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Coating technique for deposition of drug substance on a substrate

  • US 20030203027A1
  • Filed: 04/26/2002
  • Published: 10/30/2003
  • Est. Priority Date: 04/26/2002
  • Status: Abandoned Application
First Claim
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1. A multi-layered oral dosage form for pharmaceutically active substances, comprising a central core having a volume;

  • a middle layer surrounding said core; and

    an outer shell, at least one of said central core, said middle layer and said outer shell includes at least one pharmaceutically active substance, wherein the volume of said central core is selected to obtain a desired volume of said middle layer within a predetermined dimension of said outer shell.

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