Medbroadcast  Powered by MediResource

 Browse alphabetically
Family & Child Health
Men's Health
Women's Health
Seniors' Health
Ankylosing Spondylitis
Arthritis (Rheumatoid)
Atrial Fibrillation
Baby Health
Back Health
Bladder (Overactive)
Brain Health
Childhood Vaccinations
Crohn's & Colitis
Cold and Flu
Cosmetic Procedures
Depression NEW!
Digestive Health
Ear Health
Eating Disorders
Eye Health
Flu (Seasonal)
Healthy Skin
High Blood Pressure
Kidney Health
Low Testosterone NEW!
Lung Health
Medications and your Health
Mental Health
Multiple Sclerosis NEW!
Natural and Complementary Therapy
Oral Care
Osteoarthritis of the Knee NEW!
Psoriatic Arthritis (PsA)
Seasonal Health
Sexual Health
Sleep Health
Stroke Risk Reduction
Weight Management
Workplace Health
Yeast Infection
All health channels

Ask an Expert
Clinical Trials
Find a Specialist
Health features

Condition Info Drug Info Tests and Procedures Natural Products Ask an Expert Support Groups Clinical Trials
Home Bookmark Page Send to a Friend Sante Chez Nous Subscribe
Drug Info > A > Apo-Napro-Na
Please enter the drug name or
DIN (Drug Identification Number)


Search by first letter


Brand Name


Common Name
naproxen sodium

In this drug factsheet:

DIN (Drug Identification Number)


How does this medication work? What will it do for me?

Naproxen sodium belongs to a group of medications called nonsteroidal anti-inflammatory drugs (NSAIDs). It reduces swelling, inflammation and pain, and is used for the relief of mild to moderately severe pain accompanied by inflammation.

Naproxen sodium is used to help relieve pain due to muscle injury, (e.g., bone, muscle, tendon, cartilage, ligament), dental extraction, menstrual cramps, and cramping after childbirth. It is believed to work by stopping the production of prostaglandins, which cause pain and swelling.

This medication may be available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of this medication may not be used for all of the conditions discussed here.

Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.

Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.

People who read this article also read about:

How should I use this medication?

The recommended adult starting dose of naproxen sodium is 550 mg (two 275 mg tablets) followed by one 275 mg tablet every 6 to 8 hours as needed.

Alternatively, one of the 550 mg tablets may be taken twice daily. Do not take more than 1,375 mg per day. The lowest dose for the shortest period of time should be used to reduce the risk of side effects.

Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

It is important to take this medication exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Store this medication at room temperature, protect it from light, and keep it out of the reach of children.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.

What form(s) does this medication come in?

This medication is available as a 275 mg tablet.

Apo-Napro-Na DS
This medication is available as a 550 mg tablet.

Who should NOT take this medication?

Do not take this medication if you:

  • are allergic to naproxen sodium or any ingredients of this medication
  • are allergic to ASA or other NSAIDs (e.g., ibuprofen, ketorolac, diclofenac) or have had allergic symptoms (e.g., runny nose, asthma, itchy skin rash, nasal polyps, swelling of the face, throat, or tongue) caused by these medications
  • are 18 years of age or younger
  • are breast-feeding
  • are currently taking other NSAIDs (e.g., ibuprofen, ketorolac, indomethacin)
  • are going to have or have just had heart bypass surgery
  • are in your third trimester (last 3 months) of pregnancy
  • have a bleeding disorder
  • have a bleeding ulcer in the stomach or intestines
  • have bleeding in the brain
  • have high levels of blood potassium (hyperkalemia)
  • have inflammatory bowel disease (e.g., ulcerative colitis, Crohn's disease)
  • have severely reduced liver function or liver disease
  • have severely reduced or worsening kidney function
  • have severe, uncontrolled heart failure
  • have recently had coronary artery bypass surgery



Did you find what you were looking for on our website? Please let us know.

 Search for information related to

Hot Topics - Bedwetting, Depression, Flu (Seasonal), Healthy Skin, Incontinence, Multiple Sclerosis, Psoriasis, Stroke Risk Reduction

Condition and disease information is written and reviewed by the MedBroadcast Clinical Team.

The contents of this site are for informational purposes only and are meant to be discussed with your physician or other qualified health care professional before being acted on. Never disregard any advice given to you by your doctor or other qualified health care professional. Always seek the advice of a physician or other licensed health care professional regarding any questions you have about your medical condition(s) and treatment(s). This site is not a substitute for medical advice.
© 1996 - 2015 MediResource Inc. - MediResource reaches millions of Canadians each year.