Naprosyn, a nonsteroidal anti-inflammatory drug, is used to relieve the inflammation, swelling, stiffness, and joint pain associated with rheumatoid arthritis, osteoarthritis (the most common form of arthritis), juvenile arthritis, ankylosing spondylitis (spinal arthritis), tendinitis, bursitis, and acute gout; it is also used to relieve menstrual cramps and other types of mild to moderate pain.
		You should have frequent checkups with your doctor if you take Naprosyn regularly. Ulcers or internal bleeding can occur without warning.
		Naprosyn may be taken with food or an antacid, and with a full glass of water to avoid stomach upset. Avoid taking it on an empty stomach. If you are using Naprosyn for arthritis, it should be taken regularly; take it exactly as prescribed. Do not break, crush, or chew an EC-Naprosyn tablet. * If you miss a dose... And you take the drug on a regular schedule, take the dose as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Do not take 2 doses at once. * Storage instructions... Store at room temperature in a well-closed container. Protect from light and extreme heat.
		Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Naprosyn. * More common side effects may include... Abdominal pain, bruising, constipation, difficult or labored breathing, dizziness, drowsiness, headache, heartburn, itching, nausea, ringing in ears, skin eruptions, swelling due to fluid retention. * Less common or rare side effects may include... Abdominal bleeding, black stools, blood in the urine, changes in liver function, chills and fever, colitis, congestive heart failure, depression, diarrhea, dream abnormalities, general feeling of illness, hair loss, hearing disturbances or loss, inability to concentrate, inability to sleep, indigestion, inflammation of the lungs, inflammation of the mouth, kidney disease or failure, light-headedness, menstrual disorders, muscle pain and weakness, peptic ulcer, red or purple spots on the skin, severe allergic reaction, skin inflammation due to sensitivity to light, skin rashes and hives, skin peeling, sweating, thirst, throbbing heartbeat, vertigo, visual disturbances, vomiting, vomiting of blood, yellow skin and eyes.
		If you are sensitive to or have ever had an allergic reaction to Naprosyn, EC-Naprosyn, Anaprox, Anaprox DS, or Aleve, you should not take this drug. Also, if aspirin or other nonsteroidal anti-inflammatory drugs have ever given you asthma or nasal inflammation or tumors, you should not take this medication. Make sure your doctor is aware of any drug reactions you have experienced.
		Remember that peptic ulcers and bleeding can occur without warning. Call your doctor immediately if you suspect a problem. Use this drug with caution if you have kidney or liver disease; it can cause liver or kidney problems in some people. Naprosyn may prolong bleeding time. If you are taking blood-thinning medication, your doctor will prescribe Naprosyn with caution. By reducing fever and inflammation, Naprosyn may hide an underlying condition. This medication may cause vision problems. If you experience any changes in your vision, inform your doctor. This drug can increase water retention. It will be prescribed with caution if you have heart disease or high blood pressure. Naprosyn suspension contains a significant amount of sodium. If you are on a low-sodium diet, discuss this with your doctor. Naprosyn may cause you to become drowsy or less alert; therefore, avoid driving, operating dangerous machinery, or participating in any hazardous activity that requires full mental alertness until you are sure of the drug's effect on you.
		If Naprosyn is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Naprosyn with the following: ACE inhibitors such as the blood-pressure drug Zestril Aspirin Beta blockers such as the blood-pressure drug Tenormin Blood-thinning drugs such as Coumadin Furosemide (Lasix) Lithium (Eskalith, Lithobid) Methotrexate Naproxen sodium (Aleve, Anaprox) Oral diabetes drugs such as Diabinese and Micronase Phenytoin (Dilantin) Probenecid (Benemid) Sulfa drugs such as the antibiotics Bactrim and Septra EC-Naprosyn should not be used with antacids, H2 blockers such as Tagamet, or sucralfate (Carafate).
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