Paracetamol dose of 1 year

For a 1-year-old child, the standard paracetamol (acetaminophen) dose is 10-15 mg/kg per dose, given every 4-6 hours as needed, with a maximum of 4 doses in 24 hours.
A typical 1-year-old weighs around 8-12 kg, so a usual dose would be roughly 80-180 mg per dose.
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paracetamol dose 1 year old child mg/kg pediatric

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https://www.nhs.uk/medicines/paracetamol-for-children

Here is a complete, evidence-based summary of paracetamol dosing for a 1-year-old child:

Paracetamol Dose for a 1-Year-Old Child

Weight-Based Dosing (Standard Approach)

ParameterDetails
Dose10-15 mg/kg per dose
FrequencyEvery 4-6 hours as needed
Max doses/day4 doses in 24 hours
Max daily doseThe lesser of 75 mg/kg/day or 4000 mg/day
Min intervalAt least 4 hours between doses
A typical 1-year-old weighs approximately 8-12 kg, so an individual dose would be roughly 80-180 mg.

Age/Suspension-Based Dosing (NHS Guidance)

For the standard infant liquid suspension (120 mg/5 mL):
AgeDose
6-23 months (includes 1-year-olds)5 mL (= 120 mg)
This can be given up to 4 times a day, with at least 4 hours between doses.

Route-Specific Dosing

RouteDose
Oral (PO)10-15 mg/kg every 4-6 hours
Rectal (PR, suppository)10-20 mg/kg every 4-6 hours
IV15 mg/kg every 4-6 hours (if <10 kg, specialist guidance needed)

Important Safety Points

  • Never exceed 4 doses in 24 hours.
  • Dose by weight, not just age - a heavier 1-year-old needs more.
  • In obese children, use adjusted body weight (not total body weight) to avoid toxicity.
  • Hepatotoxicity is associated with overdose - paracetamol has a narrow safety margin if dosing instructions are not followed.
  • For fever after vaccination at 2-3 months: special lower dosing applies; at 1 year, standard dosing is used.
  • Always use the measuring syringe or spoon provided with the liquid formulation.

Sources: Rosen's Emergency Medicine (Table 157.5), NHS paracetamol for children, NHS Scotland Paediatric Calculator
Note: Always confirm dosing with the product label or a pharmacist/physician, especially if the child has liver disease, malnutrition, or is on other medications.

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