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Diclofenac

Diclofenac is a non-steroidal anti-inflammatory drug that reduces pain and inflammation. Oral and topical forms differ in systemic exposure but can still contribute to the same NSAID risks. Listed uses include acute musculoskeletal pain, osteoarthritis, rheumatoid arthritis and ankylosing spondylitis.

Medicines containing Diclofenac

Voltaren

Rheumatoid Arthritis, Osteoarthritis

50 · 100mg

Diclofenac 50mg and 100mg tablets, used for rheumatoid arthritis, osteoarthritis and acute musculoskeletal pain. A phenylacetic acid NSAID.

From$0.36/ tabletView

Voveran

Rheumatoid Arthritis, Osteoarthritis

50mg

Voveran is diclofenac 50mg in a gastro-resistant tablet, so it passes the stomach before dissolving. Listed for arthritis and ankylosing spondylitis.

From$0.39/ tabletView

Voveran SR

Rheumatoid Arthritis, Osteoarthritis

100mg

Voveran SR is diclofenac 100mg in a prolonged-release tablet for rheumatoid arthritis and osteoarthritis, releasing the NSAID gradually.

From$0.94/ tabletView

Voltaren SR

Rheumatoid Arthritis, Osteoarthritis

100mg

Voltaren SR is diclofenac 100mg in a modified-release tablet for rheumatoid arthritis, osteoarthritis and ankylosing spondylitis.

From$0.64/ tabletView

Voltarol

Osteoarthritis, Rheumatoid Arthritis

100mg

Diclofenac at the single 100mg tablet strength, used for osteoarthritis, rheumatoid arthritis and ankylosing spondylitis. A cyclooxygenase inhibitor.

From$0.51/ tabletView

Key points

  • Diclofenac can help selected inflammatory pain but should not be combined with another NSAID without clinical advice.
  • Ulcer, cardiovascular, kidney and pregnancy risks require review even when symptoms seem routine.
  • Chest pain, vomiting blood, black stools or very low urine output needs urgent care.

Select a listed product and pack to order online. Supply depends on stock and destination rules; ask your doctor or pharmacist whether it suits you.

Important form differences

Oral and injectable diclofenac expose the whole body. Gels act mainly at the application site but are not risk-free, especially over large areas or alongside another NSAID.

Important safety checks

Ulcer or bleeding history, heart or vascular disease, high blood pressure, kidney disease, dehydration, anticoagulants, NSAID-sensitive asthma and pregnancy require review. Use the lowest necessary exposure for the shortest clinically appropriate period.

When to seek urgent care

Seek urgent help for chest pain, sudden breathlessness, stroke signs, vomiting blood, black or bloody stools, severe abdominal pain, facial swelling, breathing difficulty or very low urine output.

Further reading

FAQ

What is diclofenac used for?

Diclofenac is a non-steroidal anti-inflammatory drug used to reduce pain and inflammation. It is also used for acute musculoskeletal pain, osteoarthritis, rheumatoid arthritis and inflammatory arthritis of the spine (ankylosing spondylitis).

How does diclofenac work?

Diclofenac blocks the cyclooxygenase (COX-1 and COX-2) enzymes, which make prostaglandins. These are the chemicals behind pain, inflammation and fever.

What diclofenac products does SGMeds list?

Products containing diclofenac on SGMeds include Voltaren, Voveran and Voveran SR, with more on this page. Compare their forms, strengths and pack sizes.

How long does diclofenac take to work?

Diclofenac starts to work in about 30 to 60 minutes and its effect lasts around 4 to 8 hours.

What are the side effects of diclofenac?

Common effects include indigestion (dyspepsia), nausea and headache. Diarrhoea, fluid retention and raised liver enzymes can also occur, and serious effects include gastrointestinal bleeding, heart attack and a severe allergic reaction (anaphylaxis), all of which need immediate medical attention.

Can diclofenac be taken with other medicines?

Diclofenac can interact with aspirin, warfarin and lithium. Do not combine it with another NSAID without advice from a doctor or pharmacist.

What are other names for diclofenac?

In other countries, diclofenac is also sold as Flamrase and Motifene. Brand names vary between countries, so compare products by their active ingredient.

What does diclofenac cost in Singapore dollars?

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 →

Can I buy diclofenac over the counter in Singapore?

Yes, online. SGMeds does not ask for a prescription to order diclofenac: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.

Ordering without a prescription →

Do you deliver diclofenac to Singapore?

Yes. 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 →

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