Aleve (naproxen sodium) is taken once every 8 to 12 hours, with a maximum of 3 tablets in 24 hours when using the over-the-counter 220 mg strength. That spacing matters because naproxen stays active in your body far longer than most pain relievers, with effects lasting up to 12 hours per dose.
Standard OTC Dosing Schedule
Each over-the-counter Aleve tablet contains 220 mg of naproxen sodium. For your first dose, you can take 1 or 2 tablets. After that, take 1 tablet every 8 to 12 hours as needed. The absolute cap is 3 tablets (660 mg) in any 24-hour period unless a doctor has told you otherwise.
A practical schedule might look like this: take your first dose in the morning and a second dose in the evening, roughly 12 hours apart. If your pain is more intense and you started with 2 tablets, wait at least 12 hours before taking a third. You do not need to take all 3 tablets every day. Use the fewest doses that control your symptoms.
Why Aleve Lasts Longer Than Ibuprofen
Naproxen has a plasma half-life of 12 to 17 hours, meaning it takes that long for your body to clear just half of a single dose. By comparison, ibuprofen’s half-life is only about 2 hours, which is why you need to take it every 4 to 6 hours. This long half-life is the reason Aleve can provide pain relief for up to 12 hours on a single tablet and why fewer daily doses are needed.
That slow clearance is also why spacing matters so much. Taking Aleve more frequently than every 8 hours causes the drug to accumulate in your system faster than your body can process it, raising the risk of side effects.
How Long You Can Take It Continuously
For over-the-counter use, the standard recommendation is no more than 10 consecutive days for pain and no more than 3 consecutive days for fever. If your symptoms haven’t improved within those windows, it’s time to talk to a doctor rather than continuing to self-treat. Prescription-strength naproxen can be taken for longer periods under medical supervision, but the OTC version is designed for short-term use.
Taking Aleve With Food
Naproxen, like all NSAIDs, reduces the protective lining of your stomach. Taking it with food, milk, or a full glass of water helps buffer this effect and lowers the chance of stomach irritation, nausea, or heartburn. If you take Aleve on an empty stomach, you’re more likely to notice discomfort within the first hour.
The bigger concern with long-term or frequent use is gastrointestinal bleeding. This risk increases the longer you take any NSAID and is higher in adults over 60, people who have had stomach ulcers, and those who drink alcohol regularly. These factors make sticking to the recommended dosing schedule and duration especially important.
Who Should Be Cautious
Aleve is approved for adults and children age 12 and older at OTC doses. Children under 12 should not take it without a doctor’s guidance. Adults over 65 are more sensitive to the gastrointestinal and cardiovascular effects of NSAIDs, so lower doses and shorter durations are generally safer for this group.
If you take a blood thinner, whether an antiplatelet drug like aspirin or an anticoagulant like warfarin, combining it with Aleve raises your bleeding risk significantly. NSAIDs interfere with how platelets form clots, and layering that on top of a blood thinner can be a dangerous combination, particularly in the digestive tract.
Cardiovascular Safety Compared to Other NSAIDs
All NSAIDs carry some cardiovascular risk, but naproxen consistently performs better than alternatives in this area. A study published by the American Heart Association found that among patients with serious coronary heart disease, naproxen users had the lowest rates of heart attack and cardiovascular death compared to users of ibuprofen, diclofenac, and higher doses of celecoxib. Ibuprofen users had a 25% higher risk of serious cardiovascular events relative to naproxen users, and diclofenac users had a 52% higher risk.
This doesn’t mean naproxen is risk-free for your heart. The cardiovascular warning applies to the entire NSAID class. But if you need an over-the-counter anti-inflammatory and heart health is a concern, naproxen’s safety profile is worth knowing about.
Common Mistakes to Avoid
- Doubling up with other NSAIDs. Taking Aleve alongside ibuprofen or aspirin (beyond low-dose heart aspirin) increases side effects without improving pain relief. These drugs work through the same mechanism, so stacking them just raises your risk.
- Using the ibuprofen schedule. Because ibuprofen is taken every 4 to 6 hours, some people instinctively take Aleve just as often. This can easily push you past the daily maximum and lead to stomach or kidney problems.
- Taking it for weeks without a checkup. Chronic pain that requires daily Aleve for more than 10 days needs a different strategy. Prolonged NSAID use can damage the stomach lining, stress the kidneys, and raise blood pressure over time.