|
KMID : 0043320090320121767
|
|
Archives of Pharmacal Research
2009 Volume.32 No. 12 p.1767 ~ p.1774
|
|
|
Application of Mixture Experimental Design in the Formulation and Optimization of Matrix Tablets Containing Carbomer and Hydroxypropylmethylcellulose
|
|
Radmila Popovic
Aleksandra Petrovic
Nebojsa Cvetkovic
Dragica Popadic
Svetlana Ibric
Svetlana Trajkovic
Zorica Djuric
|
|
|
Abstract
|
|
|
|
Using mixture experimental design, the effect of carbomer (Carbopol® 971P NF) and hydroxypropylmethylcellulose (Methocel® K100M or Methocel® K4M) combination on the release profile and on the mechanism of drug liberation from matrix tablet was investigated. The numerical optimization procedure was also applied to establish and obtain formulation with desired drug release. The amount of TP released, release rate and mechanism varied with carbomer ratio in total matrix and HPMC viscosity. Increasing carbomer fractions led to a decrease in drug release. Anomalous diffusion was found in all matrices containing carbomer, while Case - II transport was predominant for tablet based on HPMC only. The predicted and obtained profiles for optimized formulations showed similarity. Those results indicate that Simplex Lattice Mixture experimental design and numerical optimization procedure can be applied during development to obtain sustained release matrix formulation with desired release profile.
|
|
|
KEYWORD
|
|
|
Sustained release dosage form, Mixture experimental design, HPMC/carbomer matrices, In vitro tests, Dissolution
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
  
|