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Naprosyn Side Effects

Common side effects of Naprosyn may include heartburn, drowsiness, dizziness, or constipation. There are also some side effects of this medicine that require immediate medical attention, such as shortness of breath, slurred speech, and weakness on one part of your body. Some of the drug's rare side effects include heart palpitations, insomnia, and hair loss.

An Introduction to Naprosyn Side Effects

As with any medicine, there are possible side effects with Naprosyn® (naproxen). However, not everyone who takes the medicine will experience side effects. In fact, most people tolerate Naprosyn well. When people do develop Naprosyn side effects, they are generally minor and either require no treatment or can easily be treated by you or your healthcare provider.
(The side effects discussed below are not a complete list of side effects reported with Naprosyn. Your healthcare provider can discuss a more complete list with you.)

Common Side Effects of Naprosyn

Naprosyn has been studied extensively in clinical trials, with thousands of people worldwide having been evaluated. In these studies, side effects are always documented and compared to those that occur in a similar group of people not taking the medicine.
This way, it is possible to see what side effects occur, how often they appear, and how they compare to the group not taking the medicine.


Based on these studies, the most common Naprosyn side effects, occurring in more than 3 percent of patients, include:
  • Heartburn
  • Abdominal pain (or stomach pain)
  • Nausea
  • Constipation
  • Headache
  • Dizziness
  • Drowsiness
  • Itching
  • Unexplained rash
  • Ringing in the ears (tinnitus)
  • Swelling.
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Naprosyn Medication Information

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