Adults can take Advil (ibuprofen) every four to six hours as needed for pain, with a maximum of 1,200 mg in 24 hours when using the over-the-counter strength. Each standard Advil tablet contains 200 mg, so that works out to no more than six tablets per day. The key is spacing doses properly and not relying on it for longer than necessary.
Standard Dosing for Adults
For mild to moderate pain like headaches, muscle aches, or back pain, the recommended dose is 200 to 400 mg every four to six hours. In practical terms, that means one or two tablets per dose, taken no more than three times a day if you’re using 400 mg at a time. Always wait at least four hours between doses, even if the pain returns sooner.
For menstrual cramps, the dosing interval tightens slightly: 400 mg every four hours as needed. This reflects the fact that ibuprofen reaches peak levels in your blood within one to two hours and has a relatively short half-life of about two hours, meaning its effects can wear off faster than you might expect for certain types of pain.
Take ibuprofen with food or a glass of milk. It’s well known for irritating the stomach lining, and eating something beforehand significantly reduces that risk.
How Long You Can Keep Taking It
Over-the-counter ibuprofen is meant for short-term use. The general guideline is no more than 10 consecutive days for pain, or three consecutive days if you’re using it to manage a fever. If you still need it after that window, something else is going on that deserves a closer look from a healthcare provider.
This limit exists because the risks of ibuprofen compound over time. Occasional use is generally well tolerated, but daily use over weeks or months raises the likelihood of stomach ulcers, kidney strain, and cardiovascular problems. The drug works by blocking inflammation, but that same mechanism also reduces protective processes in your stomach and kidneys.
Dosing for Children
Children’s Advil uses a different schedule. Kids can take ibuprofen every six to eight hours (not every four to six like adults), and the dose is based on weight rather than age. Always use your child’s weight to determine the right amount, and follow the dosing chart on the packaging. Ibuprofen is not recommended for infants under six months old.
Advil Dual Action Is on a Different Schedule
If you’re using Advil Dual Action, which combines ibuprofen with acetaminophen, the timing changes. The dose is two caplets every eight hours, not every four to six. The maximum is six caplets in 24 hours. Because this product contains two active ingredients, you need to be careful not to take additional acetaminophen (Tylenol) or ibuprofen products at the same time.
Who Should Use Less or Avoid It Entirely
People with kidney disease, heart disease, or high blood pressure should avoid ibuprofen unless specifically cleared by a provider. The National Kidney Foundation warns that ibuprofen and other anti-inflammatory drugs can harm the kidneys at high doses or with long-term use, and they can worsen existing kidney disease with continued use.
The risks aren’t limited to people with diagnosed conditions. If you’re dehydrated, fasting, or taking blood pressure medications or blood thinners, ibuprofen interacts with your body differently. Older adults are also more vulnerable to stomach and kidney side effects, even at standard doses.
Getting the Most From Each Dose
A few practical habits make ibuprofen work better and reduce side effects:
- Take the lowest effective dose. If one 200 mg tablet handles your pain, there’s no reason to take two. Start low and only increase if needed.
- Don’t stack with other anti-inflammatories. Naproxen (Aleve) and aspirin work through similar mechanisms. Taking them alongside ibuprofen increases stomach and kidney risks without meaningfully improving pain relief.
- Use it “as needed,” not on a fixed schedule. Unless you’re managing something like post-surgical pain where staying ahead of inflammation matters, take it only when pain returns rather than automatically redosing at the four-hour mark.
- Eat something first. Even a small snack creates a buffer between the drug and your stomach lining.
If you find yourself reaching for Advil daily or counting the hours until your next dose, that’s a signal that the underlying problem needs different treatment rather than more ibuprofen.