Iontophoretic systems, devices, and methods of delivery of active agents to biological interface
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United States of America Patent
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Dec 7, 2010
Grant Date -
Jan 31, 2008
app pub date -
Dec 29, 2006
filing date -
Dec 30, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A transdermal delivery device to passively deliver active agents to a biological interface includes an active agent reservoir comprising a first active agent of a first polarity; an outer active agent membrane taking the form of an ion-exchange membrane of a second polarity, an interfacial layer having a plurality of freely diffusible monovalent co-ions of the first polarity and having a first side adjacent to the outer active agent membrane and a second side configured to contact a biological interface.
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