Conductivity of drugs used for iontophoresis

The electrical conductivities of drugs were measured in vitro using a conductivity MHO-meter. These experiments indicate that local anesthetics, vasoconstrictors, some corticosteroids, several anticancer drugs, and several antiviral agents are suitable for iontophoresis. The contribution to conductivity of buffers and nonspecific ions in the same solution with the drug also was defined.