Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2011-04-19
2011-04-19
Hartley, Michael G (Department: 1618)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S489000, C424S490000, C424S493000, C424S498000, C424S502000
Reexamination Certificate
active
07927628
ABSTRACT:
The present invention provides sustained-release preparations from which a pharmacologically active substance can be released over a long time and a process for producing the same. Such a sustained-release preparation is produced by melt-granulating a low-melting-point substance and a pharmacologically active substance and melt-coating the surface of the thus obtained particles with (1) a fine powder of a water-insoluble polymer or (2) a fine powder of a water-insoluble polymer and at least one member selected from the group consisting of talc, magnesium stearate and titanium oxide.
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Supplementary European Search Report for EPA No. 03742668.1 dated May 13, 2009.
Hartley Michael G
Otsuka Pharmaceutical Co. Ltd.
Sughrue & Mion, PLLC
Young Micah-Paul
LandOfFree
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