrane after a definite time period, said System comprising a preparation in the form of a bead or granule, said preparation comprising a core, a drug, swelling agent and an outer membrane of water-insoluble coating material.

Title
Time-controlled explosion systems and processes for preparing the same
Application Number
6/884071
Publication Number
4871549
Application Date
July 10, 1986
Publication Date
October 3, 1989
Inventor
Masateru Kodani
Ikeda
JP
Satoshi Ueda
Kawanishi
JP
Hisami Yamaguchi
Nishinomiya
JP
Takehisa Hata
Muko
JP
Yoshio Ueda
Kobe
JP
Agent
Oblon Spivak McClelland Maier & Neustadt
Assignee
Fujisawa Pharmaceutical
JP
IPC
A61K 9/46
A61K 9/16
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