Naproxen sodium is a nonsteroidal anti-inflammatory drug (NSAID) that is used for the treatment of pain, inflammation, and fever. While it can be effective in relieving these symptoms, it can also cause a range of side effects.

Common side effects of naproxen sodium include:

Upset stomach, heartburn, nausea, and indigestion

Dizziness, headache, and drowsiness

Rashes and itching

Blurred vision

Ringing in the ears

Serious side effects of naproxen sodium are possible, including:

Stomach ulcers and bleeding, which can occur when the medication is taken for a long time or in high doses. Symptoms of a stomach ulcer may include abdominal pain, bloating, and black or tarry stools.

Kidney problems, which can occur when the medication is taken in high doses or for a long time. Symptoms of kidney problems may include swelling of the legs and ankles, decreased urination, and dark colored urine.

Liver problems, which can occur when the medication is taken in high doses or for a long time. Symptoms of liver problems may include yellowing of the skin or eyes, abdominal pain, and fatigue.

An increased risk of heart attack or stroke, especially when the medication is taken in high doses or for a long time.

It is important to use naproxen sodium exactly as directed by a healthcare provider and to be aware of any potential side effects. If you experience any of the above symptoms while taking naproxen sodium, you should immediately contact your healthcare provider. Additionally, if you have any underlying medical conditions, such as a history of stomach problems, kidney disease, or liver disease, you should use naproxen sodium with caution and inform your healthcare provider.

People who are taking blood-thinning medications or have a history of bleeding disorders should also use naproxen sodium with caution. If you have any questions or concerns about the side effects of naproxen sodium, it is best to consult with a healthcare provider.