Adults can take Advil (ibuprofen) every four to six hours as needed, up to a maximum of 1,200 mg in 24 hours when using over-the-counter strength. Each OTC Advil tablet contains 200 mg, so that means no more than six tablets per day. If your pain or fever hasn’t improved after a few days at that dose, it’s worth talking to a provider rather than continuing to self-treat.
Standard Adult Dosing Schedule
For general pain, headaches, or fever, the standard adult dose is 200 to 400 mg every four to six hours. That translates to one or two tablets at a time. Always wait at least four hours between doses, even if the pain returns sooner. For menstrual cramps specifically, the recommended dose is 400 mg every four hours as needed, since cramping tends to respond better to slightly more frequent dosing at the higher single-dose amount.
Advil typically starts working within 30 to 60 minutes, and each dose provides relief for about four to six hours. If you take a dose and don’t feel improvement after an hour, taking more won’t help and will only increase your risk of side effects. Stick with the schedule and wait for the next dose window.
How Long Advil Takes to Wear Off
The pain-relieving effect lasts roughly four to six hours per dose, which is why the dosing intervals match that window. Some people find relief lasts closer to four hours, others closer to six. Your body size, the severity of your pain, and whether you took it with food all play a role. Taking it with or just after food (even something small like crackers, yogurt, or a banana) is recommended because ibuprofen can irritate an empty stomach.
Dosing for Children
Children’s dosing works differently. Kids can take ibuprofen every six to eight hours (not four to six like adults), and the amount is based on weight rather than age. If you don’t know your child’s weight, age can be used as a rough guide, but weight is more accurate. Ibuprofen should not be given to babies under six months old unless specifically directed by a pediatrician, as it hasn’t been established as safe for that age group.
Alternating Advil With Tylenol
If one medication alone isn’t cutting it, you can alternate Advil with acetaminophen (Tylenol) to get more consistent relief without exceeding the safe limits of either drug. The approach is simple: take one, then four to six hours later take the other. You can repeat this cycle every three to four hours throughout the day.
When alternating, the daily ceiling is 1,200 mg of ibuprofen and 4,000 mg of acetaminophen for adults and anyone over 12. Don’t take both at the exact same time. And if you find yourself alternating the two for more than three consecutive days, that’s a signal to check in with a provider about what’s driving the ongoing pain or fever. For children under 12, the same alternating approach works, but you’ll want a pediatrician to confirm the right doses based on your child’s weight.
Risks of Taking Advil Too Often
Ibuprofen is safe for short-term use at recommended doses, but problems build when people take it frequently over weeks or months, or routinely exceed the daily limit. Higher doses significantly increase the risk of stomach bleeding, heart problems, and kidney damage. Your kidneys are especially vulnerable if you’re dehydrated or already have reduced kidney function.
Chronic overuse has been linked to heart attack, stroke, high blood pressure, stomach ulcers, heart failure, and (rarely) liver toxicity. Mixing alcohol with ibuprofen further raises the chance of stomach bleeding. If you’re reaching for Advil most days, that pattern itself is worth addressing rather than continuing to manage symptoms with daily doses.
Tips for Safer Use
- Take it with food. Even a small snack helps protect your stomach lining from irritation.
- Use the lowest effective dose. If one 200 mg tablet handles your headache, there’s no reason to take two.
- Stay hydrated. Dehydration combined with ibuprofen puts extra strain on your kidneys.
- Don’t stack with other NSAIDs. Naproxen (Aleve) and aspirin are in the same drug class. Taking them alongside Advil multiplies your risk of side effects without adding benefit.
- Keep it short-term. OTC ibuprofen is designed for temporary relief, not daily maintenance. A few days is reasonable. Beyond that, the underlying issue likely needs a different approach.