Most adults should take 1 to 2 Advil tablets at a time, with each tablet containing 200 mg of ibuprofen. That means a single dose ranges from 200 mg to 400 mg, taken every 4 to 6 hours as needed. You should not exceed 6 tablets (1,200 mg) in a 24-hour period when using over-the-counter Advil without medical guidance.
Standard Adult Dose
A standard Advil tablet contains 200 mg of ibuprofen, regardless of whether you buy regular tablets, gel capsules, or Liqui-Gels. For most types of pain, including headaches, muscle aches, and menstrual cramps, the recommended dose for adults and teens over 12 is 400 mg, or 2 tablets, every 4 to 6 hours. You can start with just 1 tablet (200 mg) for milder pain and see if that’s enough before taking more.
The key rules to follow: wait at least 4 hours between doses, and don’t take more than 6 tablets in 24 hours. If 1 tablet handles your pain, there’s no reason to take 2. Use the smallest amount that works.
Dosing for Children
Children under 12 should not use standard Advil tablets. Kids 6 months and older can take children’s ibuprofen in liquid or chewable form, dosed by weight rather than age. The typical dose is about 10 mg per kilogram of body weight, given every 6 to 8 hours, with no more than 4 doses in 24 hours. Ibuprofen is not considered safe for babies under 6 months.
If you’re dosing a child, the packaging for children’s ibuprofen products includes a weight-based chart. Follow it closely, since children’s formulations come in different concentrations than adult tablets.
How Long You Can Keep Taking It
Advil is meant for short-term use. For pain, you shouldn’t take it for more than 10 consecutive days. For fever, the limit is 3 days. If your pain or fever persists beyond those windows, something else may be going on that ibuprofen alone won’t fix.
Even within those timeframes, taking ibuprofen regularly rather than occasionally increases the chance of side effects, particularly stomach irritation and kidney strain. If you find yourself reaching for it daily, that’s worth paying attention to.
Who Should Avoid Advil
Ibuprofen isn’t safe for everyone at any dose. People with a history of stomach ulcers or gastrointestinal bleeding face a higher risk of those problems recurring. It can also stress the kidneys, so anyone with reduced kidney function should be cautious.
Pregnancy requires special attention. The FDA warns against taking ibuprofen and other similar anti-inflammatory drugs at 20 weeks of pregnancy or later. After that point, these medications can cause kidney problems in the developing baby, leading to dangerously low levels of amniotic fluid. In reported cases, some of these complications were severe, though the condition typically reversed once the medication was stopped. After 30 weeks, ibuprofen can also cause heart problems in the baby. Earlier in pregnancy, the risks are less well defined, but many doctors recommend acetaminophen as a safer alternative throughout.
Signs You’ve Taken Too Much
Ibuprofen overdose is uncommon at normal doses but can happen if you accidentally double up, combine multiple products that contain ibuprofen, or take it in large quantities. Early symptoms include nausea, vomiting, stomach pain, and heartburn. More serious signs include ringing in the ears, blurred vision, severe headache, confusion, and difficulty breathing. In extreme cases, an overdose can lead to seizures, very low blood pressure, or kidney failure with little to no urine output.
If you suspect an overdose, contact Poison Control (1-800-222-1222) or seek emergency care. Don’t wait for symptoms to appear, since some effects develop over hours rather than immediately.
Making Each Dose More Effective
Taking Advil with food or a glass of water helps protect your stomach lining and can reduce the nausea some people experience. It won’t change how well the medication works, but it makes the experience easier on your digestive system, especially if you’re taking it multiple times a day.
Timing also matters. Ibuprofen typically starts working within 20 to 30 minutes, and its effects last 4 to 6 hours. If you’re managing pain from something predictable, like menstrual cramps, taking it at the first sign of discomfort tends to work better than waiting until the pain is severe. Once pain is fully established, it takes longer and sometimes a higher dose to bring it under control.