Model-Based Comparative Analysis of Rifampicin and Rifabutin Drug-Drug Interaction Profile

Author:

Tuloup Vianney12,France Mathilde1,Garreau Romain12,Bleyzac Nathalie1,Bourguignon Laurent123,Tod Michel123,Goutelle Sylvain123ORCID

Affiliation:

1. Hospices Civils de Lyon, Groupement Hospitalier Nord, Service de Pharmacie, Lyon, France

2. Université Lyon, Université Lyon 1, UMR CNRS 5558, Laboratoire de Biométrie et Biologie Evolutive, Villeurbanne, France

3. Université Lyon, Université Lyon 1, ISPB, Faculté de Pharmacie de Lyon, Lyon, France

Abstract

Rifamycins are widely used for treating mycobacterial and staphylococcal infections. Drug-drug interactions (DDI) caused by rifampicin (RIF) are a major issue. We used a model-based approach to predict the magnitude of DDI with RIF and rifabutin (RBT) for 217 cytochrome P450 (CYP) substrates. On average, DDI caused by low-dose RIF were twice as potent as those caused by RBT. Contrary to RIF, RBT appears unlikely to cause severe DDI, even with sensitive CYP substrates.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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