Errors in the administration of diabetes medications can result in emergency department visits, hospitalizations, and patient harm. Using National Poison Data System data, researchers found that errors involving diabetes medications administered outside of healthcare facilities increased by nearly 280% from 2000 to 2011 and by 15% from 2011 to 2021. About 10% of those errors involved a serious outcome (e.g., hospital admission or death). Insulin-related errors were most common, but metformin accounted for 59% of deaths.