Iontophoresis: applications in transdermal medication delivery

Area of Science:

• Pharmacology and Physical Therapy
• Drug Delivery Systems
• Biomedical Engineering

Background:

• Iontophoresis is a technique utilizing electric current to deliver ionic medications through the skin.
• Historically used in physical therapy for localized drug effects.
• Recent resurgence in interest for transdermal delivery of both ionic and nonionic drugs for systemic effects.

Purpose of the Study:

• To review the literature on iontophoresis for drug delivery.
• To discuss factors influencing iontophoretic drug transfer and skin permeation.
• To explore clinical applications and future research directions.

Main Methods:

• Literature review of iontophoresis.
• Discussion of physico-chemical and biological factors affecting drug transfer.
• Analysis of techniques for optimizing drug delivery, including current modulation and electrode design.

Main Results:

• Identified key factors influencing iontophoretic drug delivery for local and systemic administration.
• Highlighted methods to optimize drug delivery and minimize skin irritation.
• Presented current clinical applications and discussed potential future uses.

Conclusions:

• Iontophoresis is a versatile technique for transdermal drug delivery with potential for both local and systemic treatments.
• Understanding influencing factors is crucial for optimizing efficacy and safety.
• Further research is needed to fully explore its therapeutic potential.