Patch and production method thereof

Details Patch and production method thereof Patch and production method thereof

2011-06-21

2011-06-21

Wax, Robert A (Department: 1615)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Web, sheet or filament bases; compositions of bandages; or...

Reexamination Certificate

active

07964213

ABSTRACT:
The present invention relates to a patch containing a substrate, a non-crosslinked adhesive layer (A) containing a drug laminated on one surface of the substrate and a crosslinked adhesive layer (B) laminated on the adhesive layer (A). According to the present invention, the percutaneous absorbability of the drug can be improved, and a patch free of problems such as adhesive residue and adhesive bleed can be provided.

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Wikipedia ‘oxybutynin’ (http://en.wikipedia.org/wiki/Oxybutynin), p. 1.

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