The change of pharmacokinetics of fexofenadine enantiomers through the single and simultaneous grapefruit juice ingestion

Yumiko Akamine, Masatomo Miura, Hisakazu Komori, Ikumi Tamai, Ichiro Ieiri, Norio Yasui-Furukori, Tsukasa Uno

研究成果: Contribution to journalArticle査読

18 被引用数 (Scopus)

抄録

The stereoselective pharmacokinetics of fexofenadine are associated with OATP2B1-mediated transport, and grapefruit juice (GFJ) is an inhibitor of OATP2B1. Therefore, in this study, we aimed to investigate whether and to what extent GFJ ingestion affected the pharmacokinetics of fexofenadine enantiomers in healthy subjects. In a randomized, two-phase, open-label, crossover study, 14 subjects received 60 mg of racemic fexofenadine simultaneously with water or GFJ. Ingestion of GFJ significantly decreased the areas under the plasma concentration-time curve (AUC0-24) for (R)- and (S)-fexofenadine by 39% and 52%, respectively. Subsequently, GFJ increased the mean R/S ratio of the AUC0-24 from 1.58 to 1.96 (P < 0.05). Although GFJ greatly reduced the amounts of (R)- and (S)-fexofenadine excreted into the urine (Ae0-24) by 52% and 61%, respectively, the mean R/S ratios of Ae0-24 and the renal clearances of both enantiomers were unchanged between the control and GFJ phases. GFJ, an OATP2B1 inhibitor, significantly reduced the plasma concentrations of fexofenadine enantiomers, exhibiting clinically moderate effects. The present results suggested that changes in OATP2B1 activity by GFJ may alter the stereoselective pharmacokinetics of fexofenadine and that reduced intestinal OATP2B1 activity may affect the stereoselectivity of fexofenadine.

本文言語英語
ページ(範囲)352-357
ページ数6
ジャーナルDrug metabolism and pharmacokinetics
30
5
DOI
出版ステータス出版済み - 10 10 2015

All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Pharmaceutical Science
  • Pharmacology (medical)

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