SS ANEMIA X NO Nitrous oxide (Entonox) can be used in the first 30 minutes in hospital to help control severe pain, provided oxygen saturation is normal. It should not be continued after this time because of the risk of neuropathy and megaloblastic anaemia.

Nitrous oxide (Entonox) can be used in the first 30 minutes in hospital to help control severe pain, provided oxygen saturation is normal. It should not be continued after this time because of the risk of neuropathy and megaloblastic anaemia.