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,
call 911 or 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.
Reasons to stop taking NSAIDs
NSAIDs may delay healing. If you develop any of the following signs
of infection, stop taking the medication:
An increase in pain
Skin that is
hot to the touch around the injury or wound
Redness or red streaks
extending from the injury or wound
Pus that continues to form in
Fever with no other cause
above the injury or wound
NSAIDs have the potential to increase your risk
of heart attack, stroke, skin reactions, and serious stomach and intestinal
bleeding. These risks are greater if you take NSAIDs at higher doses or for
longer periods than recommended.
Aspirin, unlike other NSAIDs, has
been shown to reduce the risk of heart attack and stroke. It does carry the
risks of serious stomach and intestinal bleeding as well as skin reactions.
Talk to your doctor about whether NSAIDs are right for you. People
who are older than 65 or who have existing heart, stomach, kidney, liver, or
intestinal disease are at higher risk for problems. For other people, the
benefits may outweigh the risks.
Do not take NSAIDS if you have ever had an
allergic reaction to any type of pain medicine.
If you are pregnant, trying to become pregnant, or breast-feeding, talk to your doctor before you use NSAIDs. It is
especially important to avoid using NSAIDs during the last 3 months of
pregnancy unless your doctor tells you to. They can cause problems with the
baby or the delivery.
Talk to your doctor before taking NSAIDs if you have:
Ulcers or a history of stomach or
Stomach pain, upset stomach, or heartburn that
lasts or comes back.
How this information was developed to help you make better health decisions.