Toxicology and Poisons

Hope Lively B7

What is Poison?

A poison is a substance that is capable of causing an illness or lead death of a living organism when introduced or absorbed.

A toxicant "All substances are poisons; there is none which is not a poison, The right dose differentiates a poison and a remedy." Paracelsus(1493-1541)

The shape, size, and solubility of the toxicant will determines how easily it will enter the body, how it will distribute within the body, and the rate of its excretion from the body.
Example: Herbicide 2, 4-D is toxic to dandelions but not grass.

Poisons are difficult to detect

Not all poisons are easily detected by comprehensive drug screens.

Parts of the body that will be tested

Toxicologists test body fluids, body tissue, the brain, spleen and liver to detect poisons.