Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...
Reexamination Certificate
2011-08-09
2011-08-09
Hartley, Michael G (Department: 1618)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Web, sheet or filament bases; compositions of bandages; or...
C424S448000, C424S078160
Reexamination Certificate
active
07993671
ABSTRACT:
A transdermal composition is disclosed which contains a blend of one or more polymers, one or more drugs, at least one of which has a low molecular weight and is liquid at or about room temperatures. The composition is substantially free of water and liquids which have a normal boiling point (a) optionally below processing temperatures and (b) greater than or equal to the temperature of the low molecular weight drugs. The composition does not suffer from the substantial loss of the lower molecular weight drug during production of the transdermal system. A transdermal composition is also disclosed which has one or more drugs, at least one of which has a low molecular weight and is liquid at or about room temperatures, and a polymer matrix including one or more high shear resistant polymers. The high shear resistant polymer(s) reduce the plasticizing effect of the low molecular weight drug, and has sufficient tack and shear for application to a human being.
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Houze David
Mantelle Juan
Ebrahim Nabila
Foley & Lardner LLP
Hartley Michael G
Noven Pharmaceuticals Inc.,
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