Pediatric Acetaminophen Dosing 

Updated: Sep 15, 2015
  • Author: Abimbola Farinde, PharmD, PhD; more...
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Pediatric Acetaminophen Dosing

Pediatric acetaminophen (eg, Children's Tylenol)

When possible, dose acetaminophen based on a child’s weight, using 10-15 mg/kg/dose. Give PO every 4-6 hours and do not exceed more than 5 doses (2.6 g) in 24 hours. When weight is unknown, the following guidelines based on age may be used. [1]

Age 0-3 months (weight, 6-11 lbs [2.7-5.3 kg])

  • Dose: 40 mg/dose
  • Oral suspension (160 mg/5 mL): 1.25 mL

Age 4-11 months (weight, 12-17 lbs [5.4-8.1 kg])

  • Dose: 80 mg/dose
  • Oral suspension (160 mg/5 mL): 2.5 mL

Age 12-23 months (weight, 18-23 lbs [8.2-10.8 kg])

  • Dose: 120 mg/dose
  • Oral suspension (160 mg/5 mL): 3.75 mL
  • Chewable tablets (80 mg/tab): 1.5 tablets

Age 2-3 years (weight, 24-35 lbs [10.9-16.3 kg])

  • Dose: 160 mg/dose
  • Oral suspension (160 mg/5 mL): 5 mL
  • Chewable tablets (80 mg/tab): 2 tablets
  • Chewable tablets (160 mg/tab): 1 tablet

Age 4-5 years (weight, 36-47 lbs [16.4-21.7 kg])

  • Dose: 240 mg/dose
  • Oral suspension (160 mg/5 mL): 7.5 mL
  • Chewable tablets (80 mg/tab): 3 tablets
  • Chewable tablets (160 mg/tab): 1.5 tablets

Age 6-8 years (weight, 48-59 lbs [21.8-27.2 kg])

  • Dose: 320 mg/dose
  • Oral suspension (160 mg/5 mL): 10 mL
  • Chewable tablets (80 mg/tab): 4 tablets
  • Chewable tablets (160 mg/tab): 2 tablets

Age 9-10 years (weight, 60-71 lbs [27.3-32.6 kg])

  • Dose: 400 mg/dose
  • Oral suspension (160 mg/5 mL): 12.5 mL
  • Chewable tablets (80 mg/tab): 5 tablets
  • Chewable tablets (160 mg/tab): 2.5 tablets

Age 11-12 years (weight, 72-95 lbs [32.7-43.2 kg])

  • Dose: 480 mg/dose
  • Oral suspension (160 mg/5 mL): 15 mL
  • Chewable tablets (80 mg/tab): 6 tablets
  • Chewable tablets (160 mg/tab): 3 tablets