Transdermal drug delivery device
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United States of America Patent
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-
Apr 17, 1990
Issued Date -
N/A
app pub date -
Jul 14, 1988
filing date -
Nov 2, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A diffusional drug delivery device is described which can provide shelf life stability of the system components, elimination of the initial burst of drug and hence irritation, delayed onset of therapeutic effect and delivery of a therapeutic agent at an optimum rate. A metal layer and an activating means are inert when dry. Moisture activates the system whereby the activating means provides release of an eroding agent which erodes the metal layer through which the therapeutic agent diffuses and is subsequently delivered.
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