How long does Advil (ibuprofen) last for pain or fever?
Advil is a brand of ibuprofen, which is an “as needed” pain reliever. For most adults, it typically starts working within about 30 minutes, and the pain/fever relief usually lasts around 4 to 6 hours per dose.
How often can you take Advil?
Because the effects generally wear off after several hours, Advil is commonly dosed every 4 to 6 hours as needed for pain or fever (depending on the specific product strength and the label directions).
What affects how long it lasts?
The duration can vary based on:
- Dose strength (higher doses can last longer, but also increase risk)
- Whether you take it with food (food can slow onset but may help stomach comfort)
- Your age and overall health
- The type of problem being treated (headache vs. dental pain vs. muscle pain can feel different)
What if it doesn’t seem to last long enough?
If you feel the relief is short-lived, the first step is to check that you’re using the dosing on the specific Advil product label. Do not take extra doses early. Instead, consider contacting a clinician or pharmacist, especially if symptoms persist beyond a few days or worsen.
When you should get medical help instead of taking more
Seek urgent care if pain or fever is severe, worsening, or accompanied by concerning symptoms (for example, trouble breathing, signs of allergic reaction, or severe stomach pain or vomiting blood).