Surface modified zeolite-based granulates for the sustained release of diclofenac sodium.
Eur J Pharm Sci
; 99: 202-208, 2017 Mar 01.
Article
em En
| MEDLINE
| ID: mdl-28012939
ABSTRACT
In this study, a granulate for the oral controlled delivery of diclofenac sodium (DS), an anionic sparingly soluble nonsteroidal anti-inflammatory drug, has been realized by wet granulation, using a surface modified natural zeolite (SMNZ) as an excipient. The surface modification of the zeolite has been achieved by means of a cationic surfactant, so as to allow the loading of DS through ionic interaction and bestow a control over the drug release mechanism. The granules possessed a satisfactory dosage uniformity, a flowability suitable for an oral dosage form manufacturing, along with a sustained drug release up to 9h, driven by both ion exchange and transport kinetics. Furthermore, the obtained granulate did not elicit a significant cytotoxicity and could also induce a prolonged anti-inflammatory effect on RAW264.7 cells. Taking also into account that natural zeolites are generally abundant and economic, SMNZ can be considered as an attracting alternative excipient for the production of granules with sustained release features.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Diclofenaco
/
Zeolitas
/
Preparações de Ação Retardada
Limite:
Animals
Idioma:
En
Revista:
Eur J Pharm Sci
Assunto da revista:
FARMACIA
/
FARMACOLOGIA
/
QUIMICA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Itália