Canadian family physician Médecin de famille canadien
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To systematically review the literature for studies comparing the efficacy of opioid analgesics for older adults (≥ 65 years) presenting to the emergency department (ED) with acute pain. ⋯ The lack of published research in this area demonstrates a considerable gap in knowledge of the comparative efficacy of opioid analgesics in the growing older adult patient population. Physicians are often uncertain in their choice of analgesia, potentially contributing to the undertreatment of pain. It is clear that well designed RCTs are urgently needed.