Recent studies have concluded that both intramuscular dexamethasone and oral dexamethasone are effective treatments, but there are few data directly comparing the two for moderate-to-severe croup.

If your doctor prescribes dexamethasone for your condition, you may receive the drug by intramuscular (IM) or intravenous (IV) injection on the first day of treatment. After this, you’ll take ...

Dexamethasone provided 4 mg at every 6 hours ... A synthetic analog of ACTH, cosyntropin 0.25 mg is administered by the IV or intramuscular route. Cortisol levels are drawn before the dose ...