Naproxen
Nonsteroidal anti-inflammatory drug (NSAID) used to treat pain / From Wikipedia, the free encyclopedia
Naproxen, sold under the brand name Aleve among others, is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain, menstrual cramps, and inflammatory diseases such as rheumatoid arthritis, gout and fever.[8] It is taken orally.[8] It is available in immediate and delayed release formulations.[8] Onset of effects is within an hour and lasts for up to twelve hours.[8]
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Pronunciation | /nəˈprɒksən/ |
Trade names | Aleve, Naprosyn, others[1][2] |
AHFS/Drugs.com | Monograph |
MedlinePlus | a681029 |
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Routes of administration | By mouth |
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Bioavailability | 95% (by mouth) |
Protein binding | 99% |
Metabolism | Liver (to 6-desmethylnaproxen) |
Elimination half-life | 12–17 hours (adults)[7] |
Excretion | Kidney |
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ECHA InfoCard | 100.040.747 |
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Formula | C14H14O3 |
Molar mass | 230.263 g·mol−1 |
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Melting point | 152–154 °C (306–309 °F) |
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Common side effects include dizziness, headache, bruising, allergic reactions, heartburn, and stomach pain.[8] Severe side effects include an increased risk of heart disease, stroke, gastrointestinal bleeding, and stomach ulcers.[8] The heart disease risk may be lower than with other NSAIDs.[8] It is not recommended in people with kidney problems.[8] Use is not recommended in the third trimester of pregnancy.[8]
Naproxen is a nonselective COX inhibitor.[8] As an NSAID, naproxen appears to exert its anti-inflammatory action by reducing the production of inflammatory mediators called prostaglandins.[9] It is metabolized by the liver to inactive metabolites.[8]
Naproxen was patented in 1967, and approved for medical use in the United States in 1976.[10][8][11] In the United States it is available over the counter and as a generic medication.[8][12] In 2021, it was the 93rd most commonly prescribed medication in the United States, with more than 7 million prescriptions.[13][14]