Calculate safe weight-based doses for common pediatric medicines. Enter weight, select medicine, get instant results.
| Medicine | Dose | Max | Frequency |
|---|---|---|---|
| Paracetamol (Crocin, Calpol) | 15 mg/kg | 500 mg | Q4-6h (4-6 doses/day) |
| Ibuprofen (Brufen, Combiflam) | 10 mg/kg | 400 mg | Q6-8h (3-4 doses/day) |
| Amoxicillin (Mox, Novamox) | 25 mg/kg | 500 mg | Q8h (3 doses/day) |
| Azithromycin (Azee, Zithromax) | 10 mg/kg | 500 mg | OD x 3-5 days |
| Cetirizine (Alerid, Zyrtec) | 0.25 mg/kg | 10 mg | OD (bedtime) |
| Ondansetron (Emeset, Perinorm) | 0.15 mg/kg | 8 mg | Q8h (3 doses/day) |
| Zinc (WHO ORS protocol) | 0.5 mg/kg | 20 mg | OD x 10-14 days |
| ORS (Electral) - ml/kg | 75 mg/kg | 1000 mg | Over 4 hours (dehydration) |
Eliminate mental math and calculate safe, weight-based child medication dosages in four steps.
Designed to prevent toxic overdosing and ineffective underdosing in infants and young children.
Answers to common questions about using the pediatric dose calculator.
Children vary substantially in body weight and organ maturation even at identical ages. Weight-based dosing (mg/kg) ensures that plasma drug concentrations remain within the effective therapeutic window without causing toxicity.
The tool automatically caps dosages at the adult maximum limit (e.g. 500 mg per single dose for Paracetamol). A child should never be prescribed more than the standard adult maximum dose regardless of body weight.
Yes. Infant drops are often concentrated (e.g., 100 mg/mL), whereas child suspensions are typically 125 mg/5 mL or 250 mg/5 mL. You can adjust both the concentration (mg) and the volume (mL) in the inputs to match your exact product packaging.
The calculator includes quick preset dosing rules for 8 common outpatient medications: Paracetamol, Ibuprofen, Amoxicillin, Azithromycin, Cetirizine, Ondansetron, Cephalexin, and Cefixime, along with customizable dosage and syrup concentration fields.