Molecular Classification
Inorganic anion, Pseudohalide
Other Names
Cyano group, CN-, Cyanide
Disease Roles
ToxicologyPoisoningHypoxia

Cyanide Ion Overview

The cyanide ion (CN⁻) is a highly toxic inorganic anion that inhibits cellular respiration by binding to cytochrome c oxidase. It is not a therapeutic target in the traditional sense but is rather a toxic molecule that must be neutralized via antidotes if exposure has occurred.

Mechanism of Action

Inhibits cytochrome c oxidase (complex IV) in the mitochondrial electron transport chain, blocking cellular respiration.

Biological Functions

Inhibitor of cellular respiration
Blocks oxygen utilization
Induces hypoxia

Disease Associations

Toxicology
Poisoning
Hypoxia

Safety Considerations

  • Extremely high toxicity
  • Rapid onset of action
  • Potential for widespread organ damage due to hypoxia

Interacting Drugs

Antidotes (e.g., hydroxocobalamin, sodium nitrite, sodium thiosulfate)