Oral dexamethasone doses only require dilution when doses smaller than or equal to 0.1mg are administered, to ensure accuracy of dose.

Do you dilute dexamethasone im injection?

Dexamethasone 3.3 mg/ml Solution for Injection can be diluted with Sodium Chloride Injection BP or Glucose Injection BP. Cerebral oedema associated with neoplasm: An initial dose of 8.3 mg (2.5 ml) IV followed by 3.3 mg (1.0 ml) IM every 6 hours until the symptoms of oedema subside (usually after 12 to 24 hours).

How do you administer Decadron IM?

IM: Administer 4 mg/mL or 10 mg/mL concentration by deep IM injection. Intra-articular or soft tissue injection: Note: Dexamethasone sodium phosphate (a short-acting solution) is the only formulation available for intra-articular or soft tissue injections in the United States or Canada.