Drug overdose

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File:Fentanyl. 2 mg. A lethal dose in most people.jpg
Fentanyl. 2 mg (white powder to the right) is a lethal dose in most people.[1] US penny is 19 mm (0.75 in) wide.

A drug overdose (overdose or OD) is the ingestion or application of a drug or other substance in quantities much greater than are recommended.[2][3] Typically the term is applied for cases when a risk to health is a potential result.[2] An overdose may result in a toxic state or death.[3]

Classification

The word "overdose" implies that there is a common safe dosage and usage for the drug; therefore, the term is commonly applied only to drugs, not poisons, even though many poisons as well are harmless at a low enough dosage. Drug overdose is sometimes used as a means to commit suicide, as the result of intentional or unintentional misuse of medication. Intentional misuse leading to overdose can include using prescribed or non-prescribed drugs in excessive quantities in an attempt to produce euphoria.

Usage of illicit drugs, in large quantities, or after a period of drug abstinence can also induce overdose. Cocaine and opioid users who inject intravenously can easily overdose accidentally, as the margin between a pleasurable drug sensation and an overdose is small.[4] Unintentional misuse can include errors in dosage caused by failure to read or understand product labels. Accidental overdoses may also be the result of over-prescription, failure to recognize a drug's active ingredient or unwitting ingestion by children.[5] A common unintentional overdose in young children involves multivitamins containing iron.

The term 'overdose' is often misused as a descriptor for adverse drug reactions or negative drug interactions due to mixing multiple drugs simultaneously.

Signs and symptoms

Signs and symptoms of an overdose vary depending on the drug, its ingredients, the amount consumed, and exposure to toxins. The symptoms can often be divided into differing toxidromes. This can help one determine what class of drug or toxin is causing the difficulties.

Symptoms of opioid overdoses include slow breathing, heart rate and pulse.[6] Opioid overdoses can also cause pinpoint pupils, and blue lips and nails due to low levels of oxygen in the blood. A person experiencing an opioid overdose might also have muscle spasms, seizures and decreased consciousness. A person experiencing an opiate overdose usually will not wake up, even if their name is called or they are shaken vigorously.

Causes

The drugs or toxins that are most frequently involved in overdose and death (grouped by ICD-10): Template:Div col

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Added flavoring

Masking undesired taste may impair judgement of the potency, which is a factor in overdosing. For example, lean is usually created as a drinkable mixture, the cough syrup is combined with soft drinks, especially fruit-flavored drinks such as Sprite, Mountain Dew or Fanta, and is typically served in a foam cup.[7][8] A hard candy, usually a Jolly Rancher, may be added to give the mixture a sweeter flavor.[9]

Diagnosis

The substance that has been taken may often be determined by asking the person. However, if they will not, or cannot, due to an altered level of consciousness, provide this information, a search of the home or questioning of friends and family may be helpful.

Examination for toxidromes, drug testing, or laboratory test may be helpful. Other laboratory test such as glucose, urea and electrolytes, paracetamol levels and salicylate levels are typically done. Negative drug-drug interactions have sometimes been misdiagnosed as an acute drug overdose, occasionally leading to the assumption of suicide.[10]

Toxidromes[11]
Symptoms Blood
Pressure		 Heart rate Respiratory
Rate		 Temperature Pupils Bowel
Sounds		 Diaphoresis
Anticholinergic ~
Template:Clarify		 up ~ up dilated down down
Cholinergic ~ ~ unchanged unchanged constricted up up
Opioid down down down down constricted down down
Sympathomimetic up up up up dilated up up
Sedative-hypnotic down down down down ~ down down

Prevention

The distribution of naloxone to injection drug users and other opioid drug users decreases the risk of death from overdose.[12] The Centers for Disease Control and Prevention (CDC) estimates that U.S. programs for drug users and their caregivers prescribing take-home doses of naloxone and training on its utilization are estimated to have prevented 10,000 opioid overdose deaths.[13] Healthcare institution-based naloxone prescription programs have also helped reduce rates of opioid overdose in the U.S. state of North Carolina, and have been replicated in the U.S. military.[14][15] Nevertheless, scale-up of healthcare-based opioid overdose interventions is limited by providers' insufficient knowledge and negative attitudes towards prescribing take-home naloxone to prevent opioid overdose.[16] Programs training police and fire personnel in opioid overdose response using naloxone have also shown promise in the U.S.[17]

Supervised injection sites (also known as overdose prevention centers) have been used to help prevent drug overdoses by offering opioid reversal medications such as naloxone, medical assistance and treatment options. They also provide clean needles to help prevent the spread of diseases like HIV/AIDS and hepatitis.[18][19][20][21]

Management

File:CharcoalPO.jpg
Activated charcoal is a commonly used agent for decontamination of the gastrointestinal tract in overdoses.

Stabilization of the person's airway, breathing, and circulation (ABCs) is the initial treatment of an overdose. Ventilation is considered when there is a low respiratory rate or when blood gases show the person to be hypoxic. Monitoring of the patient should continue before and throughout the treatment process, with particular attention to temperature, pulse, respiratory rate, blood pressure, urine output, electrocardiography (ECG) and O2 saturation.[22] Poison control centers and medical toxicologists are available in many areas to provide guidance in overdoses both to physicians and to the general public.

Antidotes

Specific antidotes are available for certain overdoses. For example, naloxone is the antidote for opiates such as heroin or morphine. Similarly, benzodiazepine overdoses may be effectively reversed with flumazenil. As a nonspecific antidote, activated charcoal is frequently recommended if available within one hour of the ingestion and the ingestion is significant.[23] Gastric lavage, syrup of ipecac, and whole bowel irrigation are rarely used.[23]

Epidemiology and statistics

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File:2 milligrams of fentanyl on pencil tip. A lethal dose for most people. US Drug Enforcement Administration.jpg
A two milligram dose of fentanyl powder (on pencil tip) is a lethal amount for most people.[24]

The UN gives a figure of 300,000 deaths per year in the world through drug overdose.Template:Fact

In the US around 84,100 people died in the 12-month period ending October 31, 2024, at a rate of 230 deaths per day. The peak was around 112,600 in 2022.[25] The U.S. drug overdose death rate has gone from 2.5 per 100,000 people in 1968 to the peak rate of 33.7 per 100,000 in 2022.[26][25]

1,015,060 US residents died from drug overdoses from 1968 to 2019. 22 people out of every 100,000 died from drug overdoses in 2019 in the US.[26] From 1999 to Feb 2019 in the United States, more than 770,000 people have died from drug overdoses.[27] 70,630 people died from drug overdoses in 2019.[28]

The National Center for Health Statistics reports that 19,250 people died of accidental poisoning in the U.S. in the year 2004 (eight deaths per 100,000 population).[29]

In 2008 testimony before a Senate subcommittee, Leonard J. Paulozzi,[30] a medical epidemiologist at the Centers for Disease Control and Prevention said that in 2005 more than 22,000 American people died due to overdoses, and the number is growing rapidly. Paulozzi also testified that all available evidence suggests unintentional overdose deaths are related to the increasing use of prescription drugs, especially opioid painkillers.[31] However, the vast majority of overdoses are also attributable to alcohol. It is very rare for a victim of an overdose to have consumed just one drug. Most overdoses occur when drugs are ingested in combination with alcohol.[32]

Drug overdose was the leading cause of injury death in 2013. Among people 25 to 64 years old, drug overdose caused more deaths than motor vehicle traffic crashes. There were 43,982 drug overdose deaths in the United States in 2013. Of these, 22,767 (51.8%) were related to prescription drugs.[33]

The 22,767 deaths relating to prescription drug overdose in 2013, 16,235 (71.3%) involved opioid painkillers, and 6,973 (30.6%) involved benzodiazepines. Drug misuse and abuse caused about 2.5 million emergency department (ED) visits in 2011. Of these, more than 1.4 million ED visits were related to prescription drugs. Among those ED visits, 501,207 visits were related to anti-anxiety and insomnia medications, and 420,040 visits were related to opioid analgesics.[34]

New CDC data in 2024 demonstrates U.S. drug overdose deaths have significantly declined, marking the potential for the first year with fewer than 100,000 fatalities since 2020.[35] The CDC data shows a nearly 17% drop in reported overdose deaths during the 12 months ending in June, totaling 93,087.[36] This is a notable decrease from the 111,615 deaths recorded in the same period ending in June 2023. While the opioid crisis continues to take a heavy toll, fentanyl remains a major driver, contributing to the majority of these fatalities.[37]

See also

References

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Further reading

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External links

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  1. ↑ Fentanyl. Image 4 of 17. US DEA (Drug Enforcement Administration). See archive with caption: "photo illustration of 2 milligrams of fentanyl, a lethal dose in most people".
  2. ↑ a b Template:Usurped Retrieved on September 20, 2014.
  3. ↑ a b "Stairway to Recovery: Glossary of Terms" Template:Webarchive. Retrieved on March 19, 2021
  4. ↑ Study on fatal overdose Template:Webarchive in New-York City 1990-2000, visited May 11, 2008,
  5. ↑ "What to do with leftover medicines". Medicines Talk, Winter 2005. Available at Script error: No such module "citation/CS1".
  6. ↑ Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".
  10. ↑ "Column—Fatal Drug-Drug Interaction As a Differential Consideration in Apparent Suicides" Template:Webarchive.
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Script error: No such module "Citation/CS1".
  13. ↑ Script error: No such module "Citation/CS1".
  14. ↑ Script error: No such module "Citation/CS1".
  15. ↑ Template:Cite report
  16. ↑ Script error: No such module "Citation/CS1".
  17. ↑ Script error: No such module "Citation/CS1".
  18. ↑ Script error: No such module "citation/CS1".
  19. ↑ Script error: No such module "citation/CS1".
  20. ↑ Script error: No such module "citation/CS1".
  21. ↑ Script error: No such module "Citation/CS1".
  22. ↑ Script error: No such module "citation/CS1".
  23. ↑ a b Script error: No such module "Citation/CS1".
  24. ↑ Script error: No such module "citation/CS1".
  25. ↑ a b Products - Vital Statistics Rapid Release - Provisional Drug Overdose Data. Centers for Disease Control and Prevention. Hover cursor over the end of the graph in Figure 1A to get the latest number. Scroll down the page and click on the dropdown data table called "Data Table for Figure 1a. 12 Month-ending Provisional Counts of Drug Overdose Deaths". The number used is the "predicted value" for the 12 month period that is ending at the end of that month. That number changes as more info comes in. If there are problems use a different browser.
  26. ↑ a b Data is from these saved tables from CDC Wonder at the Centers for Disease Control and Prevention, National Center for Health Statistics. The tables have totals, rates, and US populations per year.
  27. ↑ STATCAST—Week of September 9, 2019. NCHS Releases New Monthly Provisional Estimates on Drug Overdose Deaths. National Center for Health Statistics.
  28. ↑ a b c d e f g Overdose Death Rates. And Template:Webarchive. By National Institute on Drug Abuse.
  29. ↑ Referral Page—FASTSTATS—Accidents or Unintentional Injuries Template:Webarchive Retrieved on September 20, 2014.
  30. ↑ CDC Expert, Leonard J. Paulozzi, MD, MPH Template:Webarchive Retrieved on September 20, 2014.
  31. ↑ CDC Washington Testimony March 5, 2008 Template:Webarchive Retrieved on September 20, 2014.
  32. ↑ "The Persistent, Dangerous Myth of Heroin Overdose" Template:Webarchive.
  33. ↑ "Understanding the Epidemic | Drug Overdose | CDC Injury Center" Template:Webarchive.
  34. ↑ "Prescription Opioid Overdose Data | Drug Overdose | CDC Injury Center" Template:Webarchive.
  35. ↑ Script error: No such module "citation/CS1".
  36. ↑ Script error: No such module "citation/CS1".
  37. ↑ Script error: No such module "citation/CS1".
  38. ↑ Opioid Data Analysis and Resources. Drug Overdose. CDC Injury Center. Centers for Disease Control and Prevention. Click on "Rising Rates" tab for a graph. See data table below the graph.
  39. ↑ NCHS Data Visualization Gallery—Drug Poisoning Mortality. From National Center for Health Statistics. Open the dashboard dropdown menu and pick "U.S. Trends". From the menus on the right pick all races, all ages, and both sexes. Run your cursor over the graph to see the data.
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