Recreational use of nitrous oxide

Nitrous oxide (street name nangs, hippy crack, whippets , whippits or cannies) is a gas which can induce euphoria, hallucinogenic states and relaxation when inhaled. Nitrous oxide is a neurotoxin and excessive use can cause long-term neurological damage.

First recorded in the 18th century at upper-class "laughing gas parties", the experience was largely limited to medical students until the late 20th century when laws limiting access to the gas were loosened to supply dentists and hospitals. By the 2010s, nitrous oxide had become a moderately popular recreational drug in some countries.

Increasing recreational use has become a public health concern internationally due to the potential for long-term neurological damage following excessive use. Recreational users are often unaware of the risks associated with excessive use. Possession of nitrous oxide is legal in many countries, although some have criminalised supplying it for recreational purposes.