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Modified release dosage forms

  • US 20030232082A1
  • Filed: 03/21/2003
  • Published: 12/18/2003
  • Est. Priority Date: 09/28/2001
  • Status: Abandoned Application
First Claim
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1. A dosage form comprising:

  • (a) at least one active ingredient;

    (b) a core having an outer surface; and

    (c) a shell which resides upon at least a portion of the core outer surface, wherein at least a portion of the shell is semipermeable, at least about 30% of the cross-sectional area of the semipermeable shell portion is non-striated, and the shell comprises means for providing the active ingredient to a liquid medium outside the shell after contacting of the dosage form with the liquid medium.

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