YAKHAK HOEJI (약학회지)

The Pharmaceutical Society of Korea (대한약학회)
권호 표지

The Relationship of in vitro Dissolution and Intestinal Membrane Permeability with in vivo Bioavailability

시험관내 용출 및 장관막 투과도와 생체이용률과의 상관성

  • 서수경 (국립독성연구소 약리부) ;
  • 손수정 (국립독성연구소 약리부) ;
  • 박인숙 (국립독성연구소 약리부) ;
  • 최기환 (국립독성연구소 약리부) ;
  • 김순선 (국립독성연구소 약리부) ;
  • 유태무 (국립독성연구소 약리부) ;
  • 조혜영 (전남대학교 약학대학/약품개발연구소) ;
  • 이용복 (전남대학교 약학대학/약품개발연구소) ;
  • 김동섭 (국립독성연구소 약리부)
  • Published : 2000.10.01
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Abstract

A biopharmaceutics drug classification system for correlation between in vitro dissolution and in vivo bioavailability is proposed based on recognizing that drug dissolution and gastrointestinal permeability are the fundamental parameters controlling the rate and extent of drug absorption. The objective of this study was to assess whether in vitro dissolution profiles of immediate-release beta-blocker tablets can be correlated with intestinal membrane permeability and/or in vivo bioavailability In vitro dissolution of the beta-blocker tablets was examined using KP VII Apparatus II methods at various pH. Intestinal membrane permeability was determined in vitro using the diffusion chamber method. Bioavailablity parameters were cited from literatures. The dissolution profiles did not accurately represent the in vivo bioavailablity However there were good correlations between intestinal membrane permeability and log P (noctanol/buffer). The correlations obtained in this study indicated that in vitro diffusion chamber method could be used to predict intestinal absorption in vivo.

Keywords

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