Indomethacin is a non-steroidal anti-inflammatory drug (NSAID) used to treat pain and reduce inflammation (redness, swelling and soreness). It is commonly prescribed for conditions such as osteoarthritis (a condition where the protective cartilage that cushions the ends of your bones wears down over time), rheumatoid arthritis (an autoimmune disease causing inflammation in the joints), gout attacks, muscle, joint pain or back pain, and menstrual pain.
This medication should be taken with meals to reduce stomach irritation.
Follow the instructions on your medication label and take this medication as prescribed by your doctor.
Do not exceed the dose recommended on the label as taking too much Indomethacin over time may cause serious stomach, kidney or heart problems.
Indomethacin can be taken on as needed basis for short term use as prescribed by the doctor.
If your doctor has prescribed the medication for you to be taken regularly, do not stop taking your medication without checking with your healthcare professional. If you forget to take a dose, take it as soon as you remember if it is not close to the next dose. Otherwise, you should skip the dose and take the next dose at the usual time. Do not take two doses together to make up for the missed dose.
Inform your healthcare professional if:
Indomethacin should be used at the lowest effective dose and for the shortest possible time. Prolonged use without medical supervision should be avoided as this may increase the risk of heart attacks or stroke, kidney problems and stomach ulcers. Do not exceed the dose recommended on the label.
If you have any question about this medication, please discuss with your healthcare professional.
Please inform your healthcare professional if you are taking the following medications as Indomethacin can interact with them:
Indomethacin is a NSAID, hence avoid taking together with other NSAIDs (e.g. Ibuprofen, Diclofenac, Ketoprofen).
Avoid taking excessive amounts of alcohol when taking Indomethacin as this will increase the risk of bleeding in the stomach.
Inform your healthcare professional if these side effects do not go away and are bothersome to you.
The symptoms of a drug allergy include one or more of the following:
• Swollen face/eyes/lips/tongue
• Difficulty in breathing
• Itchy skin rashes over your whole body
You can also find out about drug allergies by watching these videos:
They are available in English, 中文, Melayu and தமிழ்: Drug Allergies
Patients taking Indomethacin may have an increased risk of gastrointestinal bleeding (bleeding in the stomach or intestines).
Serious bleeding may include one or more of the following:
• Blood in the urine
• Black sticky stools (if you are not using iron supplements at the same time)
• Unexplained large bruises
• Coughing up blood or coffee ground-like vomit
• Sudden severe headache with nausea or loss of consciousness
If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.
Store in a cool and dry place, away from direct sunlight. Keep this medication away from children.
Pack this medication into a black trash bag and seal it tightly before throwing into the rubbish chute or bin.
Disclaimers
Please take note that the above is not a complete list of all possible side-effects. If you have any concerns about your medication or if you have other side-effects that you think are caused by this medication, please consult your doctor or pharmacist. If you take more than the recommended dose, please seek medical advice immediately. The information provided on this page does not replace information from your healthcare professional. Please consult your healthcare professional for more information.
This article is jointly developed by members of the National Medication Information workgroup. The workgroup consists of cluster partners (NHG Health, National University Health System and SingHealth), community pharmacies (Guardian, Unity and Watsons) and Pharmaceutical Society of Singapore. The content does not reflect drug availability and supply information in pharmacies and healthcare institutions. You are advised to check with the respective institutions for such information.
Last Updated on June 2026
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