This research aimed to improve the solubility and stabilize cefpodoxime proxetil (CP), a class IV drug, by amorphous solid dispersion (ASD) technique. Four formulations were prepared by dispersing amorphous CP in soluplus, polyvinylpyrrolidone (PVP K30), and ethyl cellulose (EC) blends in different compositions and ratios. The optimum formulation was stored in accelerated conditions at 40 °C and 75% relative humidity for six months. The drug's solubility and dissolution rate in different systems were explored. Furthermore, Differential Scanning Calorimetry (DSC), X-ray Powder Diffractometry (PXRD), Fourier Transform Infrared spectroscopy (FTIR), and Field Emission Scanning Electron Microscopy (FESEM) were used to examine the physical state of the drug. The antibacterial activity of the drug was evaluated during the experiment. When mixing CP with soluplus and PVP K30 in a 1:1:1 ratio as ASD, the drug solubility at pH 1.2 enhanced about 28 folds than a pure drug, and the dissolution rate increment was observed. The DSC, FTIR, and PXRD data confirmed the drug is amorphous and miscible with these polymers. FESEM revealed particle size reduction. The antibacterial activity was raised. After storage in the accelerated condition, physical investigations indicated that no recrystallization occurred, and this condition had little effect on in vitro drug dissolution and antibacterial activity. This can be a good indicator of the drug's solubility enhancement and physical stability optimization that will make the possibility of preparing this drug in the future as an oral solid dosage form with the possibility of manufacturing with a drug company due to the promising results.
Amorphous solid dispersion (ASD) technique cefpodoxime proxetil physical stability solubility
Primary Language | English |
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Subjects | Pharmacology and Pharmaceutical Sciences (Other) |
Journal Section | Articles |
Authors | |
Publication Date | July 5, 2025 |
Submission Date | July 15, 2024 |
Acceptance Date | August 20, 2024 |
Published in Issue | Year 2025 Volume: 29 Issue: 4 |