New Delivery Systems for Local Anaesthetics—Part 2

Figure 8

Iontophoresis. Components of an anodal iontophoretic device are a current source; a current control device; anode (donor) reservoir system (with a positively charged drug/ion in solution); cathode reservoir system (on a different skin site). With an electric current, all cations move away from the anode and into the skin, and negatively charged ions move from the body into donor reservoir.