Enhanced dissolution of ibuprofen using solid dispersion with polyethylene glycol 20000

Area of Science:

• Pharmaceutical Sciences
• Drug Delivery Systems

Background:

• Improving the dissolution rate of poorly soluble drugs like ibuprofen is crucial for enhancing oral absorption.
• Solid dispersions (SDs) offer a promising strategy to overcome solubility limitations.

Purpose of the Study:

• To prepare and characterize ibuprofen solid dispersions (SDs) using a simple low-temperature melting method.
• To evaluate the impact of these SDs on ibuprofen's solubility, dissolution, and oral absorption in rats.

Main Methods:

• Ibuprofen solid dispersions (SDs) were prepared using polyethylene glycol 20000.
• Characterization involved scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and Fourier transform infrared spectroscopy (FTIR).
• In vitro drug release and in vivo oral absorption in rats were assessed.

Main Results:

• SEM indicated effective SD formation with loss of individual surface properties.
• DSC revealed potential drug-polymer interactions, while FTIR confirmed the presence of crystalline drug.
• Ibuprofen SDs demonstrated significantly enhanced oral absorption in rats, with increased AUC and C(max) and decreased T(max).

Conclusions:

• The low-temperature melting method using polyethylene glycol 20000 is a viable approach for creating fast-dissolving ibuprofen SDs.
• These ibuprofen SDs show potential for improving drug solubility, dissolution, and absorption rates.
• This method offers a promising strategy for enhancing the bioavailability of ibuprofen.