HAN Li-wei, ZHANG Gui-ying, GONG Wei-hong, et al. Preparation and Evaluation of Puerarin- Polyvinylpyrrolidone K30 Solid Dispersions[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(20): 1-4.
HAN Li-wei, ZHANG Gui-ying, GONG Wei-hong, et al. Preparation and Evaluation of Puerarin- Polyvinylpyrrolidone K30 Solid Dispersions[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(20): 1-4.DOI:
Objective: To prepare solid dispersions of puerarin with polyvinylpyrrolidone K30 (PVP K30) to improve dissolution of puerarin. Method: Solid dispersion of puerarin-PVP was prepared by solvent method with PVP K30 as carrier. And the best proportion of puerarin to PVP K30 has been optimized.Nature of the solid dispersion was evaluated by dissolution test
differential scanning calorimetry(DSC)
infrared spectroscopy(IR) and X-ray diffraction(XRD). Result: Optimum proportion of puerarin to PVP K30 was 1 ∶3.Dissolution rate of puerarin in the solid dispersions was 2 folds as that of material medicine. The results of DSC
IR and XRD showed that puerarin in the solid dispersion was amorphous form
and hydrogen bond may have been formed between puerarin and PVP K30. Conclusion: Dissolution rate of puerarin could be improved in solid dispersion of puerarin-PVP which prepared by solvent method.