What are the possible side effects of Aleve Gelcap (Naproxen)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop taking naproxen and seek medical attention or call your doctor at once if you have any of these serious side effects: chest pain, weakness, shortness of breath, slurred speech, problems with vision or balance black, bloody, or tarry stools coughing up blood or vomit that looks like coffee grounds swelling or rapid weight gain urinating less than usual or not at all nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes) fever, sore throat, and headache with a severe blistering, peeling, and red skin rash bruising, severe tingling, numbness, pain, muscle weakness; or fever, headache, neck stiffness, chills, increased sensitivity to light, purple spots on the skin, and/or seizure (convulsions) Keep taking naproxen and talk to your doctor if you have any of t
