A pharmacokinetic study with the high-dose anticancer agent menadione in rabbits

Oliver Yoa Pu Hu, Chih Yuan Wu, Win Kai Chan, Felicia Y.H. Wu, Jacqueline Whang-Peng

研究成果: 雜誌貢獻文章同行評審

9 引文 斯高帕斯(Scopus)

摘要

The aim of this investigation was to assess the pharmacokinetic properties of high-dose menadione (VK3), as an anticancer agent, in plasma and red blood cells (RBCs) in rabbits. An extremely high dose of 75 mg menadiol sodium diphosphate (Synkayvite) was intravenously injected. HPLC analysis was applied to measure the major metabolite, menadione, VK3. The kinetic properties of VK3 in both plasma and red blood cells showed a short elimination half-life, high clearance, and large volume of distribution in plasma and RBCs. The mean elimination t( 1/4 ) values of menadione in plasma and in RBCs were 27.17 ± 10.49 min and 35.22 ± 11.82 min, respectively. The plasma clearance (CL/F) of VK3 was 0.822 ± 0.254 L min-1. The systemic clearance in RBCs was 0.407 ± 0.152 L min-1. The apparent volume of distribution (V(d)/F) in plasma was 30.833 ± 12.835 L and that in RBCs 20.488 ± 9.401 L. The plasma AUC was 32.453 ± 9.785 μg min mL-1 and that of RBCs 67.219 ± 24.449 μg min mL-1. Menadiol was rapidly biotransformed to menadione in blood. The formation rate constant (k(f)) of menadione in plasma was 0.589 ± 0.246 min-1, and that of RBCs 1.520 ± 1.345 min-1. Through this study the estimated menadione dosage needed to maintain a plasma level of 1 μg mL-1 for anticancer purposes was 19.7 mg kg-1 every hour.
原文英語
頁(從 - 到)493-499
頁數7
期刊Biopharmaceutics and Drug Disposition
17
發行號6
DOIs
出版狀態已發佈 - 8月 1 1996
對外發佈

ASJC Scopus subject areas

  • 藥理
  • 藥學科學
  • 藥學(醫學)

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