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Related to Naprosyn: naproxen, Flexeril


trademark for preparations of naproxen, a nonsteroidal antiinflammatory drug.


Apo-Naproxen, EC-Naprosyn, Gen Naproxen, Naprosyn, Naprosyn-E, Naprosyn-EC (UK), Naprosyn SR, Novo-Naprox, Nu-Naprox, Nycopren (UK), PMS-Naproxen EC, Riva-Naproxen

naproxen sodium

Aflaxen, Aleve, Anaprox, Anaprox DS, Apo-Napro-Na, Apo-Napro-Na DS Arthroxen (UK), Gen-Naproxen EC, Napratec (UK), Naprelan, Novo-Naprox Sodium, Novo-Naprox Sodium DS, Riva-Naproxen Sodium, Synflex, Synflex (UK)

Pharmacologic class: Nonsteroidal anti-inflammatory drug (NSAID)

Therapeutic class: Nonopioid analgesic, antipyretic, anti-inflammatory

Pregnancy risk category B (first and second trimesters) D (third trimester)


Unknown. Thought to inhibit prostaglandin synthesis.



Oral suspension: 125 mg/5 ml

Tablets: 250 mg, 375 mg, 500 mg

Tablets (delayed-release): 375 mg, 500 mg

naproxen sodium

Caplets, tablets: 220 mg, 275 mg, 550 mg

Tablets (controlled-release): 375 mg, 500 mg, 750 mg

Indications and dosages

Pain; osteoarthritis; ankylosing spondylitis; dysmenorrhea; bursitis; acute tendinitis

Adults: 250 to 500 mg (naproxen) P.O. b.i.d. (up to 1.5 g/day); 375 to 500 mg (naproxen delayed-release) P.O. t.i.d.; 250 mg, 375 mg, or 500 mg (naproxen oral suspension) P.O. b.i.d.; 275 to 550 mg (naproxen sodium) P.O. b.i.d. (up to 1.65 g/day)

Children: 10 mg/kg P.O. daily in two divided doses (naproxen only)

Mild to moderate pain; primary dysmenorrhea

Adults: Initially, 500 mg (naproxen) P.O., followed by 250 mg q 6 to 8 hours p.r.n., to a maximum of 1.25 g/day. Or initially, 550 mg (naproxen sodium) P.O., followed by 275 mg q 6 to 8 hours p.r.n., to a maximum of 1,375 mg/day.


Adults: Initially, 750 mg (naproxen) P.O., followed by 250 mg q 8 hours or initially, 825 mg (naproxen sodium) P.O., followed by 275 mg q 8 hours. On day 1,1,000 to 1,500 mg (naproxen sodium controlled-release formulation) P.O. once daily, followed by 1,000 mg once daily until attack has subsided.

Management of pain, primary dysmenorrhea, acute tendinitis and bursitis

Adults: Initially, two 500-mg naproxen sodium controlled-release tablets P.O. once daily. Or, for patients requiring greater analgesic benefit, two 750-mg naproxen sodium controlled-release tablets P.O. once daily. Or, three 500-mg naproxen sodium controlled-release tablets may be used for a limited period. Thereafter, total daily dose shouldn't exceed two 500-mg tablets.

Rheumatoid arthritis, osteoarthritis, ankylosing spondylitis

Adults: Initially, two 375-mg naproxen sodium controlled-release tablets P.O. once daily, one 750-mg tablet P.O. once daily, or two 500-mg tablets P.O. once daily. During long-term administration, adjust dosage up or down depending on patient's clinical response. Use lowest effective dose in all patients. (Patients already taking naproxen 250 mg, 375 mg, or 500 mg b.i.d. may have their total daily dosage replaced with naproxen sodium controlled-release tablets as a single daily dose.)

Dosage adjustment

• Renal or hepatic impairment

• Elderly patients


• Hypersensitivity to drug or other NSAIDs

• Asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs

• Perioperative pain in the setting of coronary artery bypass graft surgery


Use cautiously in:

• severe cardiovascular, renal, or hepatic disease

• advanced renal disease (not recommended)

• history of ulcer disease or GI bleeding (use with extreme caution)

• chronic alcohol use or abuse

• elderly patients

• pregnant patients

• breastfeeding patients (avoid use)

• children (naproxen sodium controlled-release) and naproxen use in children younger than age 2 (safety not established).


• Give with food or milk to avoid GI upset.

Adverse reactions

CNS: dizziness, drowsiness, headache, vertigo, light-headedness

CV: palpitations, tachycardia, hypertension

GU: renal toxicity (with long-term use in patients in whom renal prostaglandins have a compensatory role in maintenance of renal perfusion), renal papillary necrosis

EENT: visual disturbances, tinnitus, auditory disturbances

GI: nausea, diarrhea, constipation, heartburn, abdominal pain, stomatitis, GI bleeding

Skin: rash, pruritus, skin eruptions, sweating, photosensitivity, exfoliative dermatitis, Stevens-Johnson syndrome, toxic epidermal necrolysis

Other: thirst, edema, allergic reactions including anaphylaxis


Drug-drug. Acetaminophen (chronic use), cyclosporine: increased risk of adverse renal effects

Anticoagulants, thrombolytics: increased anticoagulant effect

Antihypertensives, cefamandole, cefoperazone, cefotetan, diuretics, eptifibatide: decreased response

Antineoplastics, methotrexate: increased risk of nephrotoxicity

Aspirin: decreased naproxen efficacy

Aspirin, corticosteroids, other NSAIDs: additive adverse GI effects

Clopidogrel, plicamycin, ticlopidine, valproic acid: increased risk of bleeding Insulin, oral hypoglycemics: increased risk of hypoglycemia

Lithium: increased lithium blood level and risk of nephrotoxicity

Other photosensitizing agents: increased risk of photosensitivity

Probenecid: increased naproxen blood level, increased risk of toxicity

Drug-diagnostic tests. Alanine amino-transferase, alkaline phosphatase, aspartate aminotransferase, blood urea nitrogen, creatinine, lactate dehydroge-nase, potassium: increased levels

Bleeding time: prolonged for up to 4 days after therapy ends

Creatinine clearance, glucose, hematocrit, hemoglobin, leukocytes, platelets: decreased values

Urine 5-hydroxy-indoleacetic acid, urine steroids: test interference

Drug-herbs. Anise, arnica, chamomile, clove, dong quai, fenugreek, feverfew, garlic, ginger, ginkgo, ginseng, licorice: increased anticoagulant effect, increased risk of bleeding

Patient monitoring

• Monitor GI status. Stay alert for signs and symptoms of GI bleeding.

In long-term use, assess CBC with white cell differential and coagulation studies, and monitor for visual and hearing impairment and renal toxicity.

• Monitor cardiovascular status for tachycardia, palpitations, hypertension, and edema.

• Monitor blood glucose level closely in diabetic patients.

Monitor patient for signs and symptoms of serious skin manifestations; discontinue drug at first appearance of rash or other signs of hypersensitivity.

Patient teaching

• Tell patient to take medication with food or milk followed by 8 oz of water, and to stay upright for 30 minutes afterward.

• Inform patient that he may crush or break regular tablets but must swallow delayed- or controlled-release form whole.

• Tell patient that drug's full therapeutic effect may take up to 2 weeks.

• Caution patient not to exceed recommended dosage.

Instruct patient how to recognize and immediately report signs and symptoms of renal toxicity and serious skin manifestations.

• Advise patient to use sunscreen to prevent photosensitivity reaction.

• Instruct patient not to take over-the-counter medications unless prescribed.

• Tell patient to consult prescriber before taking herbs.

• Advise female patient to tell prescriber if she is pregnant or breastfeeding before starting drug.

• As appropriate, review all other significant and life-threatening adverse reactions and interactions, especially those related to the drugs, tests, and herbs mentioned above.


A trademark for the drug naproxen.


a trademark for a nonsteroidal antiinflammatory, antipyretic, and analgesic agent (naproxen).


A brand name for NAPROXEN.
References in periodicals archive ?
The study found no increased cardiovascular risk as a result of using the NSAID naproxen, which is sold over-the-counter as Aleve, Naprosyn, and Anaprox, among other names, and is actually associated with a slightly decreased risk of death.
Amoxicillin * Amoxil, Biomox, Polymox, Trimox, Wymox Cephalexin * Biocef, Keflex Celecoxib * Celebrex Diclofenac/Misoprostol * Arthrotec Ipratropium * Atrovent Labetalol * Trandate Methyldopa * Aldomet Naproxen * Aleve, Anaprox, Naprosyn Nitrofurantoin * Furadantin, Macrobid, Macrodantin Rofecoxib * Vioxx Tiotropium * Spiriva Tolmetin * Tolectin Triamcinalone * Aristocort, Atolone, Kenacort Sulfamethoxazole/Trimethoprim * Bactrim, Cotrim, Septra, Sulfatrim Sulfisoxazole * Gantrisin
Aleve is naproxen sodium, a fast acting form of the best-selling prescription arthritis drug Naprosyn.
The drug is a nonprescription strength version of Anaprox (naproxen sodium), a fast-acting form of the medicine in the prescription arthritis drug Naprosyn, the top selling brand in its class for a decade.
Aleve is an over-the-counter version of Anaprox (naproxen sodium), a fast-acting form of the medicine in the prescription arthritis drug Naprosyn, the No.
s earnings outlook is clouded by patent expirations of its key Naprosyn (naproxen) and Anaprox (naproxen sodium) antiarthritic drugs in December 1993.
Naproxen has been sold as a prescription arthritis drug under the trade name Naprosyn since 1976, and naproxen sodium has been sold as a prescription medication under the name Anaprox since 1980.
s continued push to get the powerfulpainkiller Naprosyn (naproxen) on the O-T-C market.