Naproxen Side Effects, How it Works, Upsides & Tips

Naproxen is an externally administered medication. It is sold under a number of brand names; usually as a salt of sodium. It belongs to the class of propionic acid in the family of Nonsteroidal Anti Inflammatory drugs (NSAIDs) and is thus used for relieving pain.



Naproxen is used to relieve moderate to severe pain caused due to certain medical conditions including menstrual cramps, headaches, muscle aches, tendonitis, bursitis, and ankylosing spondylitis. Physicians have also been prescribing it for the treatment of stiffness and swelling.

It is available in the form of immediate-release and extended-release formulations.


Side effects of Naproxen:

Naproxen too has some side effects like many other medicines. These range from mild to severe and must be reported immediately.

Some of the common side effects of Naproxen that are considered to be mild in nature are as follows:

  • Indigestion
  • Heartburn
  • Stomach pain
  • Nausea
  • Headaches
  • Dizziness
  • Bruising
  • Signs of an allergic reaction like itching, rashes, swelling, etc.
  • Ringing or buzzing in your ears

Most of these side effects usually occur at the start of the treatment and perish within a day or two as it does not take long for the body to adjust and get accustomed to the presence of the medicine. However, these side effects may persist and start to worsen, thus triggering serious medical conditions. Therefore, seek medical help promptly if any side effect is experienced.



Some of the potential side effects it may cause include:

  • Breathlessness
  • Signs of a heart attack or stroke, e.g., sudden numbness, weakness, slurred speech, chest pain spreading to the jaw and/or shoulders
  • Unexplained weight gain
  • Signs of an allergy
  • Stomach bleeding
  • Bloody stools
  • Vomiting blood
  • Anemia
  • Disturbed urination indication kidney disorder
  • Liver problems
  • Jaundice

Note that other side effects not been enlisted in this guide may also be experienced. Usually, doctors and/or pharmacists inform the patients about the side effects they are likely to experience at the start of their treatment.

For further concerns and queries regarding this, you may consult your doctor and/or pharmacist.


How to use?

Before starting, carefully read all the instructions on the prescription label and follow them.

The medicine is administered orally. It is usually prescribed to be taken twice or thrice a day. However, follow your doctor’s instructions regarding this. Take timely and balanced doses. To avoid stomach upsets, administer the medicine with milk, food, or an antacid. Do not lie down for 10 minutes after taking the medicine.



  • Neither use nor prescribe it to someone without a doctor’s consent.
  • It interacts negatively with certain products and drugs. Therefore, give names of all the medicines, if any, that you use to your doctor.
  • It is not safe for people with certain conditions. Thus, make sure to provide your medical history to your doctor at the start of the treatment to avoid any inconvenience.
  • Inform your doctor immediately if you become pregnant while taking it.
  • Limit alcohol intake.
  • Keep it away from children’s reach, heat, and moisture.