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Sulindac tablets - a non-steroidal anti-inflammatory drug

NSAID

Clinical author's note Michael Stewart 19/02/2025: Sulindac tablets were discontinued in the UK in 2024. At the time of review there are no branded or generic products containing sulindac available in the UK. Sulindac may still be available in other countries. This medicine leaflet is based on medical information available in the UK at the time of writing and is left here for reference purposes. Please also refer to the manufacturer's information supplied with your medicine.

Sulindac is a non-steroidal anti-inflammatory drug (also known as an NSAID).

Tell your doctor if you have ever had an allergic reaction to any other anti-inflammatory medicines.

Take the tablets after a meal or with a snack.

At a glance

  • Sulindac is a non-steroidal anti-inflammatory drug (NSAID) used to relieve pain and reduce inflammation.

  • It is available as tablets and is typically taken twice a day with food.

  • Tell your doctor about health conditions you have or other medicines you take before starting sulindac.

  • Taking the lowest dose for the shortest time helps reduce side-effects.

  • If you have asthma and your breathing gets worse, stop taking sulindac and see your doctor.

  • Stop taking sulindac and contact your doctor if you have breathing difficulties, severe allergic reactions, or stomach bleeding.

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About sulindac

Type of medicine

Non-steroidal anti-inflammatory drug (NSAID)

Used for

Pain and inflammation in rheumatic disease and other muscle and joint conditions

Available as

Tablets

Anti-inflammatory painkillers like sulindac are sometimes called non-steroidal anti-inflammatory drugs (NSAIDs), or just 'anti-inflammatories'. Sulindac eases pain and reduces inflammation in rheumatic disease and other conditions where there is pain and swelling in the muscles or joints, such as gout.

Sulindac works by blocking the effect of chemicals 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.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking sulindac, it is important that your doctor or pharmacist knows:

  • 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 under 18 or over 65 years of age.

  • If you have liver or kidney problems.

  • If you have ever had kidney stones.

  • If you have a heart condition, or 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 systemic lupus erythematosus (an inflammatory condition also called lupus, or SLE).

  • If you are taking other medicines, including those available to buy without a prescription, as well as herbal and complementary medicines.

  • If you have ever had an allergic reaction to any other NSAID (such as aspirin, ibuprofen, diclofenac, and indometacin), or to any other medicine.

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  • Before you start taking sulindac, read the manufacturer's printed information leaflet from inside the pack. The leaflet will give you more information about the tablets and provide a full list of side-effects which you may experience from taking them.

  • Take sulindac exactly as your doctor has told you to. The usual dose is 200 mg taken twice a day. Your dose will be on the label of the pack to remind you.

  • Swallow the tablets with a drink of water

  • Take your doses with a snack or just after eating a meal, and drink plenty of water while you are on sulindac.

  • Try to take your doses at the same times each day, as this will help you to remember to take them.

  • If you forget to take a dose, take it as soon as you remember. However, if when you remember, it is nearly time for your next dose then leave out the forgotten dose. Do not take two doses together to make up for a missed dose.

  • Your doctor will try to prescribe you the lowest dose for the shortest time to reduce the risk of side-effects. Your doctor may also want to prescribe another medicine along with it to protect your stomach from irritation.

  • If you are taking sulindac for gout and your symptoms have not improved within seven days, you should let your doctor know about this.

  • Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress.

  • Some people taking sulindac have noticed that the colour of their urine changes slightly. If this happens to you, it is nothing you need to be concerned about.

  • If you have asthma, symptoms such as wheeze or breathlessness can be made worse by anti-inflammatories such as sulindac. If this happens to you, you should stop taking the tablets and see your doctor as soon as possible.

  • If you buy any medicines, check with a pharmacist that they are safe to take with an anti-inflammatory like sulindac.

  • If you are having an operation or dental treatment, tell the person carrying out the treatment which medicines you are taking.

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Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. These usually improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following side-effects continue or become troublesome.

Common sulindac side-effects

What can I do if I experience this?

Feeling sick (nausea) or being sick (vomiting), diarrhoea

Stick to simple foods. Drink plenty of liquid to replace any lost fluids

Indigestion, heartburn, tummy (abdominal) discomfort

Remember to take the tablets after a meal if you are not already doing so. If the discomfort continues, speak with your doctor

Other less common side-effects: headache, feeling dizzy or sleepy, nervousness, mood changes, difficulty sleeping, a spinning sensation (called vertigo), and ringing noises (called tinnitus)

If any of these become troublesome, speak with your doctor

Important: if you experience any of the following less common but more serious symptoms, stop taking this medicine 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, bring up (vomit) blood, or have severe tummy (abdominal) pains.

If you experience any other symptoms which you think may be due to this medicine, speak with your doctor or pharmacist.

  • Keep 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

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 at once. 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.

Never 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.

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Unsure about mixing medicines?

Check for possible interactions between medicines, supplements and foods before taking them together.

Frequently asked questions

How does sulindac help with pain and inflammation?

Sulindac works by blocking certain chemicals called cyclo-oxygenase (COX) enzymes. These enzymes are involved in making prostaglandins, which cause pain and inflammation at sites of injury or damage. By blocking COX enzymes, fewer prostaglandins are produced, which then helps to ease the pain and reduce inflammation.

Can I take sulindac if I have a pre-existing medical condition?

Before taking sulindac, it's important to tell your doctor or pharmacist about any existing medical conditions. This includes conditions like asthma, stomach ulcers, inflammatory bowel disorders, kidney or liver problems, heart conditions, high blood pressure, blood clotting issues, or if you are pregnant or breastfeeding. They will assess if sulindac is suitable for you or if extra care is needed.

What should I do if I forget a dose of sulindac?

If you forget to take a dose, take it as soon as you remember. However, if it's nearly time for your next dose, then you should skip the missed dose entirely. Do not take two doses together to try and make up for one that you missed.

Will taking sulindac affect the colour of my urine?

Yes, some people taking sulindac have noticed a slight change in the colour of their urine. This is mentioned as nothing to be concerned about.

Can I take other medications, including over-the-counter ones, while on sulindac?

It's important to tell your doctor or pharmacist about all other medicines you are taking, including those bought without a prescription, as well as any herbal or complementary medicines. Also, if you buy any new medicines, check with a pharmacist to ensure they are safe to take with an anti-inflammatory like sulindac.

What are the common side effects of sulindac and how can I manage them?

Common side effects include feeling sick or being sick, diarrhoea, indigestion, heartburn, and tummy discomfort. To help with feeling sick or diarrhoea, stick to simple foods and drink plenty of liquids. For indigestion or tummy discomfort, ensure you take the tablets after a meal. If these issues continue or become bothersome, you should speak with your doctor.

Are there any serious side effects of sulindac I should be aware of?

Yes, there are some less common but more serious symptoms that require immediate medical attention. You should stop taking sulindac and contact your doctor straight away if you experience breathing difficulties (like wheezing or breathlessness), signs of an allergic reaction (such as swelling around your mouth or face, or a severe itchy skin rash), or if you pass blood or black stools, vomit blood, or have severe tummy pains.

Can I take more than the prescribed dose of sulindac if my pain is severe?

No, you should never take more than the prescribed dose of sulindac. If you suspect that you or someone else has taken an overdose, you should go to the accident and emergency department of your local hospital immediately. Remember to take the medicine container with you.

Further reading and references

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About the authorView full bio

Author image

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 reviewer

Author image

Sid Dajani

Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.

Article history

The information on this page is written and peer reviewed by qualified clinicians.

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