Mechanisms of Action of Poisons-Poisoning

Mechanisms of Action of Poisons- Poisoning

Poison                          Mechanism of action

Ingested poisons – They act directly on the digestive tract causing pain, vomiting, and diarrhea.     

Corrosive poisons – on swallowing, they burn tissues severely , e.g. lips, mouth, esophagus, and stomach.

Fumes and gases – they cause choking, which may lead to difficulty in breathing and unconsciousness.

Chemical poisons – their toxic effects may be seen on the organs they reach through the bloodstream, e.g. nervous system, heart, liver etc.

Enzyme inhibitors – they inhibit various enzymes in the body required for metabolic function of the body, e.g. displacement of oxygen in the blood, preventing its distribution to the tissues.

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