Interface for iontophoresis

A - Human Necessities – 61 – K

Patent

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A61K 9/70 (2006.01) A61K 38/00 (2006.01) A61N 1/30 (2006.01)

Patent

CA 2178444

A hydrophilic membrane having a low adsorptivity for a protein is disposed, as an interface, in a side to be contacted with a skin, and a drug such as a physio- logically active peptide is transdermally delivered by iontophoresis. The membrane has an adsorptivity for a protein of not greater than 10 µg/cm2. The thickness of the membrane is about 10 to 200 µm and the porosity of the membrane is about 60 to 90%. Such membrane includes a hydrophilized fluororesin membrane, a hydrophilized polysulfone membrane and a hydrophilized cellulose de- rivative membrane.

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