采用溶剂浇铸法制备阿立哌唑口腔膜剂。以膜剂的厚度、质量、机械性能、崩解时间、含量及含量均匀度为指标,采用单因素试验考察了成膜材料、增塑剂和填充剂对膜剂性能的影响。所得优化处方制品厚度均匀性较好、具有适宜的柔韧度和拉伸性...采用溶剂浇铸法制备阿立哌唑口腔膜剂。以膜剂的厚度、质量、机械性能、崩解时间、含量及含量均匀度为指标,采用单因素试验考察了成膜材料、增塑剂和填充剂对膜剂性能的影响。所得优化处方制品厚度均匀性较好、具有适宜的柔韧度和拉伸性能,重量差异、含量及含量均匀度符合中国药典要求,在体外能在30 s内崩解。以市售阿立哌唑口腔崩解片为参比制剂,对比研究优化后膜剂的体外溶出度和在Beagle犬体内的药动学行为。结果表明,本品在p H 4.0乙酸盐缓冲液中的溶出行为优于参比制剂,在Beagle犬体内与参比制剂生物等效。展开更多
The aim of this study was to develop a palatable donepezil(DP) orodispersible film(ODF)to facilitate the swallowing process and investigate the effect of cyclodextrin on tastemasking based on dynamic process and in vi...The aim of this study was to develop a palatable donepezil(DP) orodispersible film(ODF)to facilitate the swallowing process and investigate the effect of cyclodextrin on tastemasking based on dynamic process and in vivo drug absorption. Complexation of DP with hydroxypropyl-β-cyclodextrin(HP-β-CD) was applied to mask the bitter taste then the prepared complexes were incorporated into ODF using solvent casting method. The tastemasking efficiency was evaluated by e-tongue; meanwhile the pharmacokinetic behavior of DP/HP-β-CD ODF was investigated by in vivo study. Results showed the optimized film was more palatable than donepezil hydrochloride(DH) film and was bioequivalent with DH. The molecular mechanism was revealed by phase solubility study, Fourier-transform infrared spectrometer(FT-IR), Differential scanning calorimeter(DSC), X-ray diffraction(XRD) and molecular modeling. Taste-masking was attributed to the formation of DP/HP-β-CD which was due to moderate interaction between DP and HP-β-CD. The stability of DP/HP-β-CD was decreased because of the acid environment in stomach, which facilitated the absorption of DP. These results extended our understanding about the application of cyclodextrin complexation and provided guidance for the design of ODF especially for drugs with disgusting taste.展开更多
文摘采用溶剂浇铸法制备阿立哌唑口腔膜剂。以膜剂的厚度、质量、机械性能、崩解时间、含量及含量均匀度为指标,采用单因素试验考察了成膜材料、增塑剂和填充剂对膜剂性能的影响。所得优化处方制品厚度均匀性较好、具有适宜的柔韧度和拉伸性能,重量差异、含量及含量均匀度符合中国药典要求,在体外能在30 s内崩解。以市售阿立哌唑口腔崩解片为参比制剂,对比研究优化后膜剂的体外溶出度和在Beagle犬体内的药动学行为。结果表明,本品在p H 4.0乙酸盐缓冲液中的溶出行为优于参比制剂,在Beagle犬体内与参比制剂生物等效。
文摘The aim of this study was to develop a palatable donepezil(DP) orodispersible film(ODF)to facilitate the swallowing process and investigate the effect of cyclodextrin on tastemasking based on dynamic process and in vivo drug absorption. Complexation of DP with hydroxypropyl-β-cyclodextrin(HP-β-CD) was applied to mask the bitter taste then the prepared complexes were incorporated into ODF using solvent casting method. The tastemasking efficiency was evaluated by e-tongue; meanwhile the pharmacokinetic behavior of DP/HP-β-CD ODF was investigated by in vivo study. Results showed the optimized film was more palatable than donepezil hydrochloride(DH) film and was bioequivalent with DH. The molecular mechanism was revealed by phase solubility study, Fourier-transform infrared spectrometer(FT-IR), Differential scanning calorimeter(DSC), X-ray diffraction(XRD) and molecular modeling. Taste-masking was attributed to the formation of DP/HP-β-CD which was due to moderate interaction between DP and HP-β-CD. The stability of DP/HP-β-CD was decreased because of the acid environment in stomach, which facilitated the absorption of DP. These results extended our understanding about the application of cyclodextrin complexation and provided guidance for the design of ODF especially for drugs with disgusting taste.
