Medication Dosing

Avoid dosing mistakes! Do not buy the "infant" version of acetaminophen or ibuprofen.

The infant version of acetaminophen (Tylenol) is exactly the same medication as the children's version, but they charge you more for a tiny bottle.

In Motrin's case, the medication concentration is different in the infant's and children's versions.

⚠️ Do not give children Aspirin (BC Powders, Alka-Seltzer, and others) due to risk of a fatal liver condition called Reye Syndrome

Dosing Calculator

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Acetaminophen (Tylenol) Dosing
Weight (lbs) Age Children's Liquid (160 mg / 5 ml) Children's Soft Chewable (160 mg) Rectal Suppository (variable dose) Adult Tablets (325 mg)
6-11 2-3 months Call Your Doctor Before Giving Medicine
12-17 4-11 months 2.5 ml -- (1) 80mg --
18-23 9-23 months 3.75 ml -- (1) 120mg --
24-35 2-3 years 5 ml 1 chew tab (2) 80mg --
36-47 4-5 years 7.5 ml 1.5 chew tabs (2) 120mg --
48-59 6-8 years 10 ml 2 chew tabs (1) 325mg 1 tab/cap
60-71 9-10 years 12.5 ml 2.5 chew tabs (1) 325mg 1 tab/cap
72-95 10-11 years 15 ml 3 chew tabs (1.5) 325mg 1.5 tab/cap
Over 95 Over 11 years 20 ml 4 chew tabs (1) 650mg 2 tab/cap
Ibuprofen (Advil, Motrin) Dosing
Weight (lbs) Age Children's Liquid (100 mg / 5 ml) Children's Soft Chewable (100 mg) Adult Tablets (200 mg)
6-11 2-3 months Do not give Ibuprofen to infants under 6 months old
12-17 6-11 months 2.5 ml -- --
18-23 9-23 months 3.75 ml -- --
24-35 2-3 years 5 ml 1 chew tab --
36-47 4-5 years 7.5 ml 1.5 chew tabs --
48-59 6-8 years 10 ml 2 chew tabs 1 tab/cap
60-71 9-10 years 12.5 ml 2.5 chew tabs 1 tab/cap
72-95 10-11 years 15 ml 3 chew tabs 1.5 tab/cap
Over 95 Over 11 years 20 ml 4 chew tabs 2 tab/cap