TY - JOUR PY - 2021// TI - Alarming increase in poisonings from recreational nitrous oxide use after a change in EU-legislation, inquiries to the Dutch Poisons Information Center JO - International journal on drug policy A1 - van Riel, A. J. H. P. A1 - Hunault, C. C. A1 - van den Hengel-Koot, I. S. A1 - Nugteren-van Lonkhuyzen, J. J. A1 - de Lange, D. W. A1 - Hondebrink, L. SP - 103519 EP - 103519 VL - 100 IS - N2 - BACKGROUND: After the change in EU-legislation in 2014, recreational use of nitrous oxide (N(2)O) increased in the Netherlands from 2015 onwards. We studied the effect on N(2)O poisonings during an 11 year period.

METHODS: A retrospective observational study was performed on the incidence rate of N(2)O poisonings, relative to all recreational drug poisonings reported to the Dutch Poisons Information Center (DPIC) from 2010-2020. Secondary outcomes were the frequency of heavy use, frequent use, co-exposures, and toxicity in 2019 and 2020.

RESULTS: 433 N(2)O poisonings were included. The incidence rate increased exponentially from 0.12% in 2010 to 11% in 2020, with an average monthly rate of 3.8%. In 2019 and 2020, 79% of the patients indicated heavy use, frequent use or both, and 42% used from large cylinders. Chronic toxicity (signs of peripheral neuropathy) was reported in 38% of the patients.

CONCLUSION: The rate of N(2)O poisonings increased alarmingly in the Netherlands. An increasing proportion of patients reported problematic heavy or frequent use, accompanied by chronic toxicity.

Language: en

LA - en SN - 0955-3959 UR - http://dx.doi.org/10.1016/j.drugpo.2021.103519 ID - ref1 ER -