Glipizide matrix transdermal systems for diabetes mellitus: preparation, in vitro and preclinical studies.
Life Sci
; 79(16): 1568-77, 2006 Sep 13.
Article
em En
| MEDLINE
| ID: mdl-16730752
ABSTRACT
The aim of the present investigation was to prepare glipizide matrix transdermal systems using the combinations of ethyl cellulose/polyvinylpyrrolidone and Eudragit RL-100/Eudragit RS-100. The systems were evaluated for various in vitro (drug content, drug permeation, scanning electron microscopy and drug-polymer interactions) and in vivo (acute and long-term hypoglycemic activity, biochemical and histopathological studies, skin irritation and pharmacokinetic studies in mice) parameters. Drug content of the patches was found to be more than 98%. Variations in drug permeation profiles were observed among various formulations. The scanning electron microscopy of the patches showed the formation of pores on the surface after in vitro permeation studies. The drug-polymer interaction results suggested no interaction between drug and polymers. The in vivo results revealed that the patches successfully prevented the severe hypoglycemia in the initial hours and they were also effective on chronic application. The transdermal route exhibited negligible skin irritation and produced better improvement with all the tested in vivo parameters compared to oral administration.
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Base de dados:
MEDLINE
Assunto principal:
Sistemas de Liberação de Medicamentos
/
Diabetes Mellitus
/
Glipizida
/
Hipoglicemiantes
Tipo de estudo:
Evaluation_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2006
Tipo de documento:
Article