Pharmacogenetics involves the association of properties in a singular response to drugs. All in all, the field covers a vast region, including essential drug discovery research, the hereditary premise of pharmacokinetics and pharmacodynamics, new drug improvement, hereditary patient testing, and clinical patient management. Ultimately, the goal of pharmacogenetics is to predict a patient's inherited response to a particular drug in order to mediate the most ideal clinical treatment. By anticipating an individual's drug response, it will be possible to amplify the results of treatments and reduce the incidence of unfriendly side effects.