Patents Examined by Michael C. Williamson
  • Composition for transdermal delivery of drugs
    Patent number: 6254883
    Abstract: A pharmaceutical composition for the controlled transdermal delivery of a drug containing a combination of a drug and an ion exchanger group to a carrier, and a pharmaceutically acceptable salt that is able to control the release of the drug from the ion exchanger, in which the carrier is a textile fiber. According to a preferred embodiment the drug is tacrine or its pharmaceutically acceptable salt.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: July 3, 2001
    Assignee: Novagent Oy
    Inventors: Risto Järnström, Jouni Hirvonen