Iontophoresis: Principle and Its Applications

Iontophoresis is a fascinating technique that utilizes a low electric current to facilitate the transdermal delivery of ions and charged molecules. This method has garnered significant interest in recent years as an alternative to traditional drug delivery systems, especially for targeting localized conditions and minimizing systemic side effects. This review provides an in depth examination of the principles underlying iontophoresis, including its mechanisms, equipment, and factors affecting drug transport. Key applications in dermatology, pain management and treatment of hyperhidrosis are highlighted, showcasing the therapeutic potential of iontophoresis across diverse medical fields. Additionally, we address recent advancements, such as the development of novel drug formulations and enhanced device technologies, which have improved the efficacy and broadened the applications of iontophoretic drug delivery. Challenges, including skin irritation and variability in individual responses, are discussed alongside potential strategies for overcoming these limitations. This article aims to present a comprehensive overview of iontophoresis and its growing role in modern medicine, while also identifying future research directions for optimizing its clinical use..