Toxicology is "the study of toxins." As how we might interpret how different specialists can hurt people and different creatures, a more unmistakable meaning of toxicology [1] is "the investigation of the antagonistic impacts of synthetic compounds or actual specialists on living beings".  Poison and toxic substance are frequently utilized reciprocally in [2] the writing; not with standing, There are Harmful substances might be foundational poisons or organ poisons. A foundational poison is one that influences the whole body or numerous organs rather than a explicit site.