Adults: The initial dose
is 400 mg. Follow-up doses are 200 mg to 400 mg every 4 hours as needed, up to
a maximum of 4 doses in a 24-hour period.
Children: Check with your child's doctor if your child is less than 6 months old or less than 12 pounds. Dosages are based on the child's
weight. Give follow-up doses every 6 hours as needed, up to a maximum of 4
doses in a 24-hour period.
Talk to your doctor before you give medicine to reduce a fever in a baby who is 3 months of age or younger. This is to make sure a young baby's fever is not a sign of a serious illness. The exception is if your baby has just had an immunization. Fevers sometimes occur as a reaction to immunizations. After immunizations, you can give your baby medicine to reduce a fever.
Ibuprofen dose for your child's weight
weight in pounds (lb)
weight in kilograms (kg)
Less than 12 lb
Less than 6 kg
Ask a doctor
96 lb and above
44 kg and above
Naproxen (such as Aleve)
Adults: Initial dose is
440 mg. Follow-up doses are 220 mg every 8 to 12 hours as needed. Drink a full
glass of water with each dose. Do not take more than 440 mg in any 8-hour to 12-hour period or 660 mg in a 24-hour
Adults older than 65: Do not take
more than 220 mg every 12 hours unless your doctor tells you
Children: Do not give naproxen to
children younger than 12 unless your doctor tells you to. Your doctor may
prescribe naproxen for your child.
The most common side effects of NSAIDs are stomach upset,
heartburn, and nausea. To help prevent these side effects, take NSAIDs with
food and a glass of water.
NSAIDs can cause a severe allergic reaction.
Symptoms may include
hives, swelling of the face, wheezing, and
shock. If you have any of these symptoms,
call911or other emergency services immediately.
For safety, read
the label carefully and do not take more than prescribed. Taking a larger dose
or taking the medicine longer than recommended can increase your risk of
dangerous side effects.
Do not use a nonprescription NSAID for
longer than 10 days without talking to your doctor.