Single-Substance Exposures Causing Seizures Increased in U.S. Children, 2009 to 2023
By Lori Solomon HealthDay Reporter
FRIDAY, Oct. 18, 2024 -- Seizures associated with pediatric single-substance exposures are steadily increasing, according to a study presented at the European Emergency Medicine Congress, held from Oct. 12 to 16 in Copenhagen, Denmark.
Rita Farah, Ph.D., from the University of Virginia in Charlottesville, and colleagues assessed characteristics of 30,985 pediatric single-substance exposures that resulted in seizures in patients younger than 20 years using data reported to the U.S. National Poison Data System (2009 through 2023).
The researchers found that the number of exposures with seizures increased from 1,418 cases in 2009 to 2,749 cases in 2023, with an average of a 5 percent yearly increase. The number of exposures with seizure doubled during the study period in patients aged 6 to 12 years and 13 to 19 years, with a 6 percent yearly increase.
The increase in exposures with seizures was in part driven by diphenhydramine-related exposures, which increased from 85 cases in 2009 to 404 cases in 2023. Bupropion-related exposures increased from 162 in 2013 to 431 in 2023. The two most frequently reported substance exposures with seizure between 2009 and 2012 were tramadol and diphenhydramine, but from 2013 to 2023, bupropion and diphenhydramine were the first and second most frequently reported substances. From 2012 to 2015, synthetic cannabinoids ranked third. For status epilepticus, bupropion, diphenhydramine, synthetic cannabinoids, and amphetamines were the most frequently reported substances.
“Preventative measures need to be instituted to prevent a further rise,” the authors wrote.
Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.

© 2025 HealthDay. All rights reserved.
Posted October 2024
Read this next
Specific Antiseizure Medications Associated With Major Malformations in Infants
FRIDAY, July 18, 2025 -- Maternal use of valproate, phenobarbital, and topiramate early in pregnancy is associated with an increased risk for major malformations in infants...
Socioeconomic Disparities Contribute to Frequent ED Visits for Seizure
MONDAY, July 14, 2025 -- Racial/ethnic and socioeconomic disparities contribute to frequent emergency department visits for seizures, according to a study published online July 5...
Early-Onset Neonatal Sepsis Linked to Childhood Epilepsy
FRIDAY, July 11, 2025 -- Early-onset neonatal sepsis and meningitis are associated with an increased risk for childhood epilepsy, according to a study published online July 7 in...
More news resources
- FDA Medwatch Drug Alerts
- Daily MedNews
- News for Health Professionals
- New Drug Approvals
- New Drug Applications
- Drug Shortages
- Clinical Trial Results
- Generic Drug Approvals
Subscribe to our newsletter
Whatever your topic of interest, subscribe to our newsletters to get the best of Drugs.com in your inbox.