Cefuroxime axetil solid dispersions prepared using solution enhanced dispersion by supercritical fluids

J Pharm Pharmacol. 2005 Dec;57(12):1529-37. doi: 10.1211/jpp.57.12.0003.

Abstract

Cefuroxime axetil (CA) solid dispersions with HPMC 2910/PVP K-30 were prepared using solution enhanced dispersion by supercritical fluids (SEDS) in an effort to increase the dissolution rate of poorly water-soluble drugs. Their physicochemical properties in solid state were characterized by differential scanning calorimeter (DSC), powder X-ray diffraction (PXRD), Fourier transform infrared spectrometry (FT-IR) and scanning electron microscopy. No endothermic and characteristic diffraction peaks corresponding to CA were observed for the solid dispersions in DSC and PXRD. FTIR analysis demonstrated the presence of intermolecular hydrogen bonds between CA and HPMC 2910/PVP K-30 in solid dispersions, resulting in the formation of amorphous or non-crystalline CA. Dissolution studies indicated that the dissolution rates were remarkably increased in solid dispersions compared with those in the physical mixture and drug alone. In conclusion, an amorphous or non-crystalline CA solid dispersion prepared using SEDS could be very useful for the formulation of solid dosage forms.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / chemistry*
  • Calorimetry, Differential Scanning
  • Cefuroxime / analogs & derivatives*
  • Cefuroxime / chemistry
  • Chromatography, Supercritical Fluid
  • Hydrogen Bonding
  • Microscopy, Electron, Scanning
  • Solubility
  • Spectroscopy, Fourier Transform Infrared

Substances

  • Anti-Bacterial Agents
  • Cefuroxime
  • cefuroxime axetil