A mixture of nitrous oxide and oxygen used as an analgesic, especially during labour.

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  • Entonox — Gas and air redirects here, for the 1923 film, see Gas and Air (film) Entonox, referred to colloquially as gas and air , is an analgesic used to ease pain during labour, trauma and minor surgical procedures. Entonox is the trade name for a… …   Wikipedia

  • Nitrous oxide and oxygen — Entonox CD cylinder and giving set Gas and air redirects here, for the 1923 film, see Gas and Air (film) A mix of nitrous oxide 50% and oxygen 50% is a medical anaesthesia gas, commonly known as Entonox (a registered trademark of BOC) or Nitronox …   Wikipedia

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