Naproxen is a nonsteroidal anti-inflammatory drug (NSAID), which relieves pain and swelling (inflammation). It is used to treat headaches, muscle aches, backaches, tendonitis, bursitis, dental pain, menstrual cramps, arthritis, or gout. This medication is also used to reduce fever and to relieve minor aches and pain due to the common cold or flu. This drug works by blocking the enzyme in your body that makes prostaglandins. Decreasing prostaglandins helps to reduce pain, swelling, and fever. Do not give nonprescription products containing this medication to a child younger than 12 years of age unless directed to do so by the doctor.
Take this medication by mouth with a full glass (8 oz or 240 ml) of water unless your doctor directs you otherwise. Do not lie down for at least 30 minutes after taking this drug. If stomach upset occurs while taking this medication, take it with food, milk, or an antacid. The dosage is based on your medical condition and response to therapy. In certain conditions (e.g., arthritis), it may take up to two weeks, taken regularly, before the full benefits of this drug take effect. If you are taking this drug on an "as needed" basis (not on a regular schedule), remember that pain medications work best if they are used as the first signs of pain occur. If you wait until the pain has significantly worsened, the medicine may not work as well. If you use this medication for migraine headache, and the pain is not relieved or worsens after the first dose, tell your doctor immediately. For nonprescription products: If you are treating yourself or giving this medication to a child for undiagnosed fever or pain, consult the doctor immediately if symptoms do not improve within 24 hours, worsen or last for more than 3 days, or if new symptoms appear.
Upset stomach, nausea, vomiting, heartburn, headache, diarrhea, constipation, drowsiness, and dizziness may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Tell your doctor immediately if any of these serious side effects occur: stomach pain, swelling of the hands or feet, sudden or unexplained weight gain, ringing in the ears (tinnitus). Tell your doctor immediately if any of these unlikely but serious side effects occur: vision changes, rapid or pounding heartbeat, easy bruising or bleeding. Tell your doctor immediately if any of these highly unlikely but very serious side effects occur: change in amount of urine, severe headache, very stiff neck, mental/mood changes, persistent sore throat or fever. This drug may infrequently cause serious (rarely fatal) bleeding from the stomach or intestines. If you notice any of the following unlikely but very serious side effects, stop taking naproxen and consult your doctor or pharmacist immediately: black stools, persistent stomach/abdominal pain, vomit that looks like coffee grounds. This drug may rarely cause serious (possibly fatal) liver disease. If you notice any of the following highly unlikely but very serious side effects, stop taking naproxen and consult your doctor or pharmacist immediately: yellowing eyes and skin, dark urine, unusual/extreme tiredness. An allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include: rash, itching, swelling, severe dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: severe kidney disease, allergies to aspirin or other NSAIDs (e.g., ibuprofen, celecoxib). Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, liver disease, poorly controlled diabetes, stomach problems (e.g., bleeding, ulcers), heart disease (e.g., congestive heart failure), high blood pressure, swelling (edema, fluid retention), dehydration, blood disorders (e.g., anemia), bleeding or clotting problems, asthma, growths in the nose (nasal polyps), history of an allergic reaction with symptoms of lip/tongue/throat swelling (angioedema), any allergies in addition to those listed above. This medication contains salt (sodium). Tell your doctor if you are on a salt-restricted diet. This drug may make you dizzy or drowsy; use caution engaging in activities requiring alertness such as driving or using machinery. Limit alcoholic beverages. This medicine may cause stomach bleeding. Daily use of alcohol and tobacco, especially when combined with this medicine, may increase your risk for stomach bleeding. Consult your doctor or pharmacist for more information. This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths or sunlamps. Use a sunscreen and wear protective clothing when outdoors. Caution is advised when using this drug in the elderly because they may be more sensitive to the side effects of the drug, especially stomach bleeding and kidney effects. This medication should be used only when clearly needed during the first 6 months of pregnancy. It is not recommended for use during the last 3 months of pregnancy due to the potential for fetal harm and interference with normal labor/delivery. Discuss the risks and benefits with your doctor. This drug passes into breast milk. While there have been no reports of harm to nursing infants, consult your doctor before breast-feeding.
If overdose is suspected, contact your local poison control center or emergency room immediately. Canadian residents should call their local poison control center directly. Symptoms of overdose may include: severe stomach pain, coffee ground-like vomit, unusually fast or slow heartbeat, trouble breathing, extreme drowsiness, loss of consciousness, or seizures.
Do not share this medicine with others for whom it was not prescribed. Do not use this medicine for other health conditions. Keep this medicine out of the reach of children.
The above information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist, or other healthcare professional. It should not be construed to indicate that the use of the product is safe, appropriate, or effective for you. Consult your healthcare professional before taking the product.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription products you may use, especially of: oral bisphosphonates (e.g., alendronate), other medications for arthritis (e.g., aspirin, methotrexate), "blood thinners" (e.g., warfarin), corticosteroids (e.g., prednisone), cyclosporine, high blood pressure drugs (including ACE inhibitors such as captopril, angiotensin II receptor antagonists such as losartan, and beta-blockers such as metoprolol), lithium, probenecid, "water pills" (diuretics such as furosemide, hydrochlorothiazide, triamterene). This product can affect the results of certain lab tests. Make sure laboratory personnel and your doctors know you use this drug. Check all prescription and nonprescription medicine labels carefully since many contain pain relievers/fever reducers (NSAIDs such as aspirin, celecoxib, ibuprofen) which are similar to this drug and if taken together may increase your risk for side effects. Low-dose aspirin, as prescribed by your doctor for specific medical reasons such as heart attack or stroke prevention (usually these dosages are 81-325 mg per day), should be continued. Consult your doctor or pharmacist for more details. Do not start or stop any medicine without doctor or pharmacist approval.