Journal of Pharmaceutical Investigation

The Korean Society of Pharmaceutical Sciences and Technology (한국약제학회)
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Effect of Manufacturing Method and Acidifier on the Dissolution Rate of Carvedilol from Solid Dispersion Formulations

  • Lim, Dong-Kyun (Department of BIN Fusion Technology, Department of Polymer Nano Science Technology & Polymer Fusion Research Center, Chonbuk National University) ;
  • Bae, Jeong-Woo (Department of BIN Fusion Technology, Department of Polymer Nano Science Technology & Polymer Fusion Research Center, Chonbuk National University) ;
  • Song, Byung-Joo (Department of BIN Fusion Technology, Department of Polymer Nano Science Technology & Polymer Fusion Research Center, Chonbuk National University) ;
  • Jo, Han-Su (Department of BIN Fusion Technology, Department of Polymer Nano Science Technology & Polymer Fusion Research Center, Chonbuk National University) ;
  • Kim, Hyoung-Eun (Department of BIN Fusion Technology, Department of Polymer Nano Science Technology & Polymer Fusion Research Center, Chonbuk National University) ;
  • Lee, Dong-Won (Department of BIN Fusion Technology, Department of Polymer Nano Science Technology & Polymer Fusion Research Center, Chonbuk National University) ;
  • Khang, Gil-Son (Department of BIN Fusion Technology, Department of Polymer Nano Science Technology & Polymer Fusion Research Center, Chonbuk National University)
  • Received : 2011.09.08
  • Accepted : 2011.11.19
  • Published : 2011.12.20
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Abstract

In this study, we demonstrated the release behavior of carvedilol with the content of polyvinylpyrrolidone K-30 (PVP K-30) and the effect of citric acid and fumaric acid as acidifiers on the release behavior of drug. In addition, it tries to inquire into the release behavior difference of the carvedilol according to the manufacturing method. The release behavior of the tablets was compared with Dilatrand$^{(R)}$ in the simulated gastric fluid (pH1.2). Differential scanning calorimeter (DSC), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR) were characterized for the physicochemical properties of the tablets. In case of mixing the carvedilol and PVP K-30, in case the ratio of the carvedilol and PVP K-30 was 1:5, the release behavior was the highest among. As well as the dissolution rate of tablets manufactured by lyophilization and rotary evaporator was higher than physical mixture. The dissolution rate of containing acidifiers was more improved. But, rather the excessive amount of the acidifier addition reduced the dissolution rate.

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References

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