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Electrochemical controlled release drug delivery system

  • US 4,585,652 A
  • Filed: 11/19/1984
  • Issued: 04/29/1986
  • Est. Priority Date: 11/19/1984
  • Status: Expired due to Fees
First Claim
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1. A method for the controlled delivery of an ionic bioactive chemical into a physiological medium comprising:

  • (a) ionically binding said chemical to a polymeric body comprising oppositely-charged redox sites;

    (b) contacting said polymeric body with said physiological medium; and

    (c) releasing said bound chemical into said medium as an ionic species by neutralizing the charge on the polymeric body.

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