Potential side effects:
- Stop using this medicine and check with your doctor immediately if any of the following side effects occur:
- an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives)
- muscle cramps, numbness, or tingling
- ulcers (open sores) in the mouth
- rapid weight gain (fluid retention)
- seizures
- black, bloody, or tarry stools
- blood in your urine or vomit
- decreased hearing or ringing in the ears
- yellowing of your skin or eyes (jaundice)
- abdominal cramping, heartburn, or indigestion
- Continue medication and talk to your doctor if you experience:
- dizziness or headache
- nausea, gaseousness, diarrhea, or constipation
- depression
- fatigue or weakness
- dry mouth
- irregular menstrual periods
U.S.:
- Aleve
- Anaprox
- Anaprox DS
- EC-Naprosyn
- Naprelan
- Naprosyn
Canada:
- Anaprox
- Anaprox DS
- Apo-Napro-Na
- Apo-Napro-Na DS
- Apo-Naproxen
- Naprosyn
- Naprosyn-E
- Naprosyn-SR
- Naxen
- Novo-Naprox
- Novo-Naprox Sodium
- Novo-Naprox Sodium DS
- Nu-Naprox
- Synflex
- Synflex DS

