Formulation Design and Optimization of Repaglinide Solid Dispersions by Central Composite Design

DOI:

https://doi.org/10.37285/ijpsn.2018.11.6.7

Authors

  • Bhikshapathi D. V. R. N.
  • Srinivas I

Abstract

Repaglinide is a pharmaceutical drug used for the treatment of type II diabetes mellitus, it is characterized with poor solubility which limits its absorption and dissolution rate and delays onset of action. In the present study, immediate release solid dispersion of repaglinide was formulated by solvent evaporation technique. Repaglinide solid dispersions were prepared using PEG 8000, Pluronic F 127 and Gelucire 44/14 by solvent evaporation method. A 3-factor, 3-level central composite design employed to study the effect of each independent variable on dependent variables. FTIR studies revealed that no drug excipient interaction takes place. From powder X-ray diffraction (p-XRD) and by scanning electron microscopy (SEM) studies it was evident that polymorphic form of repaglinide has been converted into an amorphous form from crystalline within the solid dispersion formulation. The correlation coefficient showed that the release profile followed Higuchi model anomalous behavior and hence release mechanism was indicative of diffusion. The obtained results suggested that developed solid dispersion by solvent evaporation method might be an efficacious approach for enhancing the solubility and dissolution rate of repaglinide.

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Keywords:

Repaglinide, Diabetes, Solid dispersion, Central composite design.

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Published

2018-11-30

How to Cite

1.
D. V. R. N. B, I S. Formulation Design and Optimization of Repaglinide Solid Dispersions by Central Composite Design. Scopus Indexed [Internet]. 2018 Nov. 30 [cited 2024 Dec. 9];11(6):4337-48. Available from: https://www.ijpsnonline.com/index.php/ijpsn/article/view/403

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Section

Research Articles

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