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Compressed composite delivery system for release-rate modulation of bioactives

  • US 20060024368A1
  • Filed: 07/30/2004
  • Published: 02/02/2006
  • Est. Priority Date: 07/30/2004
  • Status: Abandoned Application
First Claim
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1. A delivery system comprising a central core, a first outer zone, and a second outer zone in which:

  • the central core comprises one or more biologically active ingredients, the first outer zone partially surrounds the core, the second outer zone partially surrounds the core, at least one of the first outer zone and the second outer zone comprises one or more biologically active ingredients, which one or more biologically active ingredients are the same as or different than the one or more biologically active ingredients in the core, the first outer zone and the second outer zone are heterogeneous with respect to each other, the first outer zone and the second outer zone together form a continuous layer completely enclosing the core, the first outer zone comprises a barrier suitable for timed release of biologically active ingredients, the second outer zone comprises a barrier suitable for timed release of biologically active ingredients, and the core, the first outer zone, and the second outer zone together comprise a biologically effective dosage amount of each of the one or more biologically active ingredients.

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