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Background/Objectives: Alkyl nitrites are a class of inhalant, commonly known as 'poppers'. Although having medical uses, some other effects include a 'rush', 'high', 'euphoria', or feeling of excitement. This has led to their recreational use, in different scenarios, since the mid-1960s. Adverse effects include tachycardia, migraine headaches, fainting and dizziness, and ventricular fibrillation. Death can occur from the inhalation or ingestion of nitrites. As part of its updated advice to the United Kingdom (UK) Government, the Advisory Council on the Misuse of Drugs considered popper-related mortality, seeking an accurate estimate of deaths. Methods: Data from a range of sources, including specialist mortality databases, were collated and analysed in terms of the key characteristics of decedents and fatal incidents, including the use mode. The chemical names of the nitrites were used in searches. Results: At least forty-two deaths occurred during 1987–2018; two were female. The mean age at death was 44 (range of 20–75) years. Most were White. Most fatalities occurred in England. The specific nitrites mentioned (N = thirty-two) were isobutyl (fourteen); amyl (seven); isopropyl (six); alkyl (three); and butyl (two). The mode of use was only known in 23/42 cases. The product was definitely swallowed in five cases, and very likely in a further one. Four additional cases were identified from the literature and media searches. Conclusions: The lack of a current systematic identification of relevant deaths and shortcomings in historical specialist mortality databases have severely limited what could be established with certainty about these cases. The same criticisms also apply to inhalant mortality data more generally. Nevertheless, the information presented here allows for some conclusions to be drawn and inform UK policy development. [ABSTRACT FROM AUTHOR]

Alkyl nitrites (“poppers”) are a diverse class of volatile chemical compounds with a varied legal and medical history. Though once commonly prescribed to treat angina, popper use is now almost exclusively recreational. Currently, poppers are widely available and sold legally under labels like “solvent cleaner”, despite marketing suggesting they are meant to be consumed. As a result, there is little incentive for producers to implement robust quality controls to protect users. In this study, nine common popper brands were analyzed using hydrogen-1 and carbon-13 nuclear magnetic resonance spectroscopy to assess the presence of impurities. Physical labels on all nine samples indicated the contents were “pure” isobutyl nitrite, despite contradictory online marketing in several cases. Spectral results showed isobutyl nitrite was present in all popper samples. However, there was evidence that various unlabeled compounds were also present in all samples. The identity and concentration of these contaminants were not clear, but the seemingly ubiquitous presence of impurities and lack of consistency in the tested samples are concerning and may represent a threat to users’ health. We hope the results of this study draw attention to the potential dangers of recreational popper use and the need to reassess how these compounds are regulated.

Alkyl nitrites ("poppers") are a diverse class of volatile chemical compounds with a varied legal and medical history. Though once commonly prescribed to treat angina, popper use is now almost exclusively recreational. Currently, poppers are widely available and sold legally under labels like "solvent cleaner", despite marketing suggesting they are meant to be consumed. As a result, there is little incentive for producers to implement robust quality controls to protect users. In this study, nine common popper brands were analyzed using hydrogen-1 and carbon-13 nuclear magnetic resonance spectroscopy to assess the presence of impurities. Physical labels on all nine samples indicated the contents were "pure" isobutyl nitrite, despite contradictory online marketing in several cases. Spectral results showed isobutyl nitrite was present in all popper samples. However, there was evidence that various unlabeled compounds were also present in all samples. The identity and concentration of these contaminants were not clear, but the seemingly ubiquitous presence of impurities and lack of consistency in the tested samples are concerning and may represent a threat to users' health. We hope the results of this study draw attention to the potential dangers of recreational popper use and the need to reassess how these compounds are regulated. [ABSTRACT FROM AUTHOR]

Background: The term 'inhalants' is commonly used to describe a group of drugs that are characterised by the route of administration. There are three main sub-groups of inhalants; volatile solvents, alkyl nitrites, and nitrous oxide. These drugs all have different pharmacological properties, use patterns, and potential harms; yet they are sometimes grouped together in survey instruments. This critical review aimed to present a comparative analysis of how these inhalant drugs are defined, and use measured, across a range of population-level drug use surveys., Methods: Population-level drug use surveys of youth (n=5) and general population (n=6), which measured use of at least once type of inhalant drug, were analysed as case studies. The types of inhalants surveyed were extracted, as well as definitions of these drugs, from code books or survey methods., Results: Differing definitions were used between surveys, and included differences between countries, and between surveys intended to measure youth and general population drug use. Of the six general population surveys; five reported nitrous oxide use, five reported volatile solvent use, and four reported alkyl nitrite use. Of the five youth-specific surveys; three reported volatile solvent use, whereas only one reported on alkyl nitrite use, and one reported nitrous oxide use., Conclusions: There is no consistent approach used to define or measure the use of inhalant drugs, which has implications for global comparisons and understanding drug use in different populations. We conclude that the term 'inhalants' should be discontinued, due to the limited value in continuing to group very different types of drugs solely on the basis of their route of administration. Improving the epidemiology of volatile solvents, alkyl nitrites, and nitrous oxide as distinct drug types will be of benefit to harm reduction, treatment, and prevention efforts, and ensure these are targeted appropriately to population groups and context of use., Competing Interests: Declarations of Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023. Published by Elsevier B.V.)

Background: Poppers (alkyl nitrites) are vasodilators used by many gay, bisexual, and other men who have sex with men (GBMSM) to relieve pain, enhance pleasure, and facilitate penetration during sex. In 2013, the Canadian government cracked down on the sale of poppers products, however prevalence of poppers use among GBMSM in Canada remains high. Poppers have been studied by medical researchers since the 1980s, yet qualitative and community-based research to inform federal policy, remains somewhat less common.Methods: We conducted a critical interpretive synthesis (CIS) to better understand poppers health literature using the medical model of health as a point of reference. Analysis was performed using inductive and deductive methods including reflexive note-taking, mind-mapping, and close coding. 153 publications were identified to inform this review of which 5 were chosen for coding based on a purposive sampling framework.Results: Our findings are unified within a theoretical construct we term responsibility. Responsibility is a construct we use to describe the bias we identified in health sciences literature regarding poppers use that tends to exaggerate the necessity for poppers cessation, and devalue both the benefits of poppers use and the perspectives and experiences of people who use poppers. The emphasis on individual behavior change within the literature appears to be motivated less by objective measures or assessments of health risks and outcomes, and more by harmful stereotypes that position gay men and people who use drugs as inherently irresponsible.Conclusion: We conclude by discussing how these findings have important implications for the review of current policy on poppers sales in Canada which remains influenced by a literature base prejudiced by factors such as homophobia, heteronormativity, and drug stigma, and recommend areas for future work. [ABSTRACT FROM AUTHOR]