Related Experiment Video
Updated: Sep 28, 2025
07:38
A General Method for Detecting Nitrosamide Formation in the In Vitro Metabolism of Nitrosamines by Cytochrome P450s
Published on: September 25, 2017
10.2K
Survival after self-poisoning with sodium nitrite: A case report
Adiba M Matin1, Eric T Boie1, Gregory P Moore1
1Department of Emergency Medicine Mayo Clinic Rochester Minnesota USA.
Journal of the American College of Emergency Physicians Open
|March 28, 2022
Summary
Sodium nitrite self-poisoning is increasing. Prompt treatment with intravenous methylene blue can lead to favorable outcomes in sodium nitrite ingestion cases.
Area of Science:
- Toxicology
- Emergency Medicine
- Public Health
Background:
- Sodium nitrite is a common food preservative increasingly available online.
- Online forums promote sodium nitrite for self-harm, contributing to rising incidence.
- Media coverage has amplified public awareness of sodium nitrite toxicity.
Observation:
- A case of intentional sodium nitrite ingestion with a positive outcome is presented.
- The patient was successfully treated with intravenous methylene blue.
- Sodium nitrite toxicity can cause severe methemoglobinemia and high mortality.
Findings:
- Prompt identification and treatment are crucial for managing sodium nitrite poisoning.
- Intravenous methylene blue is an effective antidote for sodium nitrite-induced methemoglobinemia.
- Early intervention significantly improves patient prognosis.
Implications:
- Increased media attention and online accessibility of sodium nitrite pose public health risks.
- The phenomenon of imitative suicide related to sodium nitrite warrants further investigation.
- Public health strategies are needed to address the growing threat of sodium nitrite self-poisoning.
Related Concept Videos
01:14Prevention of Further Absorption of Poison
950
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...
950
01:202° Amines to N-Nitrosamines: Reaction with NaNO2
4.6K
Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.
4.6K
01:26Anticholinesterase Agents: Poisoning and Treatment
1.1K
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...
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is...
1.1K
01:17Antidotes
786
Antidotes are medicinal substances used to counteract the harmful effects of toxins or drugs in the body. They function in various ways, each uniquely designed to combat specific toxic compounds.
Specific antidotes operate by inhibiting the enzymes that control biochemical pathways, reducing the production of harmful metabolites.
An example of an antidote is atropine, which counteracts the detrimental effects of cholinesterase inhibitors. It achieves this by deactivating muscarinic receptors,...
Specific antidotes operate by inhibiting the enzymes that control biochemical pathways, reducing the production of harmful metabolites.
An example of an antidote is atropine, which counteracts the detrimental effects of cholinesterase inhibitors. It achieves this by deactivating muscarinic receptors,...
786
01:26Enhanced Elimination of Poison
597
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...
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...
597
01:26Physical Properties of Amines
3.5K
Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
3.5K