Effect of Modulated Alternating and Direct Current Iontophoresis on Transdermal Delivery of Lidocaine Hydrochloride

Figure 1

Iontophoretic setup that was used for iontophoretic studies of lidocaine, silver wire (represented in red) served as the anode (active electrode) and silver wire coated with silver chloride (represented in black) serve as cathode. The electrodes were connected to a current source to perform anodal iontophoresis.