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Related Experiment Videos

Physicochemical characterization and dissolution properties of meloxicam-cyclodextrin binary systems.

N Buchi Naidu1, K P R Chowdary, K V R Murthy

  • 1Department of Pharmaceutical Sciences, Andhra University, Visakhapatnam, India. nbnaid2@email.uky.edu

Journal of Pharmaceutical and Biomedical Analysis
|March 20, 2004
PubMed
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This study shows that complexing meloxicam (ME) with cyclodextrins (CDs) improves its dissolution properties. The binary systems formed enhanced meloxicam solubility and bioavailability.

Area of Science:

  • Pharmaceutical Sciences
  • Physical Chemistry
  • Materials Science

Background:

  • Meloxicam (ME) is a non-steroidal anti-inflammatory drug with limited aqueous solubility.
  • Cyclodextrins (CDs) are cyclic oligosaccharides with a hydrophobic cavity and hydrophilic exterior, widely used to enhance the solubility and bioavailability of poorly soluble drugs.

Purpose of the Study:

  • To investigate the physicochemical properties of meloxicam-cyclodextrin (ME-CD) binary systems.
  • To enhance the dissolution properties of meloxicam through complexation with alpha-, beta-, and gamma-cyclodextrins.
  • To characterize the inclusion complex formation in both solution and solid states.

Main Methods:

  • Phase solubility analysis
  • Mass spectrometry

Related Experiment Videos

  • 1H Nuclear Magnetic Resonance (NMR) spectroscopy
  • Differential Scanning Calorimetry (DSC)
  • Powder X-ray diffractometry (PXRD)
  • Scanning Electron Microscopy (SEM)
  • In vitro dissolution studies

    • Main Results:

    • Solution studies confirmed 1:1 molar complexation of meloxicam with all tested cyclodextrins (alpha-, beta-, and gamma-CD).
    • Solid-state studies, particularly with gamma-cyclodextrin, confirmed true inclusion complex formation at 1:1 and 1:2 molar ratios.
    • ME-CD binary systems exhibited significantly superior dissolution properties compared to pure meloxicam.

    Conclusions:

    • Complexation with alpha-, beta-, and gamma-cyclodextrins effectively enhances the dissolution rate of meloxicam.
    • The formation of inclusion complexes is confirmed in both solution and solid states, with gamma-cyclodextrin showing notable efficacy.
    • These findings suggest that ME-CD binary systems hold promise for improving meloxicam's therapeutic efficacy.