Laughing gas inhalation in Chinese youth: a public health issue

摘要

Nitrous oxide is a common medicalinhalational anaesthetic. However,direct high-concentration inhalationof nitrous oxide, via a balloon or plasticbag, is increasing among recreationalusers, and can lead to psychologicaladdiction and cerebral anoxia.1 Abuseor long-term use can also causevitamin-B12 deficiency, and severeneural and psychiatric symptoms.