Effects of esomeprazole on the pharmacokinetics of atazanavir and fosamprenavir in a patient with human immunodeficiency virus infection.

Abstract:

:The effects of proton pump inhibitors on the pharmacokinetics of atazanavir and amprenavir (administered as fosamprenavir) were rigorously evaluated in healthy volunteers in two studies, but formal studies in persons infected with human immunodeficiency virus (HIV) are lacking. We describe a 65-year-old man with HIV who underwent a 12-hour intensive pharmacokinetic study while receiving esomeprazole with atazanavir-ritonavir and subsequently, an 8-hour study while receiving esomeprazole with fosamprenavir-ritonavir. Consistent with the data in healthy volunteers, a major interaction between esomeprazole and atazanavir-ritonavir was observed in this patient-marked reductions in atazanavir trough plasma concentration and in the area under the concentration-time curve from 0-24 hours-whereas an interaction between esomeprazole and fosamprenavir-ritonavir was not apparent in this patient.

journal_name

Pharmacotherapy

journal_title

Pharmacotherapy

authors

Kiser JJ,Lichtenstein KA,Anderson PL,Fletcher CV

doi

10.1592/phco.26.4.511

subject

Has Abstract

pub_date

2006-04-01 00:00:00

pages

511-4

issue

4

eissn

0277-0008

issn

1875-9114

journal_volume

26

pub_type

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