How long does Advil (ibuprofen) usually take to relieve a headache?
For many people, Advil starts to relieve headache pain within about 30 minutes, with effects continuing after the dose as it’s absorbed and begins reducing inflammation and pain signaling [1].
What’s the typical “wait time” before you decide it’s not working?
If you don’t feel any meaningful relief, a common approach is to wait at least 30 minutes (since onset can be around that time) before judging the result [1]. If symptoms are severe or worsening, don’t just keep taking more—seek medical advice.
How long does the headache relief last after it starts?
The pain-relieving effect often lasts several hours, depending on the person and the dose used [1].
When should you get medical help instead of waiting?
Get medical care promptly if a headache is unusual for you, very severe, comes with neurologic symptoms (such as weakness, confusion, trouble speaking), fever/stiff neck, or if it follows a head injury. Also seek advice if headaches happen frequently or don’t respond to standard treatment [2].
What could change the wait time for Advil?
Delays can happen if you take Advil with food (which can slow absorption) or if the dose is too low for your needs. Other factors include the cause of the headache and individual differences in how your body absorbs and processes ibuprofen [1].
Sources
- https://www.nhs.uk/medicines/ibuprofen/
- https://www.nhs.uk/conditions/headache/