Passive and iontophoretic transdermal delivery of phenobarbital: implications in paediatric therapy

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Abstract

The objective of this investigation was to evaluate phenobarbital transdermal delivery for possible use in paediatric care. In vitro experiments were performed using intact pig skin and barriers from which the stratum corneum had been stripped to different extents to model the less resistant skin of premature babies. Cathodal iontophoretic delivery of phenobarbital was superior to anodal transport and optimised delivery conditions were achieved by reduction of competing co-ion presence in the drug formulation. Phenobarbital transport across intact or partially compromised skin was controlled by iontophoresis which was more efficient than passive diffusion. Across highly compromised skin, however, passive diffusion increased drastically and iontophoretic control was lost. Overall, this study demonstrates the feasibility of phenobarbital transdermal delivery for paediatric patients.
LanguageEnglish
Pages76-82
JournalInternational Journal of Pharmaceutics
Volume435
Issue number1
DOIs
StatusPublished - 2012

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Phenobarbital
Pediatrics
Skin
Iontophoresis
Drug Compounding
Feasibility Studies
Therapeutics
Cornea
Swine
Ions

Cite this

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title = "Passive and iontophoretic transdermal delivery of phenobarbital: implications in paediatric therapy",
abstract = "The objective of this investigation was to evaluate phenobarbital transdermal delivery for possible use in paediatric care. In vitro experiments were performed using intact pig skin and barriers from which the stratum corneum had been stripped to different extents to model the less resistant skin of premature babies. Cathodal iontophoretic delivery of phenobarbital was superior to anodal transport and optimised delivery conditions were achieved by reduction of competing co-ion presence in the drug formulation. Phenobarbital transport across intact or partially compromised skin was controlled by iontophoresis which was more efficient than passive diffusion. Across highly compromised skin, however, passive diffusion increased drastically and iontophoretic control was lost. Overall, this study demonstrates the feasibility of phenobarbital transdermal delivery for paediatric patients.",
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AU - Guy,Richard H

AU - Delgado-Charro,M Begoña

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AB - The objective of this investigation was to evaluate phenobarbital transdermal delivery for possible use in paediatric care. In vitro experiments were performed using intact pig skin and barriers from which the stratum corneum had been stripped to different extents to model the less resistant skin of premature babies. Cathodal iontophoretic delivery of phenobarbital was superior to anodal transport and optimised delivery conditions were achieved by reduction of competing co-ion presence in the drug formulation. Phenobarbital transport across intact or partially compromised skin was controlled by iontophoresis which was more efficient than passive diffusion. Across highly compromised skin, however, passive diffusion increased drastically and iontophoretic control was lost. Overall, this study demonstrates the feasibility of phenobarbital transdermal delivery for paediatric patients.

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