For a healthy adult, the standard single dose of Advil is 1 to 2 tablets (200 to 400 mg of ibuprofen). You can safely take up to 2 tablets at once for most types of pain and fever, and you should not exceed 6 doses (or a total of 1,200 mg) in a 24-hour period when using the over-the-counter strength.
Standard Adult Dose
Each regular Advil tablet contains 200 mg of ibuprofen. For mild to moderate pain, headaches, menstrual cramps, and fever, the recommended dose is 400 mg every four to six hours as needed. That means 2 tablets at a time, with at least four hours between doses. Most people find that 1 tablet handles minor aches, while 2 tablets works better for moderate pain like a bad headache or cramps.
In a full day, you should not take more than 6 tablets (1,200 mg) without a doctor’s guidance. Prescription-strength ibuprofen for conditions like arthritis can go as high as 3,200 mg per day, but that range requires medical supervision because the risks increase significantly at higher doses.
How Long to Wait Between Doses
Space your doses at least four to six hours apart. Taking another dose too soon is one of the most common ways people accidentally exceed safe limits. If 2 tablets aren’t enough to manage your pain after an hour, don’t take more. Adding a second type of pain reliever or trying a different approach is safer than stacking extra ibuprofen.
You also shouldn’t rely on Advil for more than 10 consecutive days for pain, or more than 3 days for fever. If you still need it after that window, something else may be going on that warrants a closer look.
Dosing for Children
Children’s doses are based on weight, not age. Kids under 6 months should not take ibuprofen at all. For children 6 months and older, the standard dose is 10 mg per kilogram of body weight, given every six to eight hours, with no more than 4 doses in a day.
As a practical guide for the adult-strength 200 mg tablets: children weighing 48 to 71 pounds can take 1 tablet, children 72 to 95 pounds can take 1.5 tablets, and children 96 pounds or heavier can take 2 tablets. For younger or smaller children, liquid formulations or chewable tablets make accurate dosing much easier.
What Happens If You Take Too Many
Taking more than the recommended dose doesn’t just waste medicine. Ibuprofen works by blocking an enzyme that produces chemicals involved in pain and inflammation. Those same chemicals also protect your stomach lining and help your kidneys regulate blood flow. When you overwhelm the system with too much ibuprofen, those protective functions break down.
Symptoms of an overdose can include severe stomach pain, nausea, vomiting, and diarrhea, sometimes with bleeding in the digestive tract. At higher levels, neurological symptoms appear: severe headache, confusion, difficulty with coordination, and in extreme cases, seizures or loss of consciousness. If you suspect someone has taken a large amount of ibuprofen, call Poison Control or seek emergency care.
Who Should Take Less
The standard 2-tablet dose assumes you’re a healthy adult with no underlying conditions. Several situations lower your safe threshold considerably:
- Kidney problems. Ibuprofen reduces blood flow to the kidneys, which can worsen existing kidney disease or cause damage in people who are dehydrated.
- Stomach ulcers or GI bleeding. Because ibuprofen strips away part of the stomach’s protective lining, anyone with a history of ulcers or gastrointestinal bleeding faces a much higher risk of a serious bleed.
- Heart disease or high blood pressure. Regular ibuprofen use can raise blood pressure and increase the risk of heart attack or stroke, particularly at higher doses or with long-term use.
- Blood thinners. Ibuprofen interferes with normal blood clotting. Combining it with anticoagulants like warfarin, or even daily low-dose aspirin, significantly raises the risk of dangerous bleeding. If you take any blood thinner, talk to your doctor before using Advil.
Quick Reference
- Single dose: 1 to 2 tablets (200 to 400 mg)
- Time between doses: 4 to 6 hours
- Max daily doses: 6 tablets (1,200 mg) for OTC use
- Max consecutive days: 10 for pain, 3 for fever