What are the recommended doses of Solucortef (hydrocortisone) for adults in acute adrenal crisis, severe shock, and chronic adrenal insufficiency?

Solucortef (Hydrocortisone) Dosing

Acute Adrenal Crisis – Adults

For acute adrenal crisis in adults, administer 100 mg hydrocortisone IV bolus immediately, followed by continuous IV infusion of 200 mg over 24 hours (or 50 mg IV/IM every 6 hours), plus 1 liter isotonic saline in the first hour. 1, 2

Initial Management

• Give 100 mg hydrocortisone IV or IM as an immediate bolus without waiting for laboratory confirmation 1, 2, 3
• Administer 1 liter of 0.9% saline IV in the first hour to correct hypovolemia 1, 2
• Continue with continuous IV infusion of 200 mg hydrocortisone over 24 hours as the preferred delivery method 1, 2, 4
• Alternatively, give 50 mg hydrocortisone IV or IM every 6 hours if continuous infusion is not feasible 1, 2

Fluid Management

• Adjust saline infusion speed and volume (with 10% glucose if hypoglycemic) based on hemodynamic monitoring 1, 2
• Continue IV fluids for 24–48 hours until hemodynamically stable 1, 2

Transition to Oral Therapy

• Once the patient can tolerate oral intake and is hemodynamically stable, switch to oral hydrocortisone at three times the usual maintenance dose (minimum 60 mg/day) divided into three doses (morning, midday, evening) 1, 2, 5
• Maintain this tripled dose for 48 hours in uncomplicated cases, or up to one week if recovery is complicated 1, 2, 5
• Gradually taper over several days to the normal maintenance dose 1, 2, 5
• Do not restart fludrocortisone until hydrocortisone dose is reduced to <50 mg/day in primary adrenal insufficiency 1, 2, 5

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Acute Adrenal Crisis – Pediatric Patients

In children with adrenal crisis, give weight-based hydrocortisone (≤15 kg → 25 mg; 15–25 kg → 50 mg; >25 kg → 100 mg) IV or IM, plus 0.9% saline 20 mL/kg bolus, repeated up to 60 mL/kg total if shocked. 2

Initial Dosing

• Administer 2 mg/kg hydrocortisone every 6–8 hours IM or SC, or every 6 hours via IV infusion 1
• Alternative weight-based bolus: 25 mg (≤15 kg), 50 mg (15–25 kg), or 100 mg (>25 kg) IV or IM 2

Fluid Resuscitation

• Give 0.9% saline 20 mL/kg IV bolus, repeat up to 60 mL/kg total if circulatory collapse persists 2
• Provide 5% or 10% glucose for hypoglycemia with NaCl 10–15 mEq/kg/day (maximum 408 mEq/day) 1
• Maintenance fluids: newborns 150–180 mL/kg/day; children 2.5–3 L/m²/day 1

Transition to Oral Therapy

• Once oral intake resumes, start 30–50 mg/m²/24 hours oral hydrocortisone and taper to maintenance dose 2
• Triple the normal dose for 48 hours to one week depending on recovery 1, 2

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Severe Shock (Septic Shock)

In septic shock unresponsive to fluids and moderate-to-high-dose vasopressors (>0.1 μg/kg/min norepinephrine), give IV hydrocortisone <400 mg/day for at least 3 days at full dose. 6

Dosing Regimen

• Administer 50 mg IV hydrocortisone every 6 hours (total 200 mg/day) 6
• Continue for ≥3 days at full dose, or longer if shock persists 6
• This low-dose, long-duration regimen is superior to high-dose, short-course therapy 6

Evidence Considerations

• Corticosteroids significantly reduce 28-day mortality and accelerate shock reversal in refractory septic shock 6
• Hydrocortisone boluses and infusions are more effective than methylprednisolone for shock reversal 6
• Monitor for hyperglycemia and hypernatremia; no increased risk of superinfection or GI bleeding at these doses 6

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Perioperative Stress Dosing – Adults

For major surgery under general or regional anesthesia, give 100 mg hydrocortisone IV at induction, followed by continuous infusion of 200 mg over 24 hours (or 50 mg IV/IM every 6 hours) until the patient resumes eating. 7, 2

Major Surgery Protocol

• Administer 100 mg hydrocortisone IV at induction 7, 2
• Continue 200 mg/24 hours by continuous IV infusion (or 50 mg IV/IM every 6 hours) 7, 2
• Maintain until oral intake resumes, then switch to double oral dose for 48 hours (or up to one week for complicated recovery) 7, 2
• Gradually taper to maintenance dose over several days 7, 2

Minor to Moderate Surgery

• Give 25–75 mg hydrocortisone per 24 hours for 1–2 days 2
• Resume normal oral dose once recovery is uncomplicated 2

Labor and Delivery

• Vaginal delivery: 100 mg IV hydrocortisone at onset of labor, followed by 200 mg/24 hours continuous infusion (or 100 mg IM then 50 mg IM every 6 hours); double oral dose for 24 hours after delivery 7, 2
• Cesarean section: 100 mg IV at start of procedure, then double oral dose for 48 hours to one week 7, 2

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Chronic Maintenance Therapy – Adults

For chronic adrenal insufficiency, use hydrocortisone 15–25 mg/day for primary adrenal insufficiency (Addison's disease) or 10–20 mg/day for secondary adrenal insufficiency, divided into 2–3 doses with the highest dose in the morning. 1, 2

Dosing Strategy

• Primary adrenal insufficiency: 15–25 mg/day hydrocortisone 1, 2, 8
• Secondary adrenal insufficiency: 10–20 mg/day hydrocortisone (lower dose due to preserved mineralocorticoid function) 1
• Divide into 2–3 administrations per day, with the largest dose in the morning to mimic circadian rhythm 1, 2

Mineralocorticoid Replacement (Primary AI Only)

• Add fludrocortisone 100 μg/day (range 50–300 μg/day) for primary adrenal insufficiency 1, 2, 8
• Monitor blood pressure, plasma renin (target upper-normal range), and electrolytes 1, 2
• Do not use fludrocortisone in secondary adrenal insufficiency 1, 2

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Chronic Maintenance Therapy – Pediatric Patients

In children with primary adrenal insufficiency, use hydrocortisone 8–15 mg/m²/day (10–18 mg/m²/day for congenital adrenal hyperplasia; 20–40 mg/m²/day in neonates during the first month), divided into 2–3 doses. 1, 2

Dosing by Indication

• Primary AI (non-CAH): 8–15 mg/m²/day 1, 2
• Congenital adrenal hyperplasia: 10–18 mg/m²/day 1
• Neonates (first month): 20–40 mg/m²/day 1
• Secondary AI: 8–10 mg/m²/day (lower dose, highest in infants before weaning) 1

Administration

• Divide into 3 doses per day in babies and young children; 2–3 doses in older children 1, 2
• Doses >15–17 mg/m²/day in adolescents or >20 mg/m²/day in infants cause growth suppression and reduced adult height 2

Mineralocorticoid Replacement (Primary AI Only)

• Give fludrocortisone 50–100 μg/day (does not require body-surface-area adjustment) 1, 2
• Add oral sodium chloride 1–2 g/day (≈17–34 mmol) in infants up to 1–2 years of age due to renal mineralocorticoid resistance 1, 2

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Common Pitfalls and Caveats

Do Not Delay Treatment

• Never wait for laboratory confirmation before administering hydrocortisone in suspected adrenal crisis 1, 2, 8
• Clinical improvement after hydrocortisone is the best diagnostic criterion 1

Continuous Infusion vs. Bolus Dosing

• Continuous IV infusion of 200 mg/24 hours is superior to intermittent boluses for maintaining cortisol in the physiological stress range 4
• If continuous infusion is unavailable, use 50 mg IV/IM every 6 hours 1, 2

Fludrocortisone Timing

• Do not restart fludrocortisone until hydrocortisone is <50 mg/day, because high-dose hydrocortisone provides sufficient mineralocorticoid activity 1, 2, 5

Avoid Abrupt Discontinuation

• After >48–72 hours of high-dose therapy or >14 days of any glucocorticoid, taper gradually to prevent precipitating adrenal crisis 2, 3

Etomidate Risk

• Avoid etomidate for rapid sequence intubation in patients with known or suspected adrenal insufficiency, as it acutely suppresses cortisol synthesis and can precipitate adrenal crisis 9
• If etomidate is unavoidable, administer 100 mg hydrocortisone IV immediately before or after induction 9

Hypernatremia with Prolonged High-Dose Therapy

• When high-dose hydrocortisone (>200 mg/day) must continue >48–72 hours, consider switching to methylprednisolone, which causes less sodium retention 3

Patient Education and Emergency Preparedness

• All patients must carry an emergency steroid card and an injectable hydrocortisone kit (100 mg IM) 2, 8, 10
• Train patients and families to recognize adrenal crisis signs (hypotension, severe fatigue, nausea/vomiting, altered mental status) and self-administer IM hydrocortisone 2, 8, 10
• Instruct patients to double or triple oral hydrocortisone during febrile illness (≥38°C → double; ≥39°C → triple) for 2–3 days 2, 10