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Related Experiment Videos

Transdermal iontophoresis.

Priya Batheja1, Batheja Priya, Rashmi Thakur

  • 1Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers-The State University of New Jersey, 145 Bevier Road, Piscataway, NJ 08854, USA.

Expert Opinion on Drug Delivery
|December 24, 2005
PubMed
Summary

Iontophoresis uses electric current to enhance drug delivery through the skin. This technique effectively delivers various compounds, including peptides, with advancements leading to sophisticated devices for controlled drug administration.

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Area of Science:

  • Pharmacology
  • Biomedical Engineering
  • Materials Science

Background:

  • Iontophoresis is a transdermal drug delivery method utilizing electric current.
  • It enhances permeation of charged and neutral compounds via electromigration and electro-osmosis.
  • This technique allows for programmed drug delivery.

Purpose of the Study:

  • To review the basic concepts, principles, and applications of iontophoresis.
  • To highlight advancements in iontophoretic drug delivery systems.
  • To discuss the potential of iontophoresis for delivering various therapeutic agents.

Main Methods:

  • Review of scientific literature on iontophoresis.
  • Discussion of electromigration and electro-osmosis principles.

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  • Exploration of combined techniques (e.g., chemical enhancers, electroporation, sonophoresis).

    • Main Results:

    • Successful transdermal delivery of low and high molecular weight drugs, including peptides like insulin.
    • Demonstration of enhanced permeation and controlled drug release.
    • Advancements in device miniaturization and microelectronics for improved iontophoretic systems.

    Conclusions:

    • Iontophoresis is a versatile technique for transdermal drug delivery.
    • Combinations with other methods and technological advancements improve efficacy and control.
    • Sophisticated iontophoretic systems, like the fentanyl E-TRANS, show promising results for drug administration.