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Related Concept Videos

Pharmaceutical Poisoning: Treatment Strategies01:26

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Treatment strategies for poisoning are a critical aspect of emergency medicine, focusing on preventing the absorption of toxins and enhancing their elimination. When a poisoning incident occurs, the first response is to halt exposure and decontaminate the patient, particularly through gastrointestinal (GI) methods if the poison was ingested.Gastrointestinal Decontamination Techniques:Activated charcoal is the cornerstone of GI decontamination. It works through adsorption, binding the toxin to...
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Anticholinesterases, also known as cholinesterase inhibitors, work by blocking the breakdown of acetylcholine, leading to its accumulation in the synaptic cleft. This accumulation indirectly enhances both muscarinic and nicotinic actions. These agents are classified as reversible or irreversible based on their mechanism of action.     
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In cases of acute poisoning, the primary objective is to prevent further absorption of the toxic substance into the body. Immediate interventions using various decontamination techniques targeting the gastrointestinal (GI) tract can achieve this. Decontamination is crucial to prevent poison from entering the systemic circulation, which involves washing affected areas with water and mild soap and removing contaminated clothing. Once external decontamination is done, attention must be turned to...
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Pharmaceutical poisoning can occur through various channels, impacting an estimated 2 million hospitalized patients in the U.S. annually with serious adverse drug responses. These scenarios encompass both therapeutic uses, such as drug toxicity, where even standard dosages can lead to severe central nervous system depression, and non-therapeutic exposures, including accidental ingestion by children, and environmental and occupational exposures.Unintentional poisonings often involve exploratory...
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Drug toxicities can be stratified into pharmacological, pathological, or genotoxic based on their mechanisms. The incidence and severity of these toxicities generally increase with the drug's concentration in the body and exposure time.Pharmacological toxicity is evident when the therapeutic effects of drugs overshoot into adverse reactions in a predictable, dose-dependent manner. Central nervous system (CNS) depression from barbiturates is a classic example, with effects escalating from...
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Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
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Paracetamol (acetaminophen) poisoning.

B Kevin Park1, James W Dear, Daniel J Antoine

  • 1MRC Centre for Drug Safety Science, University of Liverpool, Liverpool, UK.

BMJ Clinical Evidence
|October 20, 2015
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Summary
This summary is machine-generated.

This systematic overview examines treatments for acute paracetamol poisoning. It categorizes the effectiveness of six interventions, including activated charcoal and acetylcysteine, for managing paracetamol overdose.

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Area of Science:

  • Toxicology
  • Clinical Pharmacology
  • Evidence-Based Medicine

Background:

  • Paracetamol (acetaminophen) overdose is a significant cause of acute liver injury and mortality.
  • Approximately 150 deaths annually in the UK are directly attributed to paracetamol toxicity.

Purpose of the Study:

  • To systematically review and categorize the effects of various treatments for acute paracetamol poisoning.
  • To answer the clinical question regarding the efficacy and safety of interventions for paracetamol overdose.

Main Methods:

  • A systematic overview methodology was employed.
  • Searches were conducted across major databases including Medline, Embase, and The Cochrane Library up to October 2014.
  • Study selection involved screening 64 records, with 18 full publications undergoing detailed evaluation.

Main Results:

  • The review identified and evaluated evidence for six key interventions.
  • Data on the effectiveness and safety of activated charcoal, gastric lavage, haemodialysis, liver transplant, methionine, and acetylcysteine were assessed.
  • A GRADE evaluation was performed for three PICO (Population, Intervention, Comparison, Outcome) combinations.

Conclusions:

  • The efficacy of six interventions for acute paracetamol poisoning has been categorized.
  • Findings provide a basis for understanding the effectiveness and safety profiles of treatments like activated charcoal and acetylcysteine.
  • This overview synthesizes evidence to guide clinical decision-making in managing paracetamol overdose.