Aleve (naproxen sodium) is taken as one tablet every 8 to 12 hours, with a maximum of two to three tablets in a 24-hour period for over-the-counter use. Each tablet contains 220 mg of naproxen sodium. Because it stays active in your body far longer than most painkillers, the dosing schedule is less frequent than you might expect, and getting it right matters for both effectiveness and safety.
Standard Dosing Schedule
For adults and children age 12 and older, the typical approach is to take one tablet (220 mg) every 8 to 12 hours while symptoms last. For the first dose, you can take two tablets if needed, then drop to one tablet for subsequent doses. The key rule: never exceed three tablets (660 mg) in 24 hours unless a doctor has told you otherwise.
Naproxen has a half-life of 12 to 17 hours, meaning it lingers in your system much longer than ibuprofen or acetaminophen. That long duration is actually Aleve’s main advantage. Where you might need to redose ibuprofen every 4 to 6 hours, a single Aleve tablet can carry you through most of a workday or a full night’s sleep. It also means stacking extra doses is riskier than with shorter-acting painkillers.
Taking It With Food
You can take Aleve with or without food, but taking it with food or a glass of milk helps prevent nausea and reduces stomach irritation. This is especially worth doing if you’re taking it for more than a day or two, or if you’ve had stomach sensitivity to painkillers before. A small snack is enough. You don’t need a full meal.
Swallow the tablet whole with a full glass of water. Don’t crush, chew, or break the tablet unless the label specifically says you can. Staying upright for at least 10 minutes afterward helps the tablet move through your esophagus and reduces the chance of irritation there.
How Quickly It Works
Expect pain relief to begin within 30 to 60 minutes. For headaches specifically, naproxen tends to work more slowly at the two-hour mark compared to ibuprofen. If fast relief from a headache is your main goal, ibuprofen may get you there sooner. Where Aleve shines is sustained relief: once it kicks in, it lasts significantly longer, making it a better fit for all-day pain from arthritis, menstrual cramps, or muscle injuries.
What Not to Combine With Aleve
The most common mistake people make is mixing Aleve with other anti-inflammatory painkillers. Do not take ibuprofen (Advil, Motrin) or aspirin at the same time as Aleve. They belong to the same drug class (NSAIDs), and doubling up increases your risk of stomach ulcers, bleeding, and kidney problems without providing meaningfully better pain relief. Many cold and flu products contain ibuprofen or aspirin, so check ingredient labels carefully.
Aleve also interacts with a wide range of medications, including:
- Blood thinners: increased bleeding risk
- Blood pressure medications and diuretics: Aleve can reduce their effectiveness and raise blood pressure
- Lithium and methotrexate: naproxen can increase levels of these drugs in your blood
- Certain antidepressants: higher risk of bleeding when combined with SSRIs
- Steroids like prednisone: compounded risk of stomach and intestinal ulcers
Even some supplements can interact. Garlic, ginger, and ginkgo all have mild blood-thinning properties that may add to naproxen’s effects on clotting.
Alcohol and Aleve
Drinking alcohol while taking Aleve significantly raises your risk of stomach bleeding. The FDA requires an alcohol warning on every bottle: if you have three or more drinks per day, you should not take Aleve without medical guidance. Research has shown the combination is worse than you’d expect from either risk alone. Using over-the-counter NSAIDs roughly doubles the risk of serious gastrointestinal problems, and heavy alcohol use on its own increases the risk by about 2.4 times. But combining the two doesn’t just add those risks together. It multiplies them, pushing the risk to roughly 6.5 times higher than baseline. Even occasional drinking on days you take Aleve is worth minimizing.
How Long You Can Safely Take It
Over-the-counter Aleve is meant for short-term use: no more than 10 days for pain or 3 days for fever, unless directed otherwise by a doctor. This isn’t an arbitrary limit. Prolonged use affects several body systems in ways that build over time.
The stomach and intestinal lining depend on the same chemical signals that naproxen blocks to reduce pain. Extended use gradually erodes that protective barrier, raising the likelihood of ulcers and internal bleeding. Your kidneys are also affected, since naproxen interferes with blood flow regulation in the kidneys. For most healthy adults, a few days of use is fine. Weeks or months of daily use is a different story.
Long-term NSAID use can also raise blood pressure by promoting fluid retention and reducing sodium excretion. The FDA has concluded that NSAIDs increase the risk of heart attack in high-risk individuals, and that elevated blood pressure from chronic use is a contributing factor. This doesn’t mean a few days of Aleve is dangerous for your heart. It means ongoing, daily use changes the risk calculation, particularly if you already have high blood pressure or heart disease.
Who Should Be Extra Cautious
Adults over 65 face higher risks from Aleve because kidney function naturally declines with age. The kidneys clear naproxen from the body, so reduced kidney function means the drug lingers longer and accumulates faster. Older adults are also more vulnerable to stomach bleeding and blood pressure changes. If you’re over 65, using the lowest effective dose for the shortest time is especially important.
People with existing kidney disease should be particularly careful. Medical guidelines recommend avoiding NSAIDs entirely once kidney function drops below certain thresholds. If you know you have kidney problems, this is a medication to discuss with your doctor before using, even occasionally.
Aleve is not recommended for children under 12 unless a pediatrician has specifically prescribed naproxen with weight-based dosing. The over-the-counter tablets are formulated for adult use.
Getting the Most From Each Dose
Because Aleve works best for sustained, moderate pain rather than acute spikes, timing matters. If you know a painful day is coming (heavy physical work, a long flight with a bad back, the first day of your period), taking a dose 30 to 60 minutes beforehand lets the drug reach effective levels before pain peaks. For ongoing pain like arthritis flares, keeping doses evenly spaced at 12-hour intervals provides the most consistent relief.
If you miss a dose, take it as soon as you remember, but skip it if your next dose is coming up soon. Never double up to make up for a missed one. And if Aleve isn’t providing adequate relief at the recommended dose, taking more won’t help and will only increase side effects. That’s the point to consider a different approach rather than pushing the dose higher on your own.