7.6 Inhibitors of Cytochrome P450 and P-gp Efflux Transporter In a drug interaction study using the strong dual CYP and P-gp inhibitor ketoconazole, a 1.7-fold increase of maximum plasma concentrations and AUC was observed [see Clinical Pharmacology (12.3) ] .
Source: FDA drug label - olodaterol respimat inhalation spray