Clinical Uses of Cortef (Hydrocortisone)
Cortef is primarily used for glucocorticoid replacement therapy in adrenal insufficiency and as stress-dose coverage during illness or surgery, with additional applications in inflammatory and immunosuppressive conditions. 1
Primary Indications
Adrenal Insufficiency Replacement Therapy
For adults with glucocorticoid-induced adrenal insufficiency, the standard physiologic replacement dose is hydrocortisone 15-25 mg daily, typically divided into 2-3 doses (e.g., 10 mg morning, 5 mg midday, 5 mg afternoon). 2 This mimics the body's natural cortisol rhythm.
For primary adrenal insufficiency (PAI) in children, hydrocortisone is the preferred glucocorticoid at 8 mg/m² body surface area daily, divided into 3-4 doses. 3 Synthetic long-acting glucocorticoids like prednisone or dexamethasone should be avoided in children due to growth suppression risks. 3
Stress-Dose Coverage
During moderate to major stress (severe illness, major trauma, surgery under general anesthesia), patients require parenteral hydrocortisone at approximately 40 mg daily (typically 20 mg on rising, 10 mg midday, 10 mg evening) until stress resolves. 2 This represents double the physiologic replacement dose.
For minor stress (fever, infection treated outpatient, minor surgery), patients already taking prednisone-equivalent doses ≥10 mg daily typically don't need extra coverage, but others should increase their glucocorticoid dose temporarily. 2
Adrenal Crisis Management
Suspected adrenal crisis is a life-threatening emergency requiring immediate parenteral glucocorticoids and fluid resuscitation, even before diagnostic confirmation. 2 This can occur in patients on chronic glucocorticoids who experience sudden decreased drug availability (missed doses, vomiting, diarrhea). Treatment takes precedence over diagnostic workup.
Secondary Indications
Inflammatory Conditions
Hydrocortisone has established use in orthopedic inflammatory conditions including:
- Tendinitis and tenosynovitis
- Bursitis
- Carpal tunnel syndrome
- Joint inflammation
- Rheumatoid arthritis 4
Critical Care Applications
For severe community-acquired pneumonia requiring critical care, early hydrocortisone 200 mg/day reduces mortality and intubation rates (excluding influenza, immunosuppression, and aspiration pneumonia). 5 Treatment should be progressively de-escalated over 8-14 days.
For septic shock, evidence supports hydrocortisone use, though optimal dosing remains debated. Recent data suggests 100 mg/day may be sufficient and reduces hyperglycemia risk compared to 200 mg/day. 6
Other Established Uses
Strong evidence supports corticosteroid use in:
- Acute spinal cord injury
- Increased intracranial pressure from brain tumors
- Asthma exacerbations
- Anaphylaxis
- Postoperative antiemesis 7
Critical Safety Considerations
Immunosuppression Risks
Cortef suppresses immune function and increases infection risk with all pathogens. 1 Key concerns include:
- Tuberculosis reactivation: Patients with latent TB require chemoprophylaxis during prolonged therapy 1
- Varicella/measles: Can be fatal in non-immune patients; exposed patients need prophylaxis with immune globulin 1
- Hepatitis B reactivation: Screen before initiating immunosuppressive treatment 1
- Strongyloides: Can cause fatal hyperinfection syndrome; rule out before starting therapy 1
Contraindications
Avoid Cortef in:
- Systemic fungal infections (unless needed to control drug reactions)
- Cerebral malaria
- Active amebiasis (must be ruled out first) 1, 7
Monitoring Requirements
Monitor for hypertension, hyperglycemia, hypokalemia, and calcium loss. 1 Dietary salt restriction and potassium supplementation may be necessary. In children, closely monitor growth velocity, weight, and blood pressure to avoid overtreatment. 3
Pregnancy Considerations
Infants born to mothers receiving substantial corticosteroid doses during pregnancy should be carefully observed for hypoadrenalism. 1
Common Pitfalls
Do not use hydrocortisone suspension and tablets interchangeably—they are not bioequivalent. 8 The reformulated suspension has proven inadequate for controlling congenital adrenal hyperplasia.
Avoid abrupt discontinuation in patients on chronic therapy—this can precipitate adrenal crisis. Always taper gradually and provide stress-dose coverage during intercurrent illness.