Uses

• When an inhalation anæsthetic is required, the administration of nitrous oxide is usually accompanied by simultaneous administration of a volatile agent such as Halothane, Ethrane, etc.
• In the relief of severe pain, usually in emergency situations, by inhalation with 50% oxygen.
• In short term procedures which inevitably involve pain, such as wound and burn dressing, wound debridement and suturing. Administered usually with 50% oxygen. (Entonox)
• Occasionally as an insufflating agent in laparoscopy.
• In cryosurgery as a refrigerant.