Aleve Dosage Calculator

Aleve is a brand of naproxen sodium, a nonsteroidal anti-inflammatory drug used for temporary relief of pain, inflammation, and fever. In many markets, the common nonprescription tablet contains 220 mg of naproxen sodium. Label directions for adults and children age 12 years and older commonly specify one 220 mg tablet every 8 to 12 hours while symptoms last. Some labels permit two tablets for the first dose, but no more than two tablets in any 8-to-12-hour period and no more than three tablets, or 660 mg, in 24 hours. Product instructions vary by country and formulation, so the actual package controls. For children younger than 12, over-the-counter Aleve labels generally direct caregivers to ask a doctor. Pediatric naproxen may be prescribed for selected conditions using weight-based regimens and an appropriate formulation. This calculator displays an educational reference of 5 mg per kg per dose and 10 mg per kg per day for younger patients, but it is not a recommendation to give an adult tablet. Tablet splitting may be inaccurate or inappropriate, and liquid concentrations differ. A pediatrician or pharmacist must confirm the indication, dose, interval, formulation, and duration. Naproxen can cause stomach or intestinal bleeding, ulcers, kidney injury, fluid retention, allergic reactions, and cardiovascular events. Risk may be higher in older adults, people with prior ulcers or bleeding, kidney or heart disease, uncontrolled blood pressure, heavy alcohol use, or treatment with anticoagulants, corticosteroids, aspirin, or other NSAIDs. Do not combine naproxen with ibuprofen or another NSAID unless a clinician specifically directs it. People who are pregnant, particularly at 20 weeks or later, should seek professional advice before NSAID use. The tablet-equivalent result divides the calculated single dose by the entered tablet strength. A fractional value does not mean that the tablet can safely be divided. Check whether the dosage form is scored, delayed release, extended release, or otherwise unsuitable for splitting. Prescription naproxen and naproxen sodium products are not interchangeable milligram for milligram without attention to the label. Use the lowest effective dose for the shortest directed time. Seek urgent care for vomiting blood, black stools, severe chest pain, trouble breathing, facial swelling, severe weakness, or reduced urination. Persistent pain, fever, swelling, or a need for repeated dosing warrants medical assessment. This calculator is educational and does not replace a medicine label, pharmacist, or prescribing clinician.