Naproxen-500 Tablet is a pain-relieving medication used to relieve pain and inflammation in various conditions. It is best taken with food to avoid stomach upset and side effects. Common side effects include indigestion, abdominal pain, nausea, headache, rash, bruises, and edema. It is generally safe but not suitable for everyone. Before taking it, inform your doctor about any kidney problems, asthma, blood disorders, or alcohol consumption, and inform them of other medications.