Dosing Recommendations

Below are dosing recommendations for several common over-the-counter products. All doses are determined by weight, not age. Remember to check the label for the type of medicine you are giving. If you have any questions as to the correct dosage, please call us during office hours.

Make sure you do not mix medicines containing the same components (Tylenol and Feverall, for example). Also, do not give medicines to infants less than 2 months old, unless they have just received their vaccines that day. Any fever higher than 100.4 degrees in an infant less than 2 months old is an emergency, and your child must be taken to the hospital immediately.

Both Motrin and Tylenol are safe and effective medicines. In most cases, Motrin will “kick in” quicker and last longer (6 hours vs. 4 hours for Tylenol). But if you child isn’t eating well, the Tylenol is softer on the stomach. Either one will usually bring down the fever within an hour. If the fever comes down but still measures over 101 degrees, you can give the fever medicine that you didn’t originally use. Tylenol and Motrin are metabolized by different organs in the body (the liver for Tylenol and the kidneys for Motrin).

Remember that fever medicines are only meant to temporarily ward off fever; they don't eliminate the causative factor, the infection (bacterial or viral) that originally brought the fever. So the fever may return as the medicine wears off.

Acetaminophen (Tylenol, Feverall, and generic equivalents)

Acetaminophen is available without a prescription. Children older than 2 months of age can be given any acetaminophen product. They all have the same dosages. Determine the correct dosage based on your child's weight and administer every 4 hours as needed. Suppositories are only necessary if your child is vomiting too much to tolerate the oral medicine. (Note: dppr = dropper in the chart below.)

Ibuprofen (Motrin, Advil, and generic equivalents)

Ibuprofen is available without a prescription. We recommend giving Motrin to children who are at least 6 months old.
Determine the correct dosage based on your child's weight and administer every 6-8 hours as needed. (Note: dppr = dropper in the chart below.)

Alternating or Combining Acetaminophen and Ibuprofen

If instructed by your doctor to alternate acetaminophen and ibuprofen, alternate doses of the two medications every 3 hours. You can alternate them for up to 72 hours; after that, return to a single product. You can also use one product mainly and then use the other 45 minutes later if the fever isn't breaking.

Diphenhydramine (Benadryl)

Diphenhydramine is available in liquid form without a prescription, to use for hives and for itching with certain rashes. It can be given every 6 to 8 hours as needed. If your child is experiencing difficulty breathing, wheezing, tongue swelling, lip tingling, vomiting, or other signs of a serious allergic reaction, go to the emergency department immediately. Do not administer diphenhydramine to an infant less than 1 year old without speaking to your doctor first.

Cough and Cold Medicines

The FDA and pediatricians do not recommend the use of decongestants or cough suppressants in children under 6 years old. It is unclear whether these products have any benefit for young children, and recent studies show that there may be significant side effects. If you choose to use these products in older children, please visit the manufacturers' websites for dosing information and for more information on their products. Some common brands include Pediacare, Triaminic, Dimetapp, Robitussin, and Sudafed.

Avoid Aspirin

Children through age 21 years should not take aspirin if they have the chicken pox 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. We have stopped using aspirin for fevers associated with any illness.

Conversion Chart

You can give liquid medicines to children by using either a teaspoon or a syringe (usually measured in cc or mL). Conversions are as follows:

See Other Sickness Topics

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