The American journal of emergency medicine
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Ketamine is increasingly being utilized in the management of acute pain in the emergency department (ED), including for older adults, a population at increased risk of adverse effects from medications. We aimed to compare the safety and analgesic effects of high-dose (≥0.3mg/kg) to low-dose (<0.3mg/kg) intravenous (IV) ketamine among older ED patients. ⋯ High-dose and low-dose ketamine reduced pain scores in older adults. High-dose ketamine led to a greater reduction in pain scores, and there was no observed difference in adverse effects or the need for rescue analgesia. One-third needed discontinuation of ketamine in both groups.