Four Seasons Pediatrics

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Acetaminophen Dosing Chart

Dose is every 4-6 hours. For young infants, please call with any fever (defined as a temperature of 100.4 F or higher). Please remember that the goal is comfort, not elimination of fever. Fever is a symptom, not a disease. Acetaminophen and ibuprofen do not eliminate fever, they reduce fever. Fevers under 102 degrees F do not need treatment if your child is comfortable.

Acetaminophen Dosing Chart
Weight Milligram Dosage Children’s liquid and Infants Suspension – 160mg/5ml Children’s soft chews 80mg each Junior strength Caps or chews 160mg each
6-11 lbs 40mg ¼ tsp (1.25ml) N/A N/A
12-17 lbs 80mg ½ tsp (2.5ml) N/A N/A
18-23 lbs 120mg ¾ tsp (3.75ml) N/A N/A
24-35 lbs 160mg 1 tsp (5ml) 2 tablets 1 tablet
36-47 lbs 240mg 1 ½ tsp (7.5ml) 3 tablets 1 ½ tablets
48-59 lbs 325mg 2 tsp (10ml) 4 tablets 2 tablets
60-71 lbs 400mg 2 ½ tsp (12.5ml) 5 tablets 2 ½ tablet
72-95 lbs 480mg 3 tsp (15ml) 6 tablets 3 tablets
96+ lbs 650 mg 4 tsp (20ml) 8 tablets 4 tablets

Dosing chart for Acetaminophen suppositories. You will notice these doses tend to be a little higher than if given orally. This is safe for two reasons:

  1. Suppositories are absorbed less consistently than an oral dose.
  2. Suppositories are meant for short-term use (just while your child can’t tolerate oral intake) and giving a little higher dose for one day will not be harmful.

Doses are every 4-6 hours

Acetaminophen Suppositories Dosing same as above.  They come in 80 mg, 120 mg, 325 mg and 650 mg


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