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Diffusion-controlled dosage form and method of fabrication including three dimensional printing

  • US 20040005360A1
  • Filed: 05/06/2003
  • Published: 01/08/2004
  • Est. Priority Date: 05/06/2002
  • Status: Active Grant
First Claim
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1. A dosage form having at least one unit, the unit further comprises:

  • a core comprising at least one Active Pharmaceutical Ingredient; and

    a shell that surrounds the core, the shell further including a release-blocking polymer that is substantially insoluble in water but is soluble at room temperature in a solvent other than water, and a release-regulating polymer.

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