Background: Stimulant use has substantially increased among people with opioid use disorder (OUD) and is associated with worse treatment outcomes. This study's objective was to compare risk of stimulant-related emergency department (ED) and hospital admissions associated with exposure to bupropion, OUD medication (buprenorphine, naltrexone, and methadone), and selective serotonin reuptake inhibitors (SSRIs; active comparator) relative to days without active prescriptions for medication.

Recent reports indicate that stimulant-related deaths are increasing dramatically. People who die from acute stimulant toxicity have high rates of pre-existing cardiovascular disease (CVD), much of which is undiagnosed. Moreover, people who use stimulants with CVD often remain asymptomatic until presenting to an emergency department with an acute event. Prior research shows that symptoms of stimulant toxicity may occur on a regular basis, and that people who die from stimulant toxicity are older...

INTRODUCTION: Injection-related infections (IRI) cause morbidity and mortality in people who inject drugs. Hospital administrative datasets can be used to describe hospitalisation trends, but there are no validated algorithms to identify injecting drug use and IRIs. We aimed to validate International Classification of Diseases (ICD) codes to identify admissions with IRIs and use these codes to describe IRIs within our hospital.

CONCLUSION: Presentations for stimulant-related ED visits differ from opioid-related ED visits: compared to opioids, ED presentations related to cocaine and psychostimulants are less often identified as related to drug toxicity/withdrawal and more often require interventions to address acute cardiopulmonary and psychiatric complications.