Topical drug preparations

  • US 6,387,407 B1
  • Filed: 03/30/1999
  • Issued: 05/14/2002
  • Est. Priority Date: 09/29/1995
  • Status: Expired due to Term
First Claim
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1. A process for the use of a composition as a medical device, for drug delivery, the application of a diagnostic agent, or the prevention of post operative adhesions, said process comprises topically administering to a mammal an aqueous based gelled composition containing a polymer matrix composed of a negatively charged polymer material blended with a nonionic polymer;

  • wherein the negatively charged polymer material is hyaluronate sodium salt; and

    wherein the hyaluronate sodium salt has a weight average molecular weight from about 650,000 to about 800,000, a sulphated ash content below about 15%, a protein content below about 5% and purity of at least 98%.

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