Pharmacology is said to be the research of how an element is associated with living organisms to constitute an adjustment in the capacity. Pharmacology is said to be a branch of biomedical science, encompassing clinical pharmacology namely associated with the effects of drugs and pharmaceuticals products and added xenobiotics on living systems, as well as their growth and chemical features. Toxicology is the study of poisons or exactly the study of how chemical compounds interfere with the normal function of a biological system. According to the 15thcenturyphysician and father of toxicology, Paracelsus (1493-1541), “All substances are poisons; there is none which is not a poison. The right dose changes a poison and a remedy,” or the dose from the poison.