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Last Updated: December 16, 2025

Claims for Patent: 5,656,286

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Summary for Patent: 5,656,286

Title:	Solubility parameter based drug delivery system and method for altering drug saturation concentration
Abstract:	A blend of at least two polymers, or at least one polymer and a soluble polyvinylpyrrolidone, in combination with a drug provides a pressure-sensitive adhesive composition for a transdermal drug delivery system in which the drug is delivered from the pressure-sensitive adhesive composition and through dermis when the pressure-sensitive adhesive composition is in contact with human skin. According to the invention, soluble polyvinylpyrrolidone can be used to prevent crystallization of the drug, without affecting the rate of drug delivery from the pressure-sensitive adhesive composition.
Inventor(s):	Jesus Miranda, Steven Sablotsky
Assignee:	Noven Pharmaceuticals Inc
Application Number:	US08/178,558
Patent Claims:

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