Naprosyn SR (Naproxen)

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Naprosyn SR Brand
Dosage Quantity & Price
Naproxen (Generic alternate to Naprosyn SR) Generic

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Table of contents:

Naprosyn SR is a prescription medication used to relieve pain and inflammation in conditions such as osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, and chronic pain states where there is an inflammatory component.

Naprosyn contains the active ingredient naproxen and is available in various strengths such as 750 Mg Tablet SR. It belongs to the family of medicines called Non-Steroidal Anti-Inflammatory Drugs (NSAIDs). It works by reducing the amount of certain chemicals produced by your body that cause pain and swelling.

Use and Dosage

Naprosyn SR is a medication that is available in the form of sustained-release oral tablets, which are commonly known as SA tablets. These SA tablets are designed to release the medication slowly over a prolonged period, allowing for a steady and consistent dose of the medication to be delivered into the bloodstream.

Take Naprosyn SR orally, typically by swallowing the SA tablet with water. Swallow the tablets whole, and do not crush or chew them. Do not lie down for about 15 minutes to 30 minutes after taking the medication. It is best to take it after a meal, or with food or milk.

The exact dosage and frequency of use will depend on the individual's unique medical circumstances and should be determined by a healthcare provider. Follow the instructions provided by the prescribing physician or listed on the medicine packaging to ensure that the medication is taken correctly and safely. Note that the medication should not be taken more frequently or at higher doses than recommended, as this can increase the risk of experiencing adverse side effects.

Take Naprosyn SR Tablet 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 dose. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Side Effects

Common Side Effects of Naprosyn SR (Naproxen):

  • Abdominal pain
  • Changes in taste
  • Constipation
  • Diarrhea
  • Dizziness
  • Drowsiness
  • Gas
  • Headache
  • Heartburn
  • Increased skin sensitivity to sun
  • Increased thirst
  • Indigestion
  • Lightheadedness
  • Mouth sores
  • Nausea
  • Rash
  • Sweating
  • Upset stomach
  • Vomiting

Serious Side Effects of Naprosyn SR (Naproxen):

  • A rash combined with fever or discomfort
  • Abdominal cramps
  • Anxiety
  • Bladder pain
  • Blistering
  • Blood in the urine
  • Bloody, black, or tarry stools
  • Blurred vision or any change in vision
  • Breathlessness
  • Burning, prickly, or numb sensations
  • Change in urine color or odor
  • Changes in hearing
  • Changes in menstrual periods
  • Changes in sleep
  • Changes in weight
  • Chest pain
  • Chest tightness
  • Confusion
  • Coughing
  • Dark urine
  • Decreased interest in activities
  • Decreased urine production
  • Difficult, burning, or painful urination
  • Difficulty breathing with fever
  • Difficulty concentrating
  • Dizziness
  • Fainting
  • Fast or irregular breathing
  • Fatigue
  • Fluid retention
  • Frequent urge to urinate
  • Hair loss
  • Hearing problems, ringing in the ears
  • Increased urination at night
  • Loss of appetite
  • Loss of bladder control
  • Nausea
  • Nausea and vomiting
  • Nervousness
  • Pale skin
  • Pale stools
  • Peeling
  • Persistent indigestion, nausea, stomach pain, or diarrhea
  • Poor concentration
  • Sensation of fullness of the chest
  • Shortness of breath
  • Signs of anemia (low red blood cells), e.g.:
  • Spinning sensation
  • Spitting up blood
  • Sudden chest pain or pain radiating to back, down arm, jaw
  • Sudden large increase or decrease in the amount of urine
  • Sudden loss of coordination
  • Sudden or severe headache
  • Sudden slurring of speech or unexplained weakness, numbness, or pain in arm or leg
  • Sweating
  • Swelling in the ankles, legs, and feet
  • Swelling of the face and throat
  • Thoughts of suicide
  • Troubled breathing, wheezing, or tightness in chest
  • Unusual tiredness or weakness
  • Vision changes
  • Vomiting blood or material that looks like coffee grounds
  • Weight loss
  • Wheezing
  • Yellowing of the skin or whites of the eyes

Forms and Strength

Naprosyn SR (Naproxen) is available in the following forms and strength:

Naprosyn SR: SA tablet

  • 750mg


  • Naprosyn SR should not be used by individuals who are allergic to naproxen or any other NSAID.
  • It may increase the risk of heart attack or stroke, especially when used for a long time or in high doses.
  • Naprosyn SR should be used with caution in individuals with liver or kidney impairment, as well as those with a history of ulcer or gastrointestinal bleeding.
  • It may interact with other medicines such as anticoagulants (blood thinners), aspirin, and certain antidepressants.
  • Naprosyn SR may cause dizziness, drowsiness, or vision changes, and patients should not drive or operate machinery until they know how the medication affects them.
  • Use of alcohol or tobacco products while taking Naprosyn SR may increase the risk of stomach bleeding and other side effects.
  • Naprosyn SR may not be suitable for use during pregnancy or breastfeeding, and women who are planning to become pregnant should talk to their doctor before taking the medication.

Frequently Asked Questions (FAQ)

Can I take Naprosyn SR if I have liver or kidney disease?

Naprosyn SR should be used with caution in individuals with liver or kidney impairment. Patients with these conditions should consult with their healthcare professional before taking Naprosyn SR, as their dosage may need to be adjusted.

How long does it take for Naprosyn SR to work?

Naprosyn SR may take several weeks to show its maximal effect, and patients should continue taking the medication as directed by their healthcare professional, even if they do not experience immediate relief of symptoms.

Can Naprosyn SR be taken with food?

Naprosyn SR should be taken with food or milk to help prevent stomach upset. Patients should not take Naprosyn SR on an empty stomach.

What should I do if I miss a dose of Naprosyn SR?

If a dose of Naprosyn SR is missed, patients should take the missed dose as soon as they remember. If it is almost time for their next dose, they should skip the missed dose and continue with their regular dosing schedule.


It's important to purchase Naprosyn SR from verified Canadian pharmacy.

Additional information

Generic name:



24H ER Tablet



Quantities Available:



Online Pharmacies Canada has provided information from third parties intended to increase awareness and does not contain all the information about Naprosyn SR (Naproxen). Talk to your doctor or other qualified medical practitioners for medical attention or advice, or if you have any concerns about Naprosyn SR (Naproxen).