SETELDOC • MALAYSIAN PRIMARY CARE

Prednisolone Dose Calculator
for Acute Asthma

Weight-based oral prednisolone dosing for acute asthma exacerbations in children, adolescents and adults.

✓ Acute asthma ✓ Paediatric + adult ✓ mg + mL calculation

Use this prednisolone dose calculator for a short course of oral corticosteroid in an acute asthma exacerbation. The calculated dose is limited by the appropriate age-specific maximum.

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Prednisolone for acute asthma

Oral

Acute asthma only: prednisolone doses differ substantially for other conditions such as nephrotic syndrome, autoimmune disease, croup and haematological disorders.

Clinical assessment remains essential. Systemic corticosteroids should be used when indicated by the severity and clinical course of the asthma exacerbation. Escalate patients with respiratory distress, hypoxia, exhaustion, silent chest, altered consciousness or poor response to initial bronchodilator therapy.

Age

Weight (kg) Use current body weight for children.

Dose

Syrup concentration

QUICK REFERENCE

Prednisolone dosing in acute asthma

Age	Dose	Maximum	Duration
<2 years	1–2 mg/kg/day	10 mg/day	3–7 days
2–5 years	1–2 mg/kg/day	20 mg/day	3–7 days
6–11 years	1–2 mg/kg/day	30–40 mg/day	3–7 days
12–17 years	1–2 mg/kg/day	40–50 mg/day	5–7 days
Adult	0.5–1 mg/kg/day ideal body weight	50 mg/day	5–7 days

For children aged 6–11 years, the Malaysian Paediatric Protocol lists a maximum daily dose range of 30–40 mg. This calculator uses 40 mg/day as the automatic upper ceiling.

CLINICAL USE

Oral corticosteroid in acute asthma

⚡

Give early when indicated

Systemic corticosteroids are most useful when started promptly in a clinically significant asthma exacerbation, particularly when response to initial bronchodilator treatment is inadequate.

🫁

Continue asthma therapy

A short oral steroid course treats the exacerbation. Review inhaled corticosteroid therapy, reliever use, adherence, spacer technique and the precipitating factor.

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Recognise severe disease

Hypoxia, severe respiratory distress, exhaustion, silent chest, poor air entry, altered consciousness or deteriorating observations require escalation.

CAUTIONS

Before prescribing

Confirm indication This calculator is designed for acute asthma only. Do not reuse this regimen for other prednisolone indications.

Adult weight The adult MOH asthma CPG describes dosing according to ideal body weight, with a maximum of 50 mg daily.

Infection Corticosteroids may mask signs of infection. Review possible bacterial, viral or other alternative diagnoses where clinically relevant.

Diabetes Systemic corticosteroids can increase blood glucose. Consider monitoring in patients with diabetes or significant hyperglycaemia risk.

Repeated courses Frequent oral corticosteroid bursts should prompt review of asthma control, adherence, inhaler technique and the need for treatment escalation.

Prolonged steroid exposure Do not apply short-course stopping advice to prolonged treatment or patients with clinically relevant recent systemic corticosteroid exposure.

COMMON QUESTIONS

Prednisolone acute asthma FAQ

What dose does the calculator use for children?

The calculator allows either 1 mg/kg/day or 2 mg/kg/day and applies the Malaysian Paediatric Protocol age-specific maximum daily dose.

What dose does it use for adults?

For adults, the available options are 0.5 mg/kg/day or 1 mg/kg/day. The adult MOH asthma CPG specifies ideal body weight and a maximum of 50 mg daily.

Does a short prednisolone course need tapering?

The adult MOH asthma CPG states that a 5–7 day course for an acute asthma exacerbation can be stopped without gradual dose reduction. Prolonged or repeated systemic corticosteroid exposure requires individual assessment.

Can I use this calculator for croup?

No. The calculator is specifically for acute asthma. Croup uses a different corticosteroid regimen.

Which syrup concentrations are included?

The calculator includes 5 mg/5 mL, 3 mg/5 mL and 2.5 mg/5 mL oral prednisolone formulations.

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Weight (kg)

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Clinical references

Ministry of Health Malaysia. Paediatric Protocols for Malaysian Hospitals, 5th Edition.
Ministry of Health Malaysia. Management of Asthma in Adults, Second Edition.
Formulari Ubat KKM: Prednisolone oral syrup and tablet formulations.
National Pharmaceutical Regulatory Agency: Malaysian registered prednisolone oral syrup products.

For healthcare professionals. This calculator supports but does not replace clinical judgement. Verify the diagnosis, indication, formulation, contraindications and current clinical guidance before prescribing.

Prednisolone Dose Calculator for Acute Asthma