• Entonox

  Form: gas, compressed medical

  Active substance	Dosage
  Nitrous oxide	50 %
  Oxygen	50 %

  ATC code: N01AX63

  Manufacturer: Linde France

• Kalinox

  Form: gas, compressed medical

  Active substance	Dosage
  Oxygen	50% v/v
  Nitrous oxide	50% v/v

  ATC code: N01AX63

  Manufacturer: AIR LIQUIDE MEDICAL NV Air Liquide Sante International

• Serynox

  Form: gas, compressed medical

  Active substance	Dosage
  Nitrous oxide	50%
  Oxygen	50%

  ATC code: N01AX63

  Manufacturer: Messer France