This information is approved and/or reviewed by U-M Health System providers but it is not a tool for self-diagnosis or a substitute for medical treatment. You should speak to your physician or make an appointment to be seen if you have questions or concerns about this information or your medical condition. Exención de responsabilidad en Español | Complete disclaimer
Acetaminophen (Tylenol) is available without a prescription. Determine the correct dosage by finding your child's weight in the top row of the table. You may repeat the dosage every 4-6 hours as needed. Do not give acetaminophen more than 5 times a day. Do not use acetaminophen in children under 3 months of age. If your infant has a fever during the first 12 weeks of life, see your child's healthcare provider.
Weight (Dosage Form) Dose
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7-13 pounds infant drops 0.4 ml or 40 mg
children's liquid 1/4 tsp or 1.25 ml
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14-20 pounds infant drops 0.8 ml or 80 mg
children's liquid 1/2 tsp or 2.5 ml
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21-27 pounds infant drops 1.2 ml or 120 mg
children's liquid 3/4 tsp or 3.75 ml
chewable tablets 1+1/2 tablets or 120 mg
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28 -41 pounds infant drops 1.6 ml or 160 mg
children's liquid 1 tsp or 5 ml
chewable tablets 2 tablets or 160 mg
Jr. strength tablets 1 tablet or 160 mg
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42-55 pounds infant drops 2.4 ml or 240 mg
children's liquid 1+1/2 tsp or 7.5 ml
chewable tablets 3 tablets or 240 mg
Jr. strength tablets 1+1/2 tablet or 240 mg
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56-83 pounds chewable tablets 4 tablets or 320 mg
Jr. strength tablets 2 tablets or 320 mg
adult tablets 1 tablet or 325 mg
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84-111 pounds chewable tablets 6 tablets or 480 mg
Jr. strength tablets 3 tablets or 480 mg
adult tablets 1+1/2 tablets or 480 mg
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112+ pounds chewable tablets 8 tablets or 640 mg
Jr. strength tablets 4 tablets or 640 mg
adult tablets 2 tablets or 650 mg
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Abbreviations: mg = milligrams ml = milliliter tsp = teaspoon
Suppositories: Acetaminophen is also available as a rectal suppository in 120-mg, 325-mg, and 650-mg dosages. Suppositories are useful if a child with a fever is vomiting often or having seizures caused by the fever. Use the same dose as listed above for the suppository. Most suppositories can be cut (for example, cut in half) to supply the right dose for your child's age.
Determine the correct dosage by finding your child's weight in the top row of the table. You may repeat the dosage every 6 to 8 hours as needed. Note that some medicines come with a 1.25 ml dropper and others come with a 1.875ml syringe. Don't let the dropper/syringe difference confuse you. The milligram amount you should give is the same. Do not give ibuprofen to children under 6 months of age.
Weight (Dosage Form) Dose
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12-17 pounds drops 1.25 ml or 50 mg
children's liquid 1/2 tsp or 2.5 ml
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18-23 pounds drops 1.875 ml or 75 mg
children's liquid 3/4 tsp or 3.75 ml
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24-35 pounds drops 2.5 ml or 100 mg
children's liquid 1 tsp or 5 ml
chewable tablets 2 tablets or 100 mg
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36-47 pounds drops 3.75 ml or 150 mg
children's liquid 1+1/2 tsp or 7.5 ml
chewable tablets 3 tablets or 150 mg
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48-59 pounds children's liquid 2 tsp or 10 ml
chewable tablets 4 tablets or 200 mg
Jr. strength tablets 2 tablets or 200 mg
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60-71 pounds children's liquid 2+1/2 tsp or 12.5 ml
chewable tablets 5 tablets or 250 mg
Jr. strength tablets 2+1/2 tablets or 250 mg
adult tablets 1 tablet or 200 mg
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72-95 pounds children's liquid 3 tsp or 15 ml
chewable tablets 6 tablets or 300 mg
Jr. strength tablets 3 tablets or 300 mg
adult tablets 1+1/2 tablets or 300 mg
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96+ pounds children's liquid 4 tsp or 20 ml
chewable tablets 8 tablets or 400 mg
Jr. strength tablets 4 tablets or 400 mg
adult tablets 2 tablets or 400 mg
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Abbreviations: mg = milligrams ml = milliliter tsp = teaspoon
If instructed by your healthcare provider to alternate ibuprofen and acetaminophen, do it as follows:
Combining acetaminophen and ibuprofen is generally not recommended. Combining can cause confusion, dosage errors, and poisoning.
Children (through age 21 years) should not take aspirin if they have chickenpox or influenza (any cold, cough, or sore throat symptoms). This recommendation is based on several studies that have linked aspirin to Reye's syndrome, a severe encephalitislike illness. Most pediatricians have stopped using aspirin for fevers associated with any illness.
