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Munir, Rabia; Hadi, Abdul; Khan, Salah-Ud-Din; Asghar, Sajid; Irfan, Muhammad; Khan, Ikram Ullah; Hameed, Misbah; Inam, Sana; Islam, Nayyer; Hassan, Shahzadi Filza; Ishtiaq, Memoona; Akhtar Shah, Pervaiz; Iqbal, Muhammad Shahid; Khalid Syed, Haroon; Khames, Ahmed; A S Abourehab, Mohammad
Polymers, 01/2022, Letnik: 14, Številka: 3Journal Article
The objective of this study was to improve the dissolution and solubility of dexibuprofen (DEX) using hydroxypropyl beta cyclodextrin (HPβCD) inclusion complexes and also to evaluate the effect of presence of hydrophilic polymers on solubilization efficiency of HPβCD. Three different methods (physical trituration, kneading and solvent evaporation) were used to prepare binary inclusion complexes at various drug-to-cyclodextrin weight ratios. An increase in solubility and drug release was observed with the kneading (KN) method at a DEX/HPβCD (1:4) weight ratio. The addition of hydrophilic polymers poloxamer-188 (PXM-188) and poloxamer-407 (PXM-407) at 2.5, 5.0, 10.0 and 20% enhanced the complexation efficiency and solubility of DEX/HPβCD significantly. Fourier-transform infrared (FTIR) analysis revealed that DEX was successfully incorporated into the cyclodextrin cavity. Differential scanning calorimetry (DSC) and X-ray diffractometry (XRD) revealed less crystallinity of the drug and its entrapment in the cyclodextrin molecular cage. The addition of PXM-188 or PXM-407 reduced the strength of the DEX endothermic peak. With the addition of hydrophilic polymers, sharp and intense peaks of DEX disappeared. Finally, it was concluded that PXM-188 at a weight ratio of 10.0% was the best candidate for improving solubility, stability and release rate of DEX.
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in: SICRIS
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