Pharmacology is the study of drugs. It involves in examining the interactions of chemical substances with living organism, with a view to understanding the properties of medicine and their actions, as well as the interactions between drug molecules and drug receptors and the way these interactions elicit an impact. Pharmacology provides the scientific basis and principles for a variety of special applications, just like the study of drug actions among the health sciences, the utilization of medicine as therapeutic agents in medication or as tools in research, and also the development and regulation of prescription drugs.
Toxicology is the study of the adverse effects of chemicals (including drugs) on living systems and also the means that to stop or ameliorate such effects. In addition to therapeutic agents, toxicologists examine several environmental agents and chemical compounds that are synthesized by humans or that originate in nature. The toxic effects of those agents might vary from disturbances in growth patterns, discomfort, illness or death of individual organisms or on whole ecosystems.
