Dexamethasone
Adults 6 mg (oral or intravenous) once daily for 10 days. If there is a clear indication to stop early, including discharge from hospital, the 10 day course need not be completed.
IV administration should only be used where tablets or oral solution are not appropriate or not available.
Once the oral route is available, re-prescribe the drug with the oral dose (i.e. cannot prescribe the same dose as oral/IV ).
When prescribing dexamethasone, consult the manufacturer’s information.
Alternative options (if dexamethasone unsuitable or unavailable)
Prednisolone:
40mg orally once daily for 10 days (preferred in pregnancy – see link to RCOG guidance below)
Hydrocortisone:
Adults: 50mg given intravenously every 8 hours for 10 days. A longer duration (up to 28 days) can be considered in patients with septic shock (as per REMAP-CAP trial).
Other factors
- Consider the risk of bleeding if on concurrent anticoagulation/ antiplatelet/ other pro-haemorrhagic therapy (particularly in the elderly) and need for gastric ulcer protection with proton pump inhibitors according to local policy.
- Monitor blood glucose levels.
Dosage in pregnancy
Follow Royal College of Obstetrics and Gynaecology guidance
Dosage for children with a greater than 44-week corrected gestational age
- Dexamethasone: 150 micrograms/kg (as a base) orally, nasogastrically or intravenously once a day for 10 days (max 6 mg)
- Prednisolone: 1 mg/kg orally, nasogastrically or intravenously once a day for 10 days (max 40 mg; doses can be rounded as per routine clinical practice) For patients able to swallow and in whom there are no significant concerns about enteral absorption, prescribe tablets. Only use intravenous administration when tablets or oral solutions are inappropriate or unavailable.
Dosage for preterm babies with a corrected gestational age of less than 44 weeks
Seek specialist advice.