What is the appropriate hydrocortisone dosing regimen for an adult experiencing adrenal crisis? | Rounds What is the appropriate hydrocortisone dosing regimen for an adult experiencing adrenal crisis? | Rounds
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What is the appropriate hydrocortisone dosing regimen for an adult experiencing adrenal crisis?

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Last updated: July 14, 2026 · View editorial policy

Adrenal crisis hydrocortisone dosing regimen

Adult patients with suspected adrenal crisis should receive immediate parenteral hydrocortisone 100 mg (IV or IM). [1] After the initial dose, hydrocortisone 200 mg per 24 hours should be administered (preferably by continuous IV infusion, or as divided IV/IM injections of 50 mg every 6 hours) until clinical recovery and specialist guidance. [1][2]

Medication administration sequence

  • Immediate dose: hydrocortisone 100 mg IV or IM. [1][2]
  • Maintenance for first 24 hours: hydrocortisone 200 mg/24 hours. [1][2]
  • Route options for maintenance:
  • Continuous IV infusion hydrocortisone 200 mg over 24 hours. [1][2]
  • Alternative bolus regimen: hydrocortisone 50 mg IV or IM every 6 hours (total 200 mg/24 hours). [1][2]

Treatment initiation thresholds

Hydrocortisone should be administered as soon as adrenal crisis is suspected rather than waiting for diagnostic confirmation. [2]

Duration of high-dose glucocorticoid therapy

High-dose hydrocortisone should be continued until clinical recovery and further guidance from an endocrinologist or specialist team. [1][2]

Common pitfalls to avoid

  • Delayed administration of parenteral hydrocortisone after suspicion of adrenal crisis should be avoided. [2]
  • Inadequate total daily glucocorticoid dosing should be avoided. [1]

Safety note on dosing

The recommended adrenal crisis regimen specifies a total hydrocortisone dose of 200 mg over 24 hours after the initial 100 mg parenteral bolus. [1][2]

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