Document Type

Thesis

Date of Award

Spring 5-31-2004

Degree Name

Master of Science in Pharmaceutical Engineering - (M.S.)

Department

Chemical Engineering

First Advisor

Laurent Simon

Second Advisor

Piero M. Armenante

Third Advisor

Bozena B. Michniak

Abstract

In this work, a two-pathway mathematical model for transdermal drug delivery with iontophoresis is presented. The partial differential equations are described and then solved. An alternative, two-pathway, three-layer model is also presented, and the implications of the coefficients within the equation are discussed. Using Franz cell iontophoretic delivery data from three drug substances (amitriptyline HCl, clomipramine HCl, and nortriptyline HCl), the two-pathway model is regressed to determine the diffusion coefficient and the concentration within the skin at the drug reservoir interface. ANOVA analysis indicates a correlation between iontophoretic current and concentration of drug within the stratum corneum.

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