Journal of Pharmaceutical Investigation

The Korean Society of Pharmaceutical Sciences and Technology (한국약제학회)
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Preparation and Characterization of Piroxicam/Poloxamer Solid Dispersion Prepared by Melting Method and Solvent Method

  • Yu, Hang (BK21 Project Team, College of Pharmacy, Chosun University) ;
  • Chun, Myung-Kwan (BK21 Project Team, College of Pharmacy, Chosun University) ;
  • Choi, Hoo-Kyun (BK21 Project Team, College of Pharmacy, Chosun University)
  • Published : 2007.02.21
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Abstract

Solid dispersions of piroxicam were prepared by melting method using poloxamer as a carrier. The results of DSC and XRD studies showed that the amorphous farm of piroxicam coexisted with the crystalline form in the solid dispersions. However, the ratio of crystalline form of piroxicam in the solid dispersion prepared by melting method decreased in comparison with the same ratio of the solid dispersion prepared by solvent method. As the ratio of poloxamer in the solid dispersion increased, the ratio of the amorphous form of piroxicam in the solid dispersion increased. The dissolution rate of piroxicam from the solid dispersions was significantly higher than that from piroxicam powder. In comparison to the solid dispersion prepared by solvent method, the dissolution rate of piroxicam from the solid dispersion prepared by melting method was higher. As the ratio of poloxamer in the solid dispersion prepared by melting method increased, the initial dissolution rate decreased, however, the total amount dissolved at the end of the study increased.

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