Sodium cyanide is a fast-acting poison that works by blocking the body's ability to use oxygen. It is often used as a pesticide or fumigant, but it has also been used in homicides and suicides.
Even small amounts of sodium cyanide can be fatal. Symptoms of cyanide poisoning can include:
* Headache
* Dizziness
* Nausea
* Vomiting
* Confusion
* Seizures
* Loss of consciousness
* Death
There is no antidote for cyanide poisoning. Treatment involves removing the person from the source of cyanide and providing supportive care, such as oxygen therapy and intravenous fluids.
Sodium cyanide is a dangerous chemical that should only be used by trained professionals in controlled environments. It should never be used by fishermen or anyone else who is not qualified to handle it safely.