The present invention provides an iontophoresis device allowing effective and continuous absorption for a long period. The iontophoresis device comprises the first electrode structure (100a) and the second electrode structure (110a) each having a hydrophilic conductive layer (102a, 112a) containing active ingredient and an electrode member (101a, 111a), and a power supply (120a) having polarity inverting means 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:1.0 × (I × T × 0.022) ≤ 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).
本发明提供了一种可长期有效持续吸收的离子透入装置。该离子透入装置包括第一电极结构(100a)和第二电极结构(110a),每个电极结构都有一个含有活性成分的亲
水性导电层(102a,112a)和一个电极部件(101a,111a),以及一个电源(120a),该电源具有极性反转装置,用于在两个电极结构之间切换电流方向,其中第一和第二电极结构中至少有一个含有
氯离子,在给药前,
氯离子含量(P mg)在满足下式的范围内:1.0 × (I × T × 0.022) ≤ P 其中,T 表示极性反转时间(分钟),直到按一定方向通电后极性反转为止,I 表示平均电流(毫安)。