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Crystallized carbohydrate matrix for biologically active substances, a process of preparing said matrix, and the use thereof

  • US 4,713,249 A
  • Filed: 10/22/1985
  • Issued: 12/15/1987
  • Est. Priority Date: 11/12/1981
  • Status: Expired due to Fees
First Claim
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1. A composition useful for the prolonged release of a biologically-active substance comprising a sphere or particle comprising a non-covalently cross-linked crystalline polymeric carbohydrate matrix, said matrix incorporating 0.001-50% by weight of an absorbed or covalently bonded biologically-active substance.

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