Naproxen tablets for pain and inflammation
Naprosyn, Nexocin, Stirlescent
Peer reviewed by Dr Colin Tidy, MRCGPLast updated by Michael Stewart, MRPharmSLast updated 27 Apr 2023
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Naproxen is a medicine called a non-steroidal anti-inflammatory drug. It is also known as 'an NSAID'.
Before you take naproxen, let your doctor know if you have ever had a bad reaction to any other anti-inflammatory painkiller.
The most common side effects of naproxen include stomach pain, heart burn, headache, and dizziness.
Make sure you take naproxen as directed on the label of the pack. Your dose will depend upon your condition and the brand of tablet prescribed.
At a glance
Naproxen is an anti-inflammatory painkiller used for conditions like arthritis, sprains and period pain.
It is available on prescription, and some types can be bought at pharmacies for period pain.
Common side effects include stomach pain, indigestion, feeling sick, and dizziness.
Take naproxen with food or milk to help reduce stomach upset.
Do not take naproxen if you have asthma, an ulcer, or certain heart or kidney conditions.
If you have breathing difficulties, signs of an allergic reaction, or pass blood, stop taking naproxen and see a doctor immediately.
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About naproxen
Type of medicine | Non-steroidal anti-inflammatory drug (NSAID) |
Used for | Relief of pain and inflammation |
Also called | Naprosyn®; Nexocin®; Stirlescent® Vimovo® (naproxen in combination with esomeprazole) |
Available as | Tablets, effervescent (soluble) tablets and oral liquid medicine |
What is naproxen used for?
Back to contentsNaproxen is a type of anti-inflammatory painkiller called non-steroidal anti-inflammatory drugs (NSAIDs), or just 'anti-inflammatories'.
It is used to treat painful conditions such as arthritis, sprains and strains, backache, period (menstrual) cramps, and gout pain.
Naproxen is available on prescription. Short courses of tablets for the treatment of period pain are also available to buy at pharmacies.
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How does naproxen work?
Back to contentsNaproxen works by blocking the effect of chemicals in your body, called cyclo-oxygenase (COX) enzymes. These enzymes help to make other chemicals in the body, called prostaglandins.
Some prostaglandins are produced at sites of injury or damage, and cause pain and inflammation. By blocking the effect of COX enzymes, fewer prostaglandins are produced, which means pain and inflammation are eased.
Side effects of naproxen
Back to contentsCommon side effects of naproxen are:
Stomach pain.
Indigestion.
Heartburn (reflux)
Feeling sick.
Being sick.
Dizziness.
Headache.
Diarrhoea.
Constipation.
You will find a full list in the manufacturer's information leaflet supplied with your medicine.
The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.
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How to manage naproxen side effects
Back to contentsNaproxen side effects | What can I do if I experience this? |
Indigestion, heartburn, stomach pain | If the discomfort continues, speak with your doctor |
Feeling sick (nausea) or being sick (vomiting) | Stick to simple meals - avoid rich or spicy foods |
Diarrhoea or constipation | Drink plenty of water |
Important: if you experience any of the following less common but more serious symptoms, stop taking naproxen and contact your doctor for advice straightaway:
If you have any breathing difficulties such as wheeze or breathlessness.
If you have any signs of an allergic reaction such as swelling around your mouth or face, or a severe itchy skin rash.
If you pass blood or black stools, vomit blood, or have severe tummy (abdominal) pains.
If you experience any other symptoms which you think may be due to this medicine, call your doctor or pharmacist for further advice.
Who should not take naproxen?
Back to contentsSome medicines aren’t suitable for everyone. Before taking naproxen, your doctor or pharmacist needs to know:
If you have asthma or any other allergic disorder.
If you have ever had a stomach or duodenal ulcer, or if you have an inflammatory bowel disorder such as Crohn's disease or ulcerative colitis.
If you are pregnant, trying for a baby, or breastfeeding.
If you are over 65 years of age.
If you have liver problems or kidney disease.
If you have a heart condition, are at higher risk of heart attack, or have had a problem with your blood vessels or circulation.
If you have high blood pressure.
If you have ever had blood clotting problems.
If you have high blood sugar or cholesterol levels.
If you are a smoker.
If you have a connective tissue disorder, such as systemic lupus erythematosus (an inflammatory condition also called lupus, or SLE).
If you are taking any other medicines. This includes any medicines you are taking which are available to buy without a prescription, as well as herbal and complementary medicines.
If you have ever had an allergic reaction to aspirin or other NSAID (such as indometacin, diclofenac, and ibuprofen), or to any other medicine.
How to take naproxen
Back to contentsBefore you start taking naproxen, read the manufacturer's printed information leaflet from inside the pack for information about your tablets and a full list of side effects which you may experience from taking them.
Make sure you take the tablets exactly as your doctor or pharmacist tells you to:
Long-term conditions (such as arthritis): 500 mg-1 g daily, as one or two doses.
Short-term pain (muscle pain, sprains, period pain): usually 250 mg, taken 3-4 times daily. First dose may be 500 mg.
For gout, the usual dose is 750 mg for the first dose, and then 250 mg every eight hours until the attack has passed.
If you have bought naproxen over the counter for period pain, take 250 mg three times daily, for a maximum of three days.
The dose of Vimovo® is one tablet twice daily before meals.
Doses for children depend upon the age of the child.
Take with food, milk, or water to reduce stomach upset (except Vimovo®, which should be taken 30 minutes before a meal).
Some brands of naproxen are specially coated (enteric-coated (EC) tablets) to protect your stomach from irritation. Do not chew or break the tablets, as this will stop the coating from working properly.
For enteric-coated (EC) tablets, avoid antacids 2 hours before and after taking them.
If you miss a dose, take it as soon as you remember unless it’s almost time for your next dose. Do not take two doses together.
Getting the most from your treatment
Back to contentsYour doctor will prescribe the lowest dose for the shortest time to reduce side effects.
For long-term use you may be given another medicine to protect your stomach, or a combination product such as Vimovo®, which includes stomach protection.
Keep regular appointments with your doctor, especially if you are taking naproxen long term.
If you have asthma and develop wheezing or breathing problems, stop taking naproxen and see your doctor as soon as possible.
Check with a pharmacist before taking other medicines. Do not take naproxen with other anti-inflammatory painkillers, including some cold and flu remedies.
If you are having an operation or dental treatment, tell the person carrying out the treatment which medicines you are taking.
How to store naproxen tablets
Back to contentsKeep all medicines out of the reach and sight of children.
Store in a cool, dry place, away from direct heat and light.
Important information about all medicines
Back to contentsImportant information about all medicines
Never take more than the prescribed dose. If you suspect that you or someone else might have taken an overdose of this medicine, go to the accident and emergency department of your local hospital. Take the container with you, even if it is empty.
This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.
Do not keep out-of-date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.
If you have any questions about this medicine ask your pharmacist.
Report side effects to a medicine or vaccine
If you experience side effects, you can report them online through the Yellow Card website.
Frequently asked questions
Back to contentsHow long does it take for naproxen to work?
Naproxen usually starts to work within 1-2 hours of taking it, with the effects typically lasting for 8 to 12 hours. For chronic inflammation, pain and swelling usually begin to improve after a week of regular use.
Can you drink alcohol with naproxen?
Yes, you can drink alcohol with naproxen, however it can increase the risk of stomach irritation and bleeding. It is best to avoid or limit alcohol until your treatment is finished.
Is it safe to take naproxen during pregnancy?
Naproxen is not recommended during pregnancy, especially after 20 weeks, as it may harm the unborn baby. Only take it if your doctor specifically advises it.
Can you take paracetamol with naproxen?
Yes. You can take paracetamol with naproxen for pain relief. Do not combine naproxen with other anti-inflammatory painkillers.
Is naproxen addictive?
No. Naproxen is not addictive and does not cause dependence when taken as directed.

Unsure about mixing medicines?
Check for possible interactions between medicines, supplements and foods before taking them together.
Frequently asked questions
What is the difference between prescription naproxen and the kind I can buy over the counter?
Naproxen is available on prescription for various painful conditions. You can also buy short courses of naproxen tablets from pharmacies specifically for the treatment of period pain. The dosage and duration of treatment may differ between prescription and over-the-counter options.
Are there any specific lifestyle factors or conditions that might make naproxen unsuitable for me?
Yes, several factors can make naproxen unsuitable. Your doctor or pharmacist needs to know if you have asthma, allergic disorders, a history of stomach or duodenal ulcers, inflammatory bowel disorders, liver or kidney problems, a heart condition, high blood pressure, blood clotting issues, high blood sugar or cholesterol, or if you are a smoker. It's also important to mention if you have a connective tissue disorder like systemic lupus erythematosus, or if you are pregnant, trying for a baby, or breastfeeding.
How should I take naproxen to minimise stomach upset, especially if I don't have the specially coated tablets?
To reduce stomach upset, you should generally take naproxen with food, milk, or water. If you are taking Vimovo®, which combines naproxen with esomeprazole for stomach protection, it should be taken 30 minutes before a meal.
What should I do if I miss a dose of naproxen?
If you miss a dose, take it as soon as you remember, unless it is almost time for your next scheduled dose. In that case, skip the missed dose and continue with your regular dosing schedule. Do not double up on doses to make up for a missed one.
Can I take other medicines with naproxen, such as cold and flu remedies?
You should check with a pharmacist before taking any other medicines with naproxen. It is particularly important not to take naproxen with other anti-inflammatory painkillers, which can be found in some cold and flu remedies. If you are having an operation or dental treatment, inform the person carrying out the treatment about all the medicines you are taking.
What should I do if my doctor prescribes naproxen for a long-term condition?
For long-term use, your doctor will aim to prescribe the lowest effective dose for the shortest possible time to reduce side effects. You may also be given another medicine to protect your stomach, or a combination product like Vimovo® which already includes stomach protection. It's important to keep regular appointments with your doctor for monitoring if you are taking naproxen long term.
How should I dispose of any leftover or expired naproxen?
Do not keep out-of-date or unwanted medicines. You should take them to your local pharmacy, which will dispose of them for you safely.
Further reading and references
- Manufacturer’s PIL, Naproxen 250 mg and 500 mg Tablets; Strides Pharma UK Limited, The electronic Medicines Compendium. Dated December 2022.
- Manufacturer’s PIL, Vimovo® 500 mg/20 mg modified-release tablets; AstraZeneca UK Limited, The electronic Medicines Compendium. Dated February 2023.
- Manufacturer's PIL, Naproxen 50 mg/ml oral suspension; Thornton and Ross Ltd, The electronic Medicines Compendium. Dated June 2020.
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About the authorView full bio

Michael Stewart, MRPharmS
Medicine Leaflet Review Manager – Contractor, Pharmacist
BPharm (Hons), MRPharmS
Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.
About the reviewerView full bio

Dr Colin Tidy, MRCGP
General Practitioner, Medical Author
MBBS, MRCGP, MRCP (Paediatrics), DCH
Dr Colin Tidy is an NHS Doctor, based in Oxfordshire.
Article history
The information on this page is written and peer reviewed by qualified clinicians.
Next review due: 22 Oct 2027
27 Apr 2023 | Latest version

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