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Related Concept Videos

Pharmaceutical Poisoning: Treatment Strategies01:26

Pharmaceutical Poisoning: Treatment Strategies

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...
Prevention of Further Absorption of Poison01:14

Prevention of Further Absorption of Poison

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...
Enhanced Elimination of Poison01:26

Enhanced Elimination of Poison

Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Anticholinesterase Agents: Poisoning and Treatment01:26

Anticholinesterase Agents: Poisoning and Treatment

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.     
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is slower than the...
Pharmaceutical Poisoning: Potential Scenarios01:26

Pharmaceutical Poisoning: Potential Scenarios

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...
Chemical Agents for Microbial Control01:27

Chemical Agents for Microbial Control

Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...

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Related Experiment Video

Updated: Jun 3, 2026

The Portable Chemical Sterilizer (PCS), D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military
14:17

The Portable Chemical Sterilizer (PCS), D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military

Published on: June 29, 2014

Barbicidal overdose.

Asim Nayeem1, Samer Elkhodair, Thiagarajan Jaiganesh

  • 1St Georges Hospital, Blackshaw road, Tooting, SW17 0QT London UK.

International Journal of Emergency Medicine
|March 5, 2011
PubMed
Summary

Acute severe methemoglobinemia, a dangerous condition from oxidizing agents, is treatable if recognized. This case highlights a rare barbicide overdose, emphasizing the need for awareness of this life-threatening condition.

Area of Science:

  • Toxicology
  • Hematology
  • Emergency Medicine

Background:

  • Methemoglobinemia is a life-threatening condition impairing oxygen transport.
  • Oxidizing agents in healthcare and industry can cause methemoglobinemia.
  • Pulse oximetry readings are unreliable in methemoglobinemia, causing diagnostic challenges.

Purpose of the Study:

  • To present a case of severe methemoglobinemia due to barbicide self-poisoning.
  • To discuss the pathophysiology of methemoglobinemia.
  • To provide an overview of treatment strategies for methemoglobinemia.

Main Methods:

  • Case report presentation.
  • Review of relevant medical literature.
  • Discussion of pathophysiology and treatment.
Keywords:
BarbicideBenzalkonium chlorideIsopropyl alcoholMethemoglobinaemiaMethylene blue

Related Experiment Videos

Last Updated: Jun 3, 2026

The Portable Chemical Sterilizer (PCS), D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military
14:17

The Portable Chemical Sterilizer (PCS), D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military

Published on: June 29, 2014

Main Results:

  • A severe case of methemoglobinemia caused by barbicide overdose was successfully treated.
  • This represents the first reported case of methemoglobinemia due to barbicide ingestion.
  • Standard treatments for methemoglobinemia were effective.

Conclusions:

  • Acute severe methemoglobinemia is a critical, yet treatable, condition.
  • Barbicide is a potential cause of methemoglobinemia, necessitating prompt medical intervention.
  • Early recognition and treatment are crucial for favorable outcomes in methemoglobinemia.