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Comparison of the solubility and dissolution rate between gliclazide solid complex and its nanospheres
Yung-Kuang Lo1, Chiu-Ju Chen, Tong-Rong Tsai
1Graduate Institute of Pharmaceutical Sciences, Kaohsiung Medical University, San Min District, Kaohsiung City, Taiwan, ROC.
Drug Development and Industrial Pharmacy
|April 25, 2007
Summary
Nanotechnology significantly enhances gliclazide solubility and dissolution rates. Gliclazide nanospheres prepared via precipitation solvent evaporation showed superior performance compared to solid complexes and the pure drug.
Area of Science:
- Pharmaceutical Sciences
- Materials Science
Background:
- Gliclazide, an antidiabetic drug, often suffers from poor solubility and dissolution.
- Improving gliclazide's bioavailability is crucial for effective diabetes management.
Purpose of the Study:
- To prepare and characterize gliclazide nanospheres using nanotechnology.
- To compare the dissolution rate of gliclazide from nanospheres against its solid complex and pure form.
Main Methods:
- Gliclazide solid complex prepared by neutralization.
- Gliclazide nanospheres prepared by precipitation solvent evaporation.
- Characterization using Fourier-transform infrared spectroscopy and differential scanning calorimetry.
Main Results:
- Successful formation of gliclazide solid complex and nanospheres confirmed.
- Gliclazide nanospheres exhibited significantly faster dissolution rates than the solid complex and pure drug.
- Nanosphere morphology indicated an absence of gliclazide crystalline character, suggesting amorphous state.
Conclusions:
- Nanotechnology, specifically via precipitation solvent evaporation, effectively enhances gliclazide solubility and dissolution.
- The developed gliclazide nanospheres offer a promising approach for improving drug delivery and therapeutic efficacy.
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