Iontophoresis in Transdermal Drug Delivery

Abstract

This paper is designed by keeping in mind the efficiency and ease of drug delivery through transdermal method. Iontophoresis is a technique that is used to deliver the drug through the skin by the flow of electric current. To deliver the correct dosage, current flow through the skin must be actively controlled by automated system. Iontophoresis is a non- invasive, non-traumatic and painless modality used to deliver large quantity of medicine into a localized area in a cost effective and portable manner that uses electrical current to administer a transdermal drug over minutes to hours. This paper is designed to reduce the time of application of current for the drug permeation and ensure that constant current is maintained throughout the entire process. Since iontophoresis delivers drug transdermally, only small amount of the drug are absorbed into the systemic circulation. Its primary musculoskeletal use is for acute or sub-acute, localized inflammation near the skin's surface.