Highlights & Basics
- Opioid overdose occurs when a person takes opioids in larger quantities than are physically tolerated.
- Signs include central nervous system and respiratory depression, miosis, and apnea.
- The patient's history from bystanders/friends/family can assist diagnosis.
- Initial treatment consists of ensuring adequate ventilation and consideration of the opioid antagonist naloxone.
- Patients should be monitored for resedation and antidote dose repeated if necessary.
Quick Reference
History & Exam
Key Factors
Other Factors
Diagnostics Tests
Treatment Options
Definition
Epidemiology
Etiology
Pathophysiology
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Citations
Dowell D, Ragan KR, Jones CM, et al. CDC clinical practice guideline for prescribing opioids for pain - United States, 2022. MMWR Recomm Rep. 2022 Nov 4;71(3):1-95.[Abstract][Full Text]
Centers for Disease Control and Prevention, National Center for Injury Prevention and Control. Evidence-based strategies for preventing opioid overdose: what's working in the United States. 22 October 2020 [internet publication].[Full Text]
Dezfulian C, Orkin AM, Maron BA, et al. Opioid-associated out-of-hospital cardiac arrest: distinctive clinical features and implications for health care and public responses: a scientific statement from the American Heart Association. Circulation. 2021 Apr 20;143(16):e836-70.[Abstract][Full Text]
Resuscitation Council UK. 2021 resuscitation guidelines. 2021 [internet publication]. [Full Text]
Williams K, Lang ES, Panchal AR, et al. Evidence-based guidelines for EMS administration of naloxone. Prehosp Emerg Care. 2019 Nov-Dec;23(6):749-63.[Abstract][Full Text]
Lavonas EJ, Akpunonu PD, Arens AM, et al. 2023 American Heart Association focused update on the management of patients with cardiac arrest or life-threatening toxicity due to poisoning: an update to the American Heart Association guidelines for cardiopulmonary resuscitation and emergency cardiovascular care. Circulation. 2023 Oct 17;148(16):e149-84.[Abstract][Full Text]
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32. Lavonas EJ, Akpunonu PD, Arens AM, et al. 2023 American Heart Association focused update on the management of patients with cardiac arrest or life-threatening toxicity due to poisoning: an update to the American Heart Association guidelines for cardiopulmonary resuscitation and emergency cardiovascular care. Circulation. 2023 Oct 17;148(16):e149-84.[Abstract][Full Text]
33. Boyer EW. Management of opioid analgesic overdose. N Engl J Med. 2012 Jul 12;367(2):146-55.[Abstract][Full Text]
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35. Mills CA, Flacke JW, Miller JD, et al. Cardiovascular effects of fentanyl reversal by naloxone at varying arterial carbon dioxide tensions in dogs. Anesth Analg. 1988 Aug;67(8):730-6.[Abstract]
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38. Kerr D, Kelly AM, Dietze P, et al. Randomized controlled trial comparing the effectiveness and safety of intranasal and intramuscular naloxone for the treatment of suspected heroin overdose. Addiction. 2009 Dec;104(12):2067-74.[Abstract]
39. Chou R, Korthuis PT, McCarty D, et al. Management of suspected opioid overdose with naloxone in out-of-hospital settings: a systematic review. Ann Intern Med. 2017 Dec 19;167(12):867-75.[Abstract][Full Text]
40. Dietze P, Jauncey M, Salmon A, et al. Effect of intranasal vs intramuscular naloxone on opioid overdose: a randomized clinical trial. JAMA Netw Open. 2019 Nov 1;2(11):e1914977.[Abstract][Full Text]
41. Sutter ME, Gerona RR, Davis MT, et al. Fatal fentanyl: one pill can kill. Acad Emerg Med. 2017 Jan;24(1):106-13.[Abstract][Full Text]
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43. Howland MAH. Antidotes in depth opioid antagonists. In: Goldfrank LR, Flomenbaum NE, Lewin NA, et al, eds. Goldfrank's toxicological emergencies. 8th ed. New York, NY: McGraw-Hill; 2006:614-7.
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50. Purdue Pharma. FDA approves nalmefene HCl injection, 2mg/2mL (1mg/1mL) for the treatment of known or suspected opioid overdose with natural or synthetic opioids. 23 February 2022 [internet publication].[Full Text]
51. National Institute for Health and Care Excellence. Drug misuse in over 16s: opioid detoxification. July 2007 [internet publication].[Full Text]
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