<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The purpose of the present study was to develop an optimized gastric floating drug delivery system (GFDDS) containing domperidone as a model drug. Box-Behnken design was employed in formulating the GFDDS with three polymers: hydroxypropyl methylcellulose K4M (HPMC K4M) (X1), Carbopol 934P (X2) and sodium alginate (X3), as independent variables. Floating lag time (FLT), total floating time (TFT), time required to release 50% of the drug (<italic>t</italic>50) and diffusion exponent (<italic>n</italic>) were selected as dependent variables. Seventeen formulations were prepared, dissolution data obtained was fitted to the power law and floating profiles were analyzed. HPMC loading was found to be significant for floating properties. Carbopol loading had a negative effect on floating properties but was found helpful in controlling the release rate of the drug. No significant effect of sodium alginate on floating properties was observed but it was important for gel formation. The quadratic mathematical model developed could be used to predict formulations with desired release and floating properties.</abstract>

The purpose of the present study was to develop an optimized gastric floating drug delivery system (GFDDS) containing domperidone as a model drug. Box-Behnken design was employed in formulating the GFDDS with three polymers: hydroxypropyl methylcellulose K4M (HPMC K4M) (X1), Carbopol 934P (X2) and sodium alginate (X3), as independent variables. Floating lag time (FLT), total floating time (TFT), time required to release 50% of the drug (t50) and diffusion exponent (n) were selected as dependent variables. Seventeen formulations were prepared, dissolution data obtained was fitted to the power law and floating profiles were analyzed. HPMC loading was found to be significant for floating properties. Carbopol loading had a negative effect on floating properties but was found helpful in controlling the release rate of the drug. No significant effect of sodium alginate on floating properties was observed but it was important for gel formation. The quadratic mathematical model developed could be used to predict formulations with desired release and floating properties.

Gastric floating matrix tablets: Design and optimization using combination of polymers

Department of Pharmaceutics, Shri Sarvajanik Pharmacy College, Mehsana-384001, Gujarat, India

Department of Pharmaceutics, DDIT Pharmacy College, Nadiad-387001 Gujarat, India

Acta Pharmaceutica

The purpose of the present study was to develop an optimized gastric floating drug delivery system (GFDDS) containing domperidone as a model drug. Box-Behnken...

Gastric floating matrix tablets: Design and optimization using combination of polymers

Publicado en línea: 30 may 2008

Páginas: 221 - 229

DOI: https://doi.org/10.2478/v10007-008-0006-3

Palabras clave
domperidon, plutajuće matriks tablete, Box-Behnkenovo dizajniranje, GFDDS, kinetika oslobađanja

This content is open access.

Gastric floating matrix tablets: Design and optimization using combination of polymers

Publicado en línea: 30 may 2008

Páginas: 221 - 229

DOI: https://doi.org/10.2478/v10007-008-0006-3

Palabras clavedomperidon, plutajuće matriks tablete, Box-Behnkenovo dizajniranje, GFDDS, kinetika oslobađanja

This content is open access.

Palabras clave
domperidon, plutajuće matriks tablete, Box-Behnkenovo dizajniranje, GFDDS, kinetika oslobađanja