Inhibition of crystallization in transdermal devices
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United States of America Patent
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Oct 15, 2002
Grant Date -
N/A
app pub date -
May 17, 2000
filing date -
Sep 25, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A steroid is used as an additive in manufacture of a transdermal drug delivery device, to act as a crystallization inhibitor inhibiting crystallization, during storage of the device, of an active drug in the form of a hormone which has a pharmaceutical or physiological effect in use of the device. The crystallization-inhibiting steroid is present in the device in an amount insufficient to provide significant pharmaceutical or physiological effect in use of the device.
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