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Taste masking of highly water-soluble drugs

  • US 20030096791A1
  • Filed: 05/30/2002
  • Published: 05/22/2003
  • Est. Priority Date: 05/31/2001
  • Status: Abandoned Application
First Claim
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1. A taste-masked formulation comprising:

  • taste-masked particles including (1) at least one active ingredient and (2) a taste-masking layer surrounding said at least one active ingredient, said taste-masking layer including from about 2% to about 20% of a water-soluble polymer and from about 80% to about 98% of a water-insoluble polymer, said water-insoluble polymer being selected from the group consisting of ethyl cellulose, cellulose acetate phthalate, hydroxypropyl methyl cellulose phthalate, polyvinyl acetate phthalate, hydroxypropyl methyl cellulose succinate, and shellac, and wherein said taste-masking layer has a coating thickness from about 2% to about 100% by weight, based on the weight of said taste-masked particles, wherein said taste-masked formulation releases less than about 20% of the at least one active ingredient in an aqueous solution at a basic pH in about 3 minutes and releases at least about 65% of said at least one active ingredient at an acidic pH in about 30 minutes.

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