Use of "Poppers" among Adults in the United States, 2015-2017

Use of poppers (nitrite inhalants) among young men who have sex with men with HIV: A clinic-based qualitative study

Nitrite inhalants (poppers) are associated with HIV transmission and commonly used among young men who have sex with men (YMSM), a group at increased risk for HIV. Significant research gaps exist in understanding the context in which YMSM use poppers. Qualitative interviews were conducted with 15 YMSM (22-31 years) with HIV to better understand the context in which poppers are used and their impacts on HIV care outcomes, such as care retention and antiretroviral adherence. The Social Ecological Model was applied to understand intrapersonal, interpersonal, community, and system level influences on popper use. Factors influencing popper use included: ubiquity of popper use in sexual settings, introduction to poppers by casual sexual partners, patient-HIV provider communication surrounding poppers, neighborhood, substance use and HIV care systems, and the legal status of poppers. Implications for clinical care, public health, policy, and future research are discussed.

Poppers Dermatitis®: A Systematic Review on a Unique Form of Contact Dermatitis® in the MSM Community

There are certain demographic characteristics that may serve as risk factors for exposure to a contact allergen. Volatile alkyl nitrites, colloquially known as "poppers," are commonly inhaled by men who have sex with men (MSM) for their psychoactive and muscle-relaxing effects. They have been reported to cause either allergic contact Dermatitis® (ACD) or irritant contact Dermatitis® (ICD), termed "poppers Dermatitis®." We searched PubMed, Embase, and Web of Science to understand the patient population, clinical presentation, diagnosis, and clinical course of poppers Dermatitis®. Our search returned 13 articles detailing 18 patients total. Most patient cases were male (n = 13/15; 87%), of whom 5 were MSM. The reports on the remaining 8 men did not disclose their sexual behaviors. The chemicals deemed responsible for adverse cutaneous side effects included amyl nitrite (6/18; 33%), butyl nitrite (3/18; 167%), isobutyl nitrite (2/18; 11%), and an unspecified alkyl nitrite (7/18, 39%). The most common diagnosis was ICD (10/18; 56%). Only 3 patients underwent alkyl nitrite patch testing, with 2 testing positive for ACD. The most commonly involved anatomic sites were perinasal (13/18; 72%) and perioral regions (10/18; 56%). Rash morphology has been described as yellow crusting, impetigo-like, eczematous, vesicular, edematous, and erythematous. Ulceration can occur with direct skin contact to concentrated nitrite solution. Poppers Dermatitis® was often self-limited with complete resolution. Dermatologists should consider poppers Dermatitis® in those presenting with a characteristic midfacial rash, especially in MSM.

Substance Use Over Time Among Sexual and Gender Minority People: Differences at the Intersection of Sex and Gender

Purpose: Sexual and gender minority (SGM) people are at greater risk for substance use than heterosexual and cisgender people, but most prior work is limited by cross-sectional analyses or the examination of single substance use. This study examined substance use over time among SGM people to identify patterns of polysubstance use at the intersection of sex and gender. Methods: Data were collected annually over 4 years from SGM respondents (n = 11,822) in The Population Research in Identity and Disparities for Equality (PRIDE) Study. Differences in substance use patterns (any prior 30-day use of 15 substances) by gender subgroup were examined with latent class analysis, and multinomial regression models tested relationships between gender subgroup and substance use. Results: Eight classes of substance use were observed. The three most common patterns were low substance use (49%), heavy episodic alcohol use (≥5 alcoholic drinks on one occasion) with some cannabis and tobacco use (14%), and cannabis use with some tobacco and declining heavy episodic alcohol use (13%). Differences observed included lower odds of patterns defined by heavy episodic alcohol use with some cannabis and tobacco use in all gender subgroups relative to cisgender men and persons with low substance use (odds ratios [ORs] 0.26-0.60). Gender expansive people assigned female at birth, gender expansive people assigned male at birth, and transgender men had greater odds of reporting cannabis use with small percentages of heavy episodic alcohol and tobacco use (ORs: 1.41-1.60). Conclusion: This study suggests that there are unique patterns of polysubstance use over time among gender subgroups of SGM people.

Pediatric popper intoxication: Case report of intoxication in a 3-month-old infant

We present the case of a 3-month-old boy who accidentally ingested poppers. The patient presented with refractory hypoxemia and compensated circulatory failure associated with severe methemoglobinemia. He made a full recovery after treatment with the specific antidote methylene blue. This is the first report of popper poisoning in a child - a rare case of poisoning in pediatrics.

Nitrites: An Old Poison or a Current Hazard? Epidemiology of Intoxications Covering the Last 100 Years and Evaluation of Analytical Methods

In recent times, there has been a concerning and noteworthy rise in the global use of sodium nitrite for suicidal purposes. This is facilitated either through the employment of specialized "suicide kits" or by acquiring sodium nitrite through alternative means. Additionally, another occurrence contributing to nitrite poisoning is the recreational utilization of nitrites in the form of volatile aliphatic esters of nitrous acid, commonly referred to as "poppers". Based on current available papers and reports on the subject of nitrates, nitrites, and poppers intoxications, an epidemiological analysis and evaluation of analytical methods were performed. A total of 128 papers, documenting a collective count of 492 intoxication cases, were identified. Additionally, in order to complete the epidemiological profile of nitrite poisoning, the authors briefly examined six cases of nitrite intoxication that were under investigation in our laboratory. Furthermore, a review of nitrite poisoning cases over the past 100 years shows that the old poison is still in use and poses a substantial risk to society.

Characterizing changes in drug use behaviour following supply shortages of 5-MeO-DIPT, alkyl nitrites and new psychoactive substances among men living with HIV in Japan

BACKGROUND

Since 2005, Japan has incrementally banned a range of new psychoactive substances (NPS), including 5-MeO-DIPT (5MO; foxy) and alkyl nitrites (AN; rush, poppers) that have commonly been used among men who have sex with men (MSM). After the largest ban in 2014, these drugs were reported to have disappeared from the domestic market. Given that 5MO/AN/NPS use has been prevalent among men living with HIV in Japan, a population largely comprised of MSM, we sought to characterize changes in their drug use behavior following the supply shortages.

METHODS

Using data from two waves of a nationwide survey of people living with HIV in Japan in 2013 and 2019-20 (n = 1042), we employed multivariable modified Poisson regression to identify correlates of self-reported reactions to the 5MO/AN/NPS shortages and changes in drug use behavior in 2019-20 vs. 2013.

RESULTS

Among 391 men (96.7% MSM) surveyed in 2019-20, following the supply shortages, 234 (59.8%) stopped using 5MO/AN/NPS, 52 (13.3%) retained access to the supply, and 117 (29.9%) used substitute drugs: most commonly, methamphetamine (60.7%). Individuals who used substitutes were more likely to report unprotected sex (adjusted relative risk [ARR]=1.67; 95% confidence interval [CI]: 1.13-2.47) as well as low (ARR=2.35; 95% CI: 1.46-3.79) and lower middle (vs. upper middle to high) socioeconomic status (ARR=1.55; 95% CI: 1.00-2.41). The prevalence of past-year methamphetamine use (ARR=1.93; 95% CI: 1.11-3.35) and self-reported uncontrollable drug use (ARR=1.62; 95% CI: 1.07-2.53) were significantly higher in 2019-20 compared to 2013.

CONCLUSION

Following the supply shortages, approximately one-fifth of our participants used methamphetamine as a substitute for 5MO/AN/NPS. Methamphetamine use and perceived uncontrollable drug use also appeared to have increased at the population level after the supply shortages. These findings suggest a potentially harmful substance displacement effect of the aggressive ban. Harm reduction interventions are needed in this population.

Methaemoglobinaemia due to alkyl nitrites in a patient with suspected traumatic injuries

A man in his 60s with no relevant previous medical history presented to an urban, major trauma centre by ambulance after being found with a head injury in a nightclub. The paramedics reported he was hypoxic, hypotensive and tachycardic with altered mental status. At the emergency department, he had oxygen saturations of 85% despite high-flow oxygen and was hypotensive at 88/43mmHg. We were concerned the patient was haemorrhaging given the lack of response to oxygen therapy and their hypotension. However, an arterial blood gas (ABG) established a diagnosis of methemoglobinaemia. Methylthioninium chloride was promptly administered, and the patient's condition improved. He later reported using recreational drugs, including alkyl nitrites ('poppers'). He was monitored until his fraction of methaemoglobin returned to normal baseline levels with serial ABGs. He was discharged 24 hours later. It was suspected that his use of alkyl nitrites was the most likely cause of methaemoglobinaemia.

Drug use typology, demographic covariates, and associations with condomless anal sex: A latent class analysis among a U.S. national cohort of men who have sex with men

BACKGROUND

Prior research has shown that men who have sex with men (MSM) who use drugs are at increased risk of sexually transmitted infections (STI) and Human Immunodeficiency Virus (HIV). Often, MSM who use drugs use multiple substances at once and research has indicated that certain substances are used in combination more frequently. As a vulnerable population, it is important to understand the various ways in which this population uses drugs in order to structure prevention, harm reduction, and treatment programs to their needs.

METHODS

Data for this analysis were taken from a cohort of geographically diverse U.S. national sample of cisgender men who have sex with men (n = 6111). After assessing prevalence of drug use in the sample, we used iterative latent class analysis to determine substance use classes for 10 substances. After a model was selected, class assignments were examined for association with mean number of insertive and receptive condomless anal sex (CAS) partners in the past three months.

RESULTS

The final model indicated six latent classes: class 1 = "cannabis use" (n = 1,996), class 2 = "diverse use" (n = 299), class 3 = "cocaine and inhalant use" (n = 421), class 4 = "methamphetamine, GHB, and inhalant use" (n = 345), class 5 = "no use" (n = 2431), class 6 = "sedative use" (n = 619). Age, race, annual income, residence in EHE jurisdictions, past history of houselessness, and past history of incarceration was significantly associated with membership in some classes. In outcome modeling, participants best assigned to Class 4 had the highest mean number of insertive (Mean = 9.70, 95% CI: 5.92 - 13.47) and receptive (Mean = 8.71, 95% CI: 6.75 - 10.66) condomless anal sex (CAS) partners in the prior three months.

CONCLUSION

The six heterogenous classes may indicate discrete typologies of use behavior corresponding to different settings or activities, which may themselves differ by regional HIV incidence trends and participant demographics. Programs seeking to address substance use among MSM may be well served to tailor toward these divergent clusters of substance use.

Examining Inhalant Use Among Sexual Minority Adults in a National Sample: Drug-Specific Risks or Generalized Risk?

Purpose: The study objective was to compare use of 12 specific inhalants among lesbian, gay, and bisexual (LGB) adults relative to heterosexual adults among a national sample. Methods: Data on 210,392 adults, including 15,007 LGB adults, were from the 2015 to 2019 National Survey on Drug Use and Health. For each inhalant type, logistic regression was used to characterize differences by sexual identity and gender. Unadjusted and demographic adjusted odds ratios are reported. Results: All LGB groups exhibited elevated use of multiple inhalant types (ranging from 5 for gay males to 12 for bisexual females). The largest disparities were for poppers among gay and bisexual males. Gay and bisexual males initiated use at older ages. Conclusion: Observed disparities among LGB adults included inhalants used in a sexual or club context (e.g., poppers) as well as types with particularly elevated fatality risk (e.g., butane, propane, aerosol sprays, and nitrous oxide).

Self-Reported Combination HIV Prevention Strategies Enacted by a Prospective Cohort of Midlife and Older Men Who Have Sex with Men in the United States: A Latent Class Analysis

Insights into combination HIV prevention (CHP) strategies to reduce HIV incidence among midlife and older adult men who have sex with men (MSM) are limited. The current study is a secondary data analysis evaluating CHP in a sample of sexually active midlife and older adult MSM (N = 566) from the Multicenter AIDS Cohort Study Healthy Aging Substudy. Stratified by HIV serostatus, we used latent class analyses to identify CHP classes based on self-reported sociobehavioral and biobehavioral prevention strategies that participants and their male partners used in the prior 6 months. We identified three CHP classes among men living without HIV (MLWOH), including the following: high CHP overall (43.0%), high anal sex abstention (15.0%), and low prevention overall (42.0%). Among men living with HIV (MLWH), we identified four CHP classes, including the following: high CHP overall (20.9%), high CHP/low condom use (27.1%), high condom reliance (22.3%), and low prevention overall (29.7%). There were small differences by sociodemographic characteristics and sexual behavior practices between the classes; however, poppers use was often linked to being in high CHP groups. Our findings support that CHP is not one-size-fits-all for midlife and older adult MSM. There remains a need to scale up clinical providers' sexual health communication practices to assist midlife and older MSM incorporate prevention strategies, particularly biobehavioral prevention strategies that align with their patients' lived experiences.

Cocaine and Volatile Nitrite-Induced Methemoglobinemia; a Case Report and Treatment Approach Review

Cyanosis is typically a sign of a potentially life-threatening condition in the emergency department and requires immediate workup and treatment. This case report highlights the diagnostic reasoning and clinical approach to cocaine- and volatile nitrite-induced methemoglobinemia (MHG). MHG is a rare, life-threatening cause of cyanosis. The diagnosis must be suspected in the emergency department in the presence of hypoxia and cyanosis disproportionate to cardiopulmonary repercussions and refractory to oxygen supplementation. Acquired causes are more prevalent than genetics, and recreational drugs should be highly suspected. Despite the rarity of this situation, cyanosis precipitants and the specificities of each hemoglobinopathy are reviewed in this article.

Methemoglobinemia due to use of poppers: a case report

Background

Methemoglobinemia is an excess of oxidized hemoglobin in the blood, affecting oxygen transportation. It is characterized by central cyanosis that does not respond to oxygen therapy. Prognosis is excellent when treated adequately and rapidly. We present a case report of a 38-year-old Caucasian man suffering from methemoglobinemia due to the use of poppers.

Case presentation

A 38-year-old Caucasian man known as a smoker and addicted to cocaine was admitted to the emergency department with dyspnea, agitation, and central cyanosis that started approximately 3 hours before admission. The persistent hypoxia despite high-flow oxygen therapy and a history of poppers use helped to reveal a condition known as methemoglobinemia.

Conclusions

Our case highlighted a typical clinical presentation of methemoglobinemia. This possible life-threatening condition can occur after ingestion or inhalation of poppers, commonly sold in sex shops for recreational purposes. This can be easily confirmed by the methemoglobin level of the blood gases, provided the emergency physician considers this diagnosis. Rapid treatment with intravenous methylene blue is effective and leads to a favorable prognosis.

Associations between discrimination and substance use among college students in the United States from 2015 to 2019

Discrimination has been associated with adverse health behaviors and outcomes, including substance use. Higher rates of substance use are reported among some marginalized groups, such as lesbian, gay, and bisexual populations, and have been partially attributed to discrimination. This study uses 2015-2019 National College Health Assessment data to determine whether college students reporting discrimination due to sexual orientation, race/ethnicity, gender, or age report greater substance use than their peers who do not report such experiences. Additionally, we assess exploratory questions regarding whether substance choices differ among students who reported facing discrimination. Over time, about 8.0% of students reported experiencing discrimination in the past year. After applying inverse probability treatment weights (IPTWs), exposure to discrimination was associated with an excess of 44 cases of marijuana use per 1000 students, an excess of 39 cases of alcohol use per 1000 students, and an excess of 11 cases of prescription painkiller use per 1000 students. Multivariable logistic regression models with IPTW demonstrated that students who experienced discrimination were more than twice as likely to use inhalants and methamphetamine. These students were also significantly more likely to use other drugs, including opiates, non-prescribed painkillers, marijuana, alcohol, hallucinogens, cocaine, and cigarettes; however, the differences with peers were smaller in magnitude. Students who experienced discrimination did not differ from peers who reported non-prescribed antidepressants use and were significantly less likely to use e-cigarettes and smokeless tobacco. Associations between discrimination and substance use vary by race, gender, sexual orientation, and age. These findings indicate that discrimination has significant associations with many kinds of substance use; however, the magnitude varies by substance type. More institutional efforts to address sources of discrimination affecting college students are needed.

Racial Variations in Psychosocial Vulnerabilities Linked to Differential Poppers Use and Associated HIV-Related Outcomes among Young Men Who Have Sex with Men: A Study in Two U.S. Metropolitan Areas

Background: Poppers use has become increasingly prevalent and is associated with elevated HIV risk among young men who have sex with men (YMSM) in urban settings. However, knowledge regarding racial variations of poppers use and their psychosocial determinants to inform culturally-targeted interventions remain limited. Methods: We conducted a cross-sectional study among YMSM recruited from two US metropolitan areas (Nashville, TN and Buffalo, NY) to investigate the differences of socio-environmental and mental health factors associated with poppers use and important HIV-related outcomes [e.g., HIV testing, pre-exposure prophylaxis (PrEP, substance use, and risky sexual behaviors] among White and Black YMSM (i.e., YWMSM and YBMSM). Results: Among 347 YMSM aged 18-35 years, 32.3% reported poppers use. Notably, poppers-using YWMSM were more likely (p < 0.05) to report mental health burdens (e.g., depression, anxiety, loneliness), while poppers-using YBMSM were more likely (p < 0.05) to experience adverse social-environmental events (e.g., unstable housing, food insecurity, no health insurance, perceived HIV stigma, internalized homonegativity). Poppers-using YMSM showed a higher prevalence of sexual risk behaviors (e.g., event-level alcohol/drug use, condomless insertive/receptive anal sex, group sex) compared to their non-user counterparts, with YWMSM showing the highest likelihood to engage in these risk behaviors. Compared to poppers-using YBMSM, poppers-using YWMSM were associated with a higher likelihood of ever testing for HIV, ever using PrEP and willingness to use PrEP in the next 12 months. Conclusion: Given the distinctive patterns of psychosocial determinants of poppers use between YWMSM and YBMSM, culturally-tailored poppers reduction programs should be designed to tackle the associated HIV risks among YMSM with effectivenes.

Sexual Orientation and Age of First Drug Use Among Adults in the United States

BACKGROUND

Early onset of drug use could lead to long-term impairments, and research suggests that substance use and substance use disorders are more common among lesbian, gay, and bisexual (LGB) individuals. We sought to determine whether adults of different sexual identities were at differential risk for an earlier onset of drug use.

METHODS

We examined data from adults participating in the five waves (2015-2019) of the National Survey on Drug Use and Health, a nationally representative sample of noninstitutionalized adults in the United States. We determined whether current sexual identity was associated with retrospectively reported age of the first use of marijuana, cocaine, inhalants, ecstasy, and methamphetamine.

RESULTS

Compared to heterosexual individuals of the same sex, gay men had a later age of onset of use of all five drugs examined (marijuana, cocaine, inhalants, ecstasy, and methamphetamine) and bisexual men had a later onset of marijuana and inhalant use. Bisexual women had earlier age of onset for marijuana, cocaine, and ecstasy use. When examining early initiation (prior to age 15), both lesbian and bisexual women had greater odds of early initiation for marijuana, cocaine, and ecstasy; bisexual men had greater odds of early initiation for cocaine. Gay men had lower odds of initiation prior to age 15 for marijuana, inhalants, and methamphetamine.

CONCLUSIONS

Current sexual identity is a correlate of earlier onset drug use. Longitudinal research is needed to further examine such associations as sexual identity can shift over time. Results are discussed in relation to prevention efforts aiming younger LGB persons.

Disparities in Use/Misuse of Specific Illicit and Prescription Drugs among Sexual Minority Adults in a National Sample

Background: Compared to heterosexual adults, lesbian, gay, and bisexual (LGB) adults have higher rates of any illicit drug use and any prescription drug misuse, yet disparities regarding specific drugs remain poorly characterized. Methods: We examined disparities by sexual identity and sex for 8 illicit and prescription drugs using 2015-2019 National Survey on Drug Use and Health data. Outcomes included past-year use/misuse of cocaine/crack, hallucinogens, inhalants, methamphetamine, heroin, prescription opioids, prescription stimulants, prescription tranquilizers/sedatives, and level of polydrug use/misuse (2 substances; 3+ substances). For each outcome, odds ratios relative to heterosexual adults of same sex were estimated using logistic regression controlling for demographics; significant estimates were interpreted as a disparity. Results: Among gay men, significant disparities were present for all drugs except prescription stimulants and heroin; inhalant use was particularly elevated. Bisexual women exhibited significant disparities for every drug examined, as did bisexual men (except heroin). Among lesbian/gay women, disparities were only present for prescription opioids and stimulants. Relative to heterosexual peers, use of 3+ substances was 3 times higher among gay men and bisexual women and 2 times higher among bisexual men. Conclusions: Consistent with minority stress theory, prevalences of illicit and prescription drug use/misuse were 2-3 times higher among LGB adults than heterosexual adults. Illicit drug use should not be perceived as only impacting gay/bisexual men - bisexual women had similar - or higher - prevalences of hallucinogen, cocaine, methamphetamine, and heroin use. Yet, in contrast to bisexual women, lesbian/gay women did not exhibit disparities for any illicit drugs.

Differences in use of inhalants among sexual minorities in the USA in 2015-2018

OBJECTIVES

Inhalants are substances with underestimated abuse potential associated with cardiac problems, dizziness, seizures, and decreased level of consciousness. Inhalants are commonly used by the LGB population, who are vulnerable to their harms. US epidemiologic inhalants data are scarce. The aims of this study are to: i) investigate associations between inhalant use and sexual identity groups; ii) examine associations with use of other drugs among lesbian/gays who use inhalants.

METHODS

Data came from the 2015-2018 NSDUH (n = 168,560). Participants ages 18 or older were asked if they had used any inhalants in their lifetime and past-year. We investigated the associations between inhalant use with sexual identity categories heterosexual, lesbian/gay, and bisexual using logistic regression models with complex survey design.

RESULTS

Total prevalences of lifetime and past-year use of inhalants were 9.4% and 0.5%, respectively. Lesbian/gay population (L/G) and bisexuals (B) reported higher odds of lifetime (L/G: aOR = 3.71, 95%CI = [3.19,4.30], B: aOR = 1.82, 95%CI = [1.64,2.03) and past-year (L/G: aOR = 11.57, 95%CI = [8.95,14.96], B: aOR = 2.81, 95%CI = [2.02,3.92]) inhalant use compared to heterosexuals. Among L/G, men had higher odds of lifetime (aOR = 4.11, 95%CI = [3.06,5.52]) and past-year (aOR = 15.67, 95%CI = [7.27,33.76]) inhalant use versus women. Use of marijuana (aOR = 2.76, 95%CI = [1.48,5.16]), other illegal drugs (aOR = 2.70, 95%CI = [1.60,4.56]), and non-medical use of psychotherapeutics (aOR = 2.67, 95%CI = 1.77,4.05) were associated with past-year use of inhalants among L/G.

CONCLUSION

LGB population is at elevated risk of inhalant use and of concurrent use with other drugs. Gay men had significantly higher odds of inhalant use compared to lesbians and bisexuals. Informative and in-site harm reduction measures are warranted to prevent harms from inhalant use.