Betamethasone acetate 3mg/mL; for IM, intra-articular or intralesional inj. Potentiated by CYP3A4 inhibitors (eg, ketoconazole, macrolides), cyclosporine, estrogens. Antagonized by CYP3A4 inducers ...

Two milliliters of betamethasone sodium phosphate-betamethasone acetate suspension (containing betamethasone 6 mg [as the sodium phosphate] and betamethasone acetate 6 mg) i.m. every 24 hours ...