Transdermal drug delivery device.

摘要

A disposable electrode (3) for use in a transdermal device comprises a first surface adapted for contact with human skin and through which a drug substance contained in the electrode passes to the skin under the influence of an iontophoretic or electro-osmotic force and a second surface (4) which is electrically conducting, the electrode has a surface area in contact with the skin, in use, in the range 0.1 to 30 cm<2> and a drug dissolved or dispersed in a hydrophilic medium (5) at a concentration in the range 0.1 to 15% (w/v) based on the hydrophilic medium.