Study of Improvement of Dissolution Rate of Gliclazide By Solid Dispersion Technique Using Poloxamer 407
About Authors:
Garg Pushpendra, Nanda Arun
Department of Pharmaceutical Sciences
Maharshi Dayanand University, Rohtak-124001
Haryana, India.
ABSTRACT
The objective of the present study was to improve the dissolution rate of gliclazide, a poorly water soluble (BCS class-II) drug by solid dispersion technique using a water soluble carrier, poloxamer 407. The solid dispersions were prepared by fusion method using different concentrations of carrier and the prepared systems showed an enhancement in dissolution. Solid dispersions were characterized with Differential scanning calorimetry, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and dissolution analysis. The study revealed that enhanced dissolution of gliclazide from solid dispersion was due to a decrease in crystallinity of drug and also due to dissolution of gliclazide in molten form of solid dispersion. In conclusion preparation of gliclazide dispersion with meltable hydrophilic polymer could be a promising approach to improve the dissolution rate.

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