Please check your internet connection and try again.
# IV Hydrocortisone for Acute Asthma
## Overview
Intravenous hydrocortisone is a synthetic corticosteroid used as an adjunct therapy in acute asthma exacerbations to reduce airway inflammation.
## Primary Indications
Adjunctive treatment of severe, life-threatening acute asthma exacerbations unresponsive to initial bronchodilator therapy.
## Adult Dosing
* **Initial Dose:** 100 mg IV every 6 to 8 hours.
* **Alternative:** Some protocols may use higher doses, e.g., 4 mg/kg (maximum 200 mg) initially, followed by 1 mg/kg/hr continuous infusion or 100 mg IV every 4-6 hours. Dosing is highly protocol-dependent.
## Pediatric Dosing
* **Dosing is variable and often based on local protocol.**
* **General Guideline:** 1-2 mg/kg IV every 6 to 8 hours. Maximum dose typically 100 mg per dose.
## Dose Adjustments
* No dose adjustments are typically required for hepatic or renal impairment, but prolonged courses should be considered carefully.
## Contraindications
* Hypersensitivity to hydrocortisone or other components.
* Systemic fungal infections.
* Intracranial parasites.
## Adverse Effects
Common: hyperglycemia, insomnia, mood changes, increased appetite.
Less Common/Serious: adrenal suppression, Cushingoid state, immunosuppression, peptic ulceration, osteoporosis (with prolonged use), electrolyte imbalances (e.g., hypokalemia).
## Key Drug Interactions
* **Potassium-depleting agents** (e.g., diuretics, amphotericin B): Increased risk of hypokalemia.
* **CYP3A4 inducers** (e.g., rifampin, phenytoin): May decrease hydrocortisone efficacy.
* **CYP3A4 inhibitors** (e.g., ketoconazole, protease inhibitors): May increase hydrocortisone levels.
* **Vaccines:** Reduced antibody response; avoid live vaccines.
## Monitoring
* Blood glucose levels.
* Electrolytes (especially potassium).
* Signs of infection.
* Clinical response to therapy (respiratory rate, work of breathing, oxygen saturation, wheezing).
* Adrenal function if prolonged use is anticipated.
## Clinical Pearls
* IV hydrocortisone has a relatively slow onset of action and is generally not effective for immediate bronchodilation. It is most effective when given early in the exacerbation.
* Transition to oral corticosteroids as soon as clinically appropriate.
* Use the lowest effective dose for the shortest possible duration.
***
**Disclaimer:** This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always verify current prescribing information and consult with a qualified healthcare provider for any questions regarding medication use.
