“…52 Tapering is not necessary for short (even 10-day) courses of therapy. 92 Dexamethasone syrup has a longer physiologic half-life than prednisone, and a 2-day course of this medication, at a dose of 0.15 mg/kg, 93 may therefore be just as effective as 5 days of treatment with prednisone. In patients with mild to moderate exacerbations, a single dose of dexamethasone of 0.6 mg/kg may be similarly effective.…”