Graphical process design tools for iontophoretic transdermal drug-delivery devices

Document Type

Article

Publication Date

9-1-2012

Abstract

A graphical procedure was proposed for the optimum design of transdermal drug-delivery systems enhanced by iontophoresis. Contour plots displayed the relationships among steady-state plasma level, current density and initial drug concentration in a vehicle. This information was combined with a closed-form expression of the process time constant, estimated as the medicament in the blood reaches a plateau after application of the electric field. Analysis was conducted using Laplace-transformed variables and did not require time-domain solutions. Simulation results show that a current density of 0.044mA/cm2 and a loading of 3500μg/ml of dexamethasone sodium m-sulfobenzoate were necessary to achieve an equilibrium plasma concentration of 1.254ng/cm3 with a time constant of 8.34h. © 2011 Elsevier Ireland Ltd.

Identifier

84863869783 (Scopus)

Publication Title

Computer Methods and Programs in Biomedicine

External Full Text Location

https://doi.org/10.1016/j.cmpb.2011.01.004

e-ISSN

18727565

ISSN

01692607

PubMed ID

21345513

First Page

447

Last Page

455

Issue

3

Volume

107

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