For most headaches, ibuprofen is the better first choice. It works faster, and clinical evidence ranks it above naproxen for achieving a pain-free state within two hours. But naproxen has a longer duration of action, which makes it more useful when headaches drag on for hours or recur throughout the day. The best pick depends on the type of headache you’re dealing with and how long your pain typically lasts.
Ibuprofen Works Faster for Tension Headaches
A network meta-analysis published in the Annals of Medicine compared common painkillers for tension-type headaches, the most common kind most people experience. Ibuprofen came out on top, with a pain-free rate at two hours that was 2.86 times higher than placebo. Naproxen, surprisingly, didn’t even beat placebo by a statistically significant margin for the two-hour pain-free measure. The overall efficacy ranking placed ibuprofen first and naproxen near the bottom, just above placebo.
This matters because most people reaching for a painkiller want fast relief. Standard ibuprofen tablets reach peak effectiveness in roughly 40 to 60 minutes, while solubilized capsule formulations (like Advil Liqui-Gels) can take closer to two hours for maximum enzyme inhibition. Naproxen generally takes longer to kick in than ibuprofen in any formulation.
For Migraines, the Gap Narrows
Migraine data tells a slightly different story. In a head-to-head trial, ibuprofen provided two-hour pain relief in about 60% of participants, compared to roughly 44-46% for naproxen sodium. For complete pain freedom at two hours, ibuprofen achieved around 33%, while naproxen sodium landed at 15-18%. So ibuprofen still comes out ahead, but both are considered reasonable options for acute migraine treatment.
One review in the journal Pharmaceuticals concluded there’s “little scientific reason to prefer one NSAID over the other” for migraines, noting that both ibuprofen and naproxen are good choices based on their absorption speed and overall effectiveness. The review also found that 400 mg of ibuprofen performed comparably to 50 mg of sumatriptan, a prescription migraine drug, which speaks to how effective over-the-counter ibuprofen can be for migraine attacks.
Naproxen does have a specific advantage for migraines tied to menstrual cycles. A double-blind, placebo-controlled study found that naproxen sodium taken preventively reduced headache intensity, duration, number of headache days, and the need for additional painkillers during menstrual periods. Its longer duration of action makes it well-suited for this kind of scheduled, multi-day use.
Naproxen Lasts Significantly Longer
Where naproxen clearly wins is staying power. A randomized, double-blind trial comparing single doses of naproxen sodium and ibuprofen 400 mg found that naproxen provided pain relief for significantly longer. The biggest separation between the two drugs appeared between 9 and 14 hours after the dose. Significantly fewer people taking naproxen needed a rescue painkiller over a 24-hour period.
In practical terms, ibuprofen needs to be taken every four to six hours, meaning you might need three or four doses to get through a full day. Naproxen is typically taken every 8 to 12 hours. If your headaches tend to come back after a few hours, or if you want to take fewer pills overall, naproxen’s longer action is a real advantage.
Stomach and Heart Safety Differ
Both drugs work the same way: they block enzymes called COX-1 and COX-2, which produce compounds that cause pain and inflammation. Neither is selective for one enzyme over the other. But their safety profiles are not identical.
For stomach safety, ibuprofen is gentler. The relative risk of upper gastrointestinal bleeding or perforation is 2.7 for ibuprofen compared to 5.6 for naproxen. That makes naproxen roughly twice as likely to cause serious stomach problems, though the absolute risk from occasional use for headaches remains low for most people.
For heart safety, naproxen has a slight edge. A large trial published in the New England Journal of Medicine found that ibuprofen was associated with a higher rate of nonfatal heart attacks compared to naproxen (hazard ratio of 1.39). This difference is more relevant for people who take these drugs regularly rather than occasionally for a headache, but it’s worth knowing if you have existing heart disease risk factors.
What Not to Combine Them With
You should never take ibuprofen and naproxen together. They’re both NSAIDs, and doubling up increases the risk of stomach bleeding without improving pain relief. Beyond that, both drugs interact with the same list of common medications:
- Blood thinners: Both increase bleeding risk when combined with anticoagulants.
- Blood pressure medications and diuretics: NSAIDs can reduce their effectiveness and raise blood pressure.
- Aspirin: Taking ibuprofen alongside daily low-dose aspirin can block aspirin’s heart-protective effect.
- Lithium and methotrexate: NSAIDs can raise blood levels of both drugs to potentially dangerous concentrations.
- Some antidepressants: Certain medications for depression combined with NSAIDs increase bleeding risk.
- Alcohol: Raises the chance of stomach irritation and bleeding with either drug.
Which One to Choose
If you get occasional tension headaches and want the fastest relief, ibuprofen at 400 mg is the stronger option based on clinical evidence. It’s also easier on your stomach if you’re prone to digestive issues.
If your headaches last most of the day, recur frequently within a 24-hour window, or are tied to your menstrual cycle, naproxen sodium is the more practical choice. You’ll take fewer doses and get more consistent coverage. Its longer duration also makes it better suited for headaches that build slowly or linger.
For migraines specifically, either drug is reasonable. Ibuprofen has modestly better two-hour response rates, but naproxen’s sustained action can help prevent the headache from returning later in the day, which is a common frustration with migraine attacks.