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Infant Acetaminophen Dosage

For children two to three years old weighing between 24 to 35 pounds, the recommended infant acetaminophen dosage is 1.6 mL every four hours as needed. Before giving the drug to children under the age of two, however, ask your child's healthcare provider for dosing recommendations. Try giving your child his or her infant acetaminophen dose before a feeding to help prevent spitting up the medication.

Infant Acetaminophen Dosage: An Introduction

The recommended dose of infant acetaminophen (Infants' Tylenol®) will vary depending on a number of factors, including:
  • Your child's age and weight
  • Other medications your child may be taking
  • Other medical conditions your child may have.
As is always the case, do not adjust you child's dose of infant acetaminophen unless his or her healthcare provider specifically instructs you to do so.

Infant Acetaminophen Concentration Change

To help minimize the risk of overdoses due to mix-ups between infant acetaminophen and children's acetaminophen products, the strength of all infant acetaminophen products will now be the same as the children's acetaminophen products (160 mg per 5 mL). This is a change from the previous concentration of infant acetaminophen (which was 80 mg per 0.8 mL). The new products will be less concentrated, meaning you will have to give more (in terms of volume) to achieve the same dosage.
For a while, both concentrations may be available in the marketplace, probably well into 2012. This means that caregivers need to be extremely vigilant to note the concentration (and dosage) of the particular product they have. If you have any questions at all, please do not hesitate to ask your pharmacist or healthcare provider, as quite a bit of confusion and many questions are anticipated during this change.
6 Quick Tips for Getting Kids to Take Medicine

Infant Acetaminophen Drug Information

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