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Pediatric Dose Calculator

Enter the dose, weight, and volume in the Pediatric Dose Calculator and estimate the infant/child dosage.

By Weight

By Young’s Rule

By BSA

Dose

By Clark’s Rule:

mg/kg ▾

Infant/Child BSA:

kg ▾

Infant/Child Age

Per:

mg ▾

Mass:

ml ▾

Drug Concentration:

Related

This advanced Pediatric Dose Calculator estimates the pediatric dosage for your child. The tool considers factors like BSA, weight, and dose frequency to suggest the precise medicine volume.

Working of Pediatric Dose Calculator

The Pediatric Dosing Calculator is simple to operate and requires the following inputs:

Input:

Choose the appropriate Pediatric Mode
Enter the dosage and infant weight
Fill in the drug concentration
Select the frequency of the dose
Tap Calculate

Output:

Infant/Child dosage
Administration frequency of the dosage

Pediatric Dosage Calculation Formulas

Our Prednisone pediatric dose calculator uses multiple formulas to estimate the correct dose and volume for infants and children.

Child Dose Based on Weight

Child dose calculation by weight is sensitive as overdosing can cause toxicity. It is derived from adult safe dosages:

Child Dose By Weight (mg/day) = Adult Dose (mg/kg/day) × Child Weight (kg)
Child Dose By Weight (mg/dose) = Adult Dose (mg/kg/dose) × Child Weight (kg)

Note: Growth rates vary, so weight-based dosing should be carefully monitored.

Child Dose Based on Body Surface Area (BSA)

Using BSA provides more precise dosing. The formulas are:

Child Dose (mg/day) = Adult Dose (mg/day) × BSA (m²) / 1.73
If concentration is known in mg/m²: Child Dose (mg/day) = Adult Dose (mg/m²) × BSA (m²)

Child Dose Using Young’s Rule

Young’s Rule estimates pediatric dose based on age:

Child Dose (mg/day) = Adult Dose (mg/day) × [Age / (Age + 12)]

Child Dose Using Clark’s Rule

Clark’s Rule uses proportional body weight (in pounds):

Child Dose (mg/day) = Adult Dose (mg/day) × (Child Weight in Lbs / 150)

Young’s and Clark’s rules are often used for calculating pediatric doses for radioactive medications.

Pediatric Dose Abbreviations

Abbreviation	Dosage Meaning
dQ	Once a day
BID	Twice a day
TID	Three times a day
QID	Four times a day
q4 hr	Once every four hours (6 times/day)
q3 hr	Once every three hours (8 times/day)
q2 hr	Once every two hours (12 times/day)
q1 hr	Once every hour (24 times/day)

The prednisolone pediatric dose calculator can suggest dosage volumes for all these types.

FAQs

How to Convert Dose from mg to mL?

Use the formula: Volume (mL) = Dose (mg) / Concentration (mg/mL)

Common Pediatric Drug Concentrations

Paracetamol	120 mg/5 mL or 250 mg/5 mL
Ibuprofen	100 mg/5 mL or 50 mg/1.25 mL
Amoxicillin	125 mg/5 mL or 250 mg/5 mL

Are 12-Year-Olds Considered Pediatric?

Yes, children up to 12 years of age (and weight ≤ 36 kg) are considered pediatric. The peds dosing calculator can estimate dosage for any pediatric age.

Disclaimer

The calculations provided by this calculator are estimations only. Always consult a healthcare professional before administering medication to a child.

References

Wikipedia: Pediatrics

News-Medical.net: What is Pediatrics?

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