Potentiated by CYP3A4 inhibitors (eg, ketoconazole, macrolides), cyclosporine, estrogens. Antagonized by CYP3A4 inducers (eg, barbiturates, phenytoin, carbamazepine ...

Dexamethasone phosphate (as sodium); 4mg/mL, 10mg/mL; soln for IV or IM inj; contains sulfites. Potentiated by CYP3A4 inhibitors (eg, ketoconazole, macrolides), cyclosporine, estrogens ...