Drug Interaction Report

MONITOR: Coadministration with potent inhibitors of CYP450 3A4 may increase the plasma concentrations of eravacycline, which undergoes oxidation by CYP450 3A4 and flavin monooxygenase. When eravacycline was given with the potent 3A4 inhibitor, itraconazole, eravacycline peak plasma concentration (Cmax) increased by 5% and systemic exposure (AUC) increased by 32%, while clearance decreased by 32%.

MANAGEMENT: These changes are not considered clinically significant alone, but patients with additional risk factors for increased exposure (e.g., obesity, hepatic impairment) should be monitored closely for adverse effects such as nausea, vomiting, diarrhea, headache, photosensitivity, pseudotumour cerebri, increased BUN, acidosis, hyperphosphatemia, pancreatitis, and/or abnormal liver function tests.