Delayed effect of grapefruit juice on pharmacokinetics and pharmacodynamics of tacrolimus in a living-donor liver transplant recipient.

Sachio Fukatsu, Masahide Fukudo, Satohiro Masuda, Ikuko Yano, Toshiya Katsura, Yasuhiro Ogura, Fumitaka Oike, Yasutsugu Takada, Ken ichi Inui

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Tacrolimus is a calcineurin inhibitor that has been widely used to prevent allograft rejection after transplantation. We report a case of a living-donor liver transplant recipient experiencing a considerable increase in the trough blood concentration of tacrolimus after concomitant ingestion of grapefruit juice (250 mL) 4 times for 3 days. The trough blood concentrations of tacrolimus were not changed during or immediate after the repeated intake of grapefruit juice. However, almost 1 week after the final ingestion, the blood concentration of tacrolimus markedly increased to as much as 47.4 ng/mL from 4.7 ng/mL before the ingestion, resulting in a profound reduction of calcineurin phosphatase activity in peripheral blood mononuclear cells. Furthermore, headache and nausea, but not nephrotoxicity or hyperglycemia, took place throughout the period of the elevated blood concentrations. Grapefruit juice may have a clinically significant effect on the pharmacokinetics and pharmacodynamics of tacrolimus. It is recommended to avoid the consumption of grapefruit juice in transplant recipients treated with tacrolimus.

Original languageEnglish
Pages (from-to)122-125
Number of pages4
JournalDrug metabolism and pharmacokinetics
Volume21
Issue number2
DOIs
Publication statusPublished - Apr 2006

Fingerprint

Citrus paradisi
Living Donors
Tacrolimus
Pharmacokinetics
Liver
Eating
Graft Rejection
Hyperglycemia
Nausea
Allografts
Headache
Transplant Recipients
Blood Cells

All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Pharmaceutical Science
  • Pharmacology (medical)

Cite this

Delayed effect of grapefruit juice on pharmacokinetics and pharmacodynamics of tacrolimus in a living-donor liver transplant recipient. / Fukatsu, Sachio; Fukudo, Masahide; Masuda, Satohiro; Yano, Ikuko; Katsura, Toshiya; Ogura, Yasuhiro; Oike, Fumitaka; Takada, Yasutsugu; Inui, Ken ichi.

In: Drug metabolism and pharmacokinetics, Vol. 21, No. 2, 04.2006, p. 122-125.

Research output: Contribution to journalArticle

Fukatsu, Sachio ; Fukudo, Masahide ; Masuda, Satohiro ; Yano, Ikuko ; Katsura, Toshiya ; Ogura, Yasuhiro ; Oike, Fumitaka ; Takada, Yasutsugu ; Inui, Ken ichi. / Delayed effect of grapefruit juice on pharmacokinetics and pharmacodynamics of tacrolimus in a living-donor liver transplant recipient. In: Drug metabolism and pharmacokinetics. 2006 ; Vol. 21, No. 2. pp. 122-125.
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