How long does it usually take for Advil (ibuprofen) to help a headache?
For many people, Advil (ibuprofen) starts to ease headache pain within about 30 to 60 minutes after taking it. How fast it works can vary based on how soon you take it after symptoms begin, your dose, and whether you took it with food.
When should you take another dose?
If Advil is going to help, you’ll typically notice improvement within the first hour. If your headache is still not improving, follow the label directions for the next dose timing rather than taking extra early.
What can slow down how fast it works?
Several factors can delay relief, including taking Advil on a very full stomach, waiting a long time after the headache starts, and using other medications that may affect absorption. If you took it with food, onset can be slower but some people still get the same overall pain relief.
What if it doesn’t help after a couple hours?
If you don’t feel any meaningful improvement after about 2 hours, ibuprofen may not be the best fit for that particular headache. You can consider other options labeled for headache relief (or non-drug measures like hydration and rest), but avoid exceeding the maximum daily dose on the package.
When to get urgent medical help
Seek urgent care if your headache is severe or unusual for you, comes with neurologic symptoms (weakness, confusion, fainting, trouble speaking), fever and stiff neck, a sudden “worst headache,” head injury, or if you’re pregnant and develop a new severe headache.