How quickly does Advil start relieving headaches?
Advil (ibuprofen) typically begins relieving headache pain within 20 to 30 minutes after taking a standard 200-400 mg dose on an empty stomach.[1] Peak pain relief occurs around 1-2 hours later.[2]
What affects how fast Advil works for headaches?
Food slows absorption, delaying onset to 30-60 minutes or more—take it with water on an empty stomach for quickest effect.[1][3] Higher doses (up to 400 mg) may act slightly faster than 200 mg, but don't exceed 1,200 mg daily without doctor advice.[2] Headaches from tension respond faster than migraines, which might need 45-60 minutes.[4]
How long does Advil headache relief last?
Pain relief from a single dose lasts 4-6 hours, sometimes up to 8 hours for mild headaches.[1][2] Repeat doses every 4-6 hours as needed, staying under daily limits.
What if Advil doesn't work within an hour?
If no relief by 60 minutes, it may not be effective for that headache—consider causes like dehydration, caffeine withdrawal, or needing a combo like Advil Migraine (with caffeine).[3][4] Persistent headaches warrant seeing a doctor to rule out underlying issues.
Advil vs. Tylenol or aspirin for headache speed?
Advil often starts faster (20-30 min) than Tylenol (acetaminophen, 30-60 min) for inflammatory headaches, but Tylenol is gentler on stomachs.[2][3] Aspirin matches Advil's speed but risks more GI upset.[1]
[1]: Drugs.com - Ibuprofen
[2]: FDA Label - Advil
[3]: WebMD - Ibuprofen
[4]: Mayo Clinic - Headaches