For over-the-counter Aleve, the maximum is 3 tablets in 24 hours. Each tablet contains 220 mg of naproxen sodium, putting your daily OTC ceiling at 660 mg. That limit drops to 2 tablets for adults over 65. With a prescription, the maximum daily dose can go as high as 1,500 mg, but only under medical supervision.
OTC Dosing: How to Space Your Tablets
The standard OTC schedule starts with one tablet every 8 to 12 hours. For your first dose, you can take two tablets if needed, then follow up with one tablet every 12 hours after that. Either way, you should not exceed 3 tablets in any 24-hour window. Take each dose with a full glass of water. If Aleve upsets your stomach, taking it with food or milk helps.
Aleve lasts longer than most OTC pain relievers. Its elimination half-life is roughly 15 hours, meaning the drug stays active in your body far longer than ibuprofen or acetaminophen. That long duration is exactly why the doses are spaced so far apart and why taking extra pills “because it wore off” is risky. Pain relief typically kicks in within 30 minutes.
Prescription Doses Are Higher
Doctors sometimes prescribe naproxen (the active ingredient in Aleve) at doses up to 1,000 or even 1,500 mg per day for conditions like rheumatoid arthritis, osteoarthritis, or gout flares. These higher amounts are split across the day, typically taken morning and evening, and are monitored for side effects. For pain from tendinitis, bursitis, or menstrual cramps, the prescription ceiling is generally 1,000 mg per day.
The gap between the OTC limit (660 mg) and the prescription maximum (1,500 mg) exists because higher doses carry real risks that require medical oversight. Don’t bridge that gap on your own by simply taking more OTC tablets.
Why the Limit Matters: Stomach and Kidney Risks
Naproxen belongs to the NSAID family, and like all NSAIDs, it works by blocking enzymes involved in inflammation. Those same enzymes also protect your stomach lining and help maintain blood flow to your kidneys. When you take too much, or take it too long, both systems can suffer.
Stomach bleeding is the most well-known danger. FDA labeling requires a specific warning on every box of Aleve because the risk increases significantly if you are 60 or older, have a history of ulcers or bleeding problems, drink three or more alcoholic beverages a day, or take other NSAIDs or blood thinners at the same time. Taking more than directed, or using it longer than recommended, also raises the risk.
Kidney damage is the other major concern. NSAIDs reduce the production of compounds your kidneys depend on to filter blood properly. At higher doses, this can lead to acute kidney injury, fluid retention, increased blood pressure, and dangerous shifts in electrolytes like potassium and sodium. The risk of long-term kidney damage is dose-dependent, meaning it climbs as you take more.
Who Should Take Less
Adults over 65 should take one tablet every 12 hours and cap their daily intake at 2 tablets unless directed otherwise by a doctor. Aging kidneys and livers process the drug more slowly, and older adults face a higher baseline risk for stomach bleeding.
People with existing kidney disease, liver problems, or heart conditions also typically need lower doses. If you fall into any of these groups, the standard 3-tablet maximum does not apply to you.
Don’t Combine With Other NSAIDs
You should not take Aleve alongside ibuprofen (Advil, Motrin), aspirin, or any other NSAID. Stacking these drugs multiplies the risk of stomach bleeding and kidney injury without providing better pain relief. This also applies to prescription NSAIDs you might already be taking.
Other medications that interact with naproxen include blood thinners like warfarin, steroids like prednisolone, certain antidepressants, diuretics (water pills), some blood pressure medications, and methotrexate. If you take any of these regularly, check with your pharmacist before adding Aleve.
How Long You Can Use It
OTC Aleve is intended for short-term use, generally no more than 10 days for pain or 3 days for fever, without medical guidance. If you find yourself reaching for it daily beyond that window, that’s a signal to get the underlying problem evaluated rather than continuing to self-treat.
Signs You’ve Taken Too Much
Overdose symptoms include severe stomach pain, nausea, vomiting, drowsiness, blurred vision, ringing in the ears, and dizziness. In serious cases, confusion, seizures, and slowed breathing can occur. If you or someone else has taken significantly more than 3 tablets in a day and is showing any of these symptoms, that requires emergency medical attention.