Nitrous oxide has a very low abuse potential.
Gillman
M A
MA
D003937:Diagnosis, Differential; D006801:Humans; D009042:Motivation; D009609:Nitrous Oxide; D012307:Risk Factors; D019966:Substance-Related Disorders / Q000145:classification / Q000209:etiology* / Q000523:psychology
D009609:Nitrous Oxide