Patent ID: 6597947
Filing Date: 2003-07-22
Classification: A61N

Abstract:
An iontophoresis device comprising: first and second electrode structures each having a hydrophilic conductive layer containing at least one active ingredient and an electrode member made of an active electrode material; and a power supply having polarity inverting means which is electrically connected between the electrode members in the first and the second electrode structures for switching over a current direction between the two electrode structures, wherein at least one of the first and the second electrode structures contains chloride ions and before administration, a chloride-ion content (P mg) is within a range satisfying the following equation:1.0Ã—(IÃ—TÃ—0.022)&lE;P wherein T represents a polarity inverting time (min) until polarity is inverted after energization in a certain direction and I represents an average current (mA).