The standard adult dose of Advil (ibuprofen) is 200 to 400 mg every four to six hours as needed, with a maximum of 1,200 mg in 24 hours for over-the-counter use. That translates to one or two regular Advil tablets (each is 200 mg) up to three times a day. Higher doses, up to 3,200 mg per day, are sometimes prescribed by doctors for conditions like arthritis, but you shouldn’t go above 1,200 mg on your own.
Standard Adult Doses by Type of Pain
For most everyday pain, like headaches, muscle aches, or toothaches, 400 mg (two tablets) every four to six hours works well for the majority of adults. You don’t always need two tablets. If your pain is mild, starting with 200 mg (one tablet) is reasonable, and you can take a second if that’s not enough.
For menstrual cramps, the recommended dose is 400 mg every four hours as needed. The shorter interval reflects how quickly cramp pain can return. Regardless of the type of pain, keep your total under 1,200 mg in a 24-hour period unless a doctor has specifically told you otherwise.
How Quickly It Works
Advil typically starts relieving pain within 30 to 60 minutes of taking it. The pain relief lasts about four to six hours, which is why the dosing intervals are set the way they are. Taking your next dose before the previous one wears off is fine as long as you’re within the timing window and haven’t hit the daily limit. Taking it with food can help prevent stomach irritation, though it won’t significantly change how fast it works.
Dosing for Children
Children’s Advil is dosed by weight, not age, and comes in liquid or chewable forms with lower concentrations than adult tablets. It can be given every six to eight hours, which is a longer gap than the adult schedule. Ibuprofen should not be given to babies under six months old. For children over six months, the packaging includes a weight-based dosing chart. If your child falls outside the weight ranges listed on the box, check with a pediatrician rather than estimating.
Who Should Avoid Advil
Ibuprofen works by blocking enzymes that produce compounds involved in pain, inflammation, and fever. Those same compounds also play protective roles in the stomach lining, kidneys, and cardiovascular system, which is why certain people face higher risks from even standard doses.
You should be cautious or avoid Advil entirely if you have:
- A history of stomach ulcers or GI bleeding. Ibuprofen reduces the protective mucus in your stomach, and people with prior ulcers are at significantly greater risk of serious bleeding events.
- Heart disease or high blood pressure. All NSAIDs, including ibuprofen, carry an increased risk of heart attack and stroke. This risk is higher in people who already have cardiovascular disease or poorly controlled blood pressure.
- Kidney problems. Ibuprofen can reduce blood flow to the kidneys, worsening existing kidney dysfunction.
- Pregnancy at 20 weeks or later. The FDA warns that ibuprofen use from 20 weeks onward can cause kidney problems in the developing baby, leading to dangerously low amniotic fluid levels. After 30 weeks, there’s an additional risk of premature closure of a key blood vessel in the baby’s heart. Earlier in pregnancy, the risks are less clear, but many doctors recommend acetaminophen as a safer alternative throughout pregnancy.
Older adults face compounded risk because both GI and cardiovascular side effects become more common with age. If you’re over 65 and reaching for Advil regularly, a lower dose for the shortest time possible is the safest approach.
Advil and Alcohol
Combining ibuprofen with alcohol raises the risk of upper gastrointestinal bleeding. One study found that regular ibuprofen users had roughly 2.7 times the risk of major upper GI bleeding compared to non-users, and heavy alcohol consumption independently raises that risk further. Having a single drink while taking an occasional Advil is unlikely to cause a crisis, but making a habit of mixing the two is genuinely dangerous. The risk is highest in people who both drink heavily and take ibuprofen regularly.
Signs You’ve Taken Too Much
An ibuprofen overdose can range from uncomfortable to life-threatening depending on the amount. Early symptoms include nausea, vomiting, stomach pain, and headache. More serious signs include ringing in the ears, blurred vision, confusion, difficulty breathing, very low urine output, and seizures. If you or someone else has taken significantly more than the recommended amount, contact Poison Control (1-800-222-1222 in the U.S.) or call emergency services. Don’t wait for severe symptoms to appear.
Keeping It Safe for Regular Use
The most important rule with Advil is to use the lowest dose that works for the shortest time you need it. If you find yourself taking it daily for more than 10 days, that’s a signal to figure out what’s driving the pain rather than continuing to manage it with over-the-counter medication. Long-term daily use increases the risk of stomach bleeding, kidney damage, and cardiovascular events even in people who start out healthy.
Spacing your doses properly matters more than most people realize. Taking two doses close together because the first one “didn’t kick in yet” is a common mistake. Give it the full 30 to 60 minutes before deciding it’s not working. And if 400 mg genuinely isn’t touching your pain, taking more won’t necessarily help. Pain that doesn’t respond to standard OTC doses often needs a different approach, not a higher dose of the same drug.