Transdermal administration of fentanyl and device therefor
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United States of America Patent
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May 13, 1986
Grant Date -
N/A
app pub date -
Jul 23, 1984
filing date -
Jul 23, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Transdermal delivery systems for delivery of fentanyl and its analgetically effective derivatives for extended periods of time are disclosed which deliver the base form of the drug at a rate of from 0.5 to 10 .mu.g/cm.sup.2 /hr for a substantial portion of their useful life. The systems can be from 5-100 cm.sup.2 in releasing surface and preferably employ an in-line amine resistant adhesive. Preferred rate controlled systems utilize an aqueous ethanolic gel to minimize drug content.
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