Uses of injection hydrocortisone

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Here is a thorough, textbook-backed overview of the uses of injection hydrocortisone (hydrocortisone sodium succinate - Solu-Cortef):

Injection Hydrocortisone - Clinical Uses

Hydrocortisone is the pharmaceutical preparation of cortisol, the body's natural glucocorticoid. When given by injection (IV or IM), it acts rapidly as both a glucocorticoid and (to a lesser degree) a mineralocorticoid, making it the preferred agent in acute life-threatening situations.

1. Acute Adrenal Insufficiency (Addisonian Crisis)

The most urgent and classic indication. Patients in adrenal crisis present with severe hypotension, vomiting, and collapse. IV hydrocortisone (100 mg bolus, then 50-100 mg Q6-8h) is life-saving and the treatment of choice, as it replaces both glucocorticoid and mineralocorticoid activity. - The Harriet Lane Handbook, 23rd ed.

2. Status Asthmaticus

When acute severe asthma does not respond to bronchodilators, IV hydrocortisone is given to reduce airway inflammation:

Children: Load 4-8 mg/kg IV (max 250 mg), then 8 mg/kg/24h IV
Adults: 100-500 mg IV Q6h
The Harriet Lane Handbook, 23rd ed.

3. Anaphylaxis / Severe Allergic Reactions

Hydrocortisone is used as second-line therapy (after epinephrine) in anaphylaxis to prevent or reduce the biphasic reaction:

Adults: 250-500 mg IV
Children: 5-10 mg/kg IV (max 500 mg) It is part of the standard drug treatment table for anaphylaxis alongside antihistamines. - Tintinalli's Emergency Medicine, 10th ed.

4. Septic Shock (Refractory / Relative Adrenal Insufficiency)

IV hydrocortisone (50 mg bolus or 200 mg/day) is considered in patients with vasopressor-refractory septic shock, particularly when relative adrenal insufficiency (cortisol rise <9 µg/dL post-ACTH) is suspected. Evidence is mixed - it improves hemodynamics and may allow vasopressor weaning, but mortality benefit is most consistent when fludrocortisone is added. - Washington Manual of Medical Therapeutics; Schwartz's Principles of Surgery, 11th ed.

5. Anti-inflammatory / Immunosuppressive Therapy

For conditions requiring rapid parenteral corticosteroid effect when oral therapy is not possible:

Children: 1-5 mg/kg/24h IM/IV
Adolescents/Adults: 15-240 mg/dose Q12h IM/IV
The Harriet Lane Handbook, 23rd ed.

Conditions include:

Severe autoimmune conditions (e.g., lupus flare, vasculitis)
Inflammatory bowel disease (Crohn's, ulcerative colitis - acute flares)
Severe dermatological conditions (pemphigus, erythema multiforme major)
Acute organ transplant rejection

6. Intra-articular Injection

Hydrocortisone acetate can be injected directly into joints for local anti-inflammatory effect in:

Osteoarthritis (knee, hip, thumb CMC joint)
Rheumatoid arthritis flares
Crystal arthropathies (gout, pseudogout)
Soft tissue inflammation (bursitis, tendinitis)
Rheumatology, 2-Volume Set (Elsevier, 2022)

7. Surgical / Physiologic Stress Coverage

Patients on chronic steroids or with known adrenal insufficiency require "stress dose" hydrocortisone peri-operatively to prevent adrenal crisis during surgery. - Campbell's Operative Orthopaedics, 15th ed., 2026

8. Cerebral Edema (Vasogenic)

IV corticosteroids (including hydrocortisone) are used acutely in vasogenic cerebral edema, such as that surrounding brain tumors or abscesses, though dexamethasone is more commonly preferred here due to longer half-life and less mineralocorticoid effect.

9. Spinal Cord Injury (Historical Use)

High-dose IV methylprednisolone was historically used; hydrocortisone has been used in a similar context but this indication is now largely abandoned.

Key Pharmacology Points

Half-life: 60-90 minutes in plasma (may extend in stress, hypothyroidism, liver disease)
Binding: ~90% bound to corticosteroid-binding globulin (CBG) normally; free fraction rises sharply above 20-30 mcg/dL
Dosage forms for injection: Hydrocortisone sodium succinate (Solu-Cortef) - 100, 250, 500, 1000 mg vials (water-soluble, suitable for IV); hydrocortisone acetate - slow-release, suitable for intra-articular/soft tissue use
Katzung's Basic and Clinical Pharmacology, 16th ed.

Summary Table

Indication	Route	Dose (Adult)
Adrenal crisis	IV bolus	100 mg stat, then Q6-8h
Status asthmaticus	IV	100-500 mg Q6h
Anaphylaxis	IV	250-500 mg
Septic shock	IV infusion	200 mg/day
Anti-inflammatory	IV/IM	15-240 mg Q12h
Intra-articular	Intra-articular	25-50 mg per joint
Surgical stress cover	IV/IM	50-100 mg Q8h peri-op

Hydrocortisone is preferred over synthetic glucocorticoids (dexamethasone, methylprednisolone) when mineralocorticoid activity is also needed (e.g., adrenal crisis), since it retains significant mineralocorticoid potency. For purely anti-inflammatory use without salt retention, dexamethasone or methylprednisolone are often chosen instead.

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