Naproxen
Naproxen is an NSAID used for selected painful inflammatory conditions. Listed uses include Osteoarthritis and Rheumatoid Arthritis.
Key points
- It can cause stomach bleeding, kidney injury, fluid retention and cardiovascular events.
- Do not combine it with another NSAID unless directed.
- Black stools, chest pain or very little urine needs urgent care.
Select a listed product and pack to order online. Ask your doctor or pharmacist whether it suits you and what monitoring it needs.
Important safety checks
Ulcer history, kidney, liver or heart disease, asthma, pregnancy and anticoagulants require review.
When to seek urgent care
Seek urgent help for vomiting blood, black stools, chest pain, one-sided weakness, breathing difficulty or very little urine.
Further reading
What is naproxen used for?
Naproxen is an NSAID used for some painful inflammatory conditions, including osteoarthritis, rheumatoid arthritis, inflammatory arthritis of the spine (ankylosing spondylitis) and musculoskeletal pain.
How does naproxen work?
Naproxen works by blocking the production of prostaglandins, which are key messengers in inflammation, so it eases pain and swelling.
What is naproxen called in other countries?
In other countries, naproxen is also sold as Ecxen and Stirlescent. Brand names vary between countries, so compare products by their active ingredient.
How long does naproxen take to work?
Naproxen starts working in about 30 to 60 minutes, and its effect lasts around 8 to 12 hours.
What are the side effects of naproxen?
Common side effects include nausea and headache, and some people also get abdominal pain or constipation. Serious problems include gastrointestinal perforation and anaphylactoid reaction, which need immediate medical attention. It can also cause stomach bleeding, kidney injury, fluid retention and cardiovascular events, so speak to your doctor or pharmacist if you are concerned.
Can naproxen be taken with other medicines?
Naproxen can interact with antihypertensives, water tablets (diuretics) and antidepressants (SSRIs), and it should not be combined with another NSAID unless directed. Ask your doctor or pharmacist before taking it with other medicines.
Which naproxen products can I order on SGMeds?
Products containing naproxen on SGMeds include Naprosyn, Anaprox and Naprelan. Compare their forms, strengths and pack sizes.
How is naproxen priced?
Each product on this page shows a price for each strength and pack size in Singapore dollars, converted from US dollars, so the exchange rate can change the final amount. Larger packs usually cost less per tablet.
Payment and prices →Do I need a prescription for naproxen in Singapore?
No. SGMeds does not ask for a prescription to order naproxen: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.
Ordering without a prescription →Can I buy naproxen online in Singapore?
Yes, here on SGMeds: choose the product, strength and pack, then check out. We deliver to Singapore and Malaysia. Express shipping is tracked and takes up to 1 week, and Regular shipping takes up to 3 weeks.
How ordering works →

