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About nefopam - Brand name: Acupan

Nefopam is a painkiller. It treats moderate pain, for example after an operation or a serious injury, dental pain, joint pain and muscle pain, or pain from cancer.

You can also take nefopam for other types of long-term pain when weaker painkillers no longer work.

Nefopam is available on prescription only. It comes as tablets.

Key facts

  • Nefopam is usually prescribed when other painkillers such as paracetamol or anti-inflammatories such as ibuprofen or naproxen do not help your pain.
  • Your pain should start to improve 1 to 2 hours after taking the tablets.
  • The most common side effects of nefopam include feeling sick or dizzy. Rarely, it might colour your pee pink, but this is harmless and does not last long.
  • If nefopam makes you feel sleepy or dizzy, do not drive, ride a bike, or use tools or machinery until you feel better.
  • It's possible to become addicted to nefopam if you take it for a long time. It's best to take the lowest dose for the shortest time to control your symptoms.

Page last reviewed: 23 April 2024
Next review due: 23 April 2027