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Transdermal iontophoresis revisited
R Panchagnula1, O Pillai, V B Nair
1Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Punjab, India. panchagnula@yahoo.com
Current Opinion in Chemical Biology
|August 26, 2000
Summary
Iontophoresis enhances transdermal drug delivery for large molecules. Research focuses on overcoming challenges like device cost and skin compatibility to make this technology a commercial reality.
Area of Science:
- Pharmacology and Drug Delivery
- Biomedical Engineering
Background:
- Iontophoresis, a transdermal enhancement technique developed in the 20th century, facilitates the delivery of large and charged molecules.
- Advancements in understanding iontophoresis mechanisms have driven the development of sophisticated delivery systems.
Purpose of the Study:
- To review the progress and challenges in iontophoretic drug delivery.
- To explore strategies for overcoming limitations and advancing iontophoresis towards commercial viability.
- To highlight the potential of reverse iontophoresis for diagnostic applications.
Main Methods:
- Review of existing literature on iontophoresis mechanisms and applications.
- Analysis of challenges in device portability, cost-effectiveness, and formulation compatibility.
- Exploration of combined enhancement techniques and reverse iontophoresis.
Main Results:
- Significant progress in understanding iontophoresis mechanisms.
- Identification of key challenges including device development, formulation stability, and skin compatibility.
- Demonstration of potential for combined techniques and reverse iontophoresis.
Conclusions:
- Iontophoresis is a promising technique for transdermal delivery of macromolecules.
- Addressing challenges in device and formulation development is crucial for commercialization.
- Reverse iontophoresis presents novel diagnostic and monitoring possibilities.