Adolescent Acetaminophen and Ibuprofen Self-Poisoning, 2017–2022

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BACKGROUND: Acetaminophen and ibuprofen are the most common agents involved in adolescent self-poisoning. With increasing suicidality observed during the COVID-19 pandemic, we sought to compare overdose trends, severity, and outcomes for both agents. METHODS: We performed a retrospective analysis of the National Poison Data System for acetaminophen and ibuprofen single-substance exposures in teenagers 13-19 years of age from 2017-2022. Acetaminophen and ibuprofen overdoses (per 100,000 persons) were plotted by year. Medical outcomes, clinical effects, and therapies were compared to determine if there were differences in overdose severity between the 2 agents. RESULTS: From 2017 to 2022, US poison centers recorded 50,902 single-substance acetaminophen exposures and 41,674 single-substance ibuprofen exposures in teenagers. Cases peaked in 2021 with 40.0 versus 29.1 cases (per 100,000 persons) for acetaminophen and ibuprofen, respectively. Acetaminophen self-poisoning was significantly more likely to result in death (odds ratio, 13.92; 95% confidence interval, 2.18-581.75; P < 0.001) or inpatient admission (odds ratio, 7.38; 95% confidence interval, 7.10-7.66; P < 0.001) compared with ibuprofen. Abdominal pain and vomiting were the most common clinical effects for both agents, and unsurprisingly, acetaminophen was more likely to cause transaminitis and liver dysfunction, whereas ibuprofen was more likely to cause central nervous system depression and metabolic acidosis. For the acetaminophen group, 19 teenagers underwent organ transplantation. CONCLUSIONS: Given the increased hospitalization and treatment resources needed for acetaminophen overdoses compared with ibuprofen, it is time to implement acetaminophen packaging policy change to protect US adolescents.

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