Symptoms of naproxen sodium overdose include:
- Blurred vision
- Convulsions (seizures)
- Headache – severe
- Incoherence (the person is not understandable)
- Movement problems
- Ringing in the ears
- Slow, labored breathing
- Stomach pain (possible bleeding in the stomach and intestines)
Another symptom that wasn’t mentioned is death. I think that’s always a possibility worth noting. With the symptoms listed though, it’s never a good thing.
Goldfrank LR, ed. Goldfrank’s Toxicologic Emergencies. 9th ed. New York, NY: McGraw Hill; 2011.
Seger DL, Murray L. Aspirin and nonsteroidal agents. In: Marx JA, Hockberger RS, Walls RM, et al, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 149.