Fig. 2From: Serum concentrations of clarithromycin and rifampicin in pulmonary Mycobacterium avium complex disease: long-term changes due to drug interactions and their association with clinical outcomesRelationship between CYP3A4 activity and serum rifampicin or its metabolite concentrations for the initial period. Time course of serum concentrations of rifampicin (RFP, □) and 25-desacetyl-RFP (DR, ◊), and the ratio of urinary 6β-hydroxycortisol/cortisol (6βOHF/F, ♦) up to day 29 (n = 9, mean ± SE). *P < 0.05 compared with each initial valueBack to article page