Pharmacogenomics is that the study of the role of the ordering in drug response. Pharmacogenomics analyzes however the genetic makeup of a personal affects his/her response to medicine. It deals with the influence of nonheritable and heritable genetic variation on drug response in patients by correlating organic phenomenon or single-nucleotide polymorphisms with pharmacology and pharmacodynamics. The term pharmacogenomics is usually used interchangeably with genetics. though each terms relate to drug response supported genetic influences, genetics focuses on single drug-gene interactions, whereas pharmacogenomics encompasses an additional genome-wide association approach, incorporating genetics and epigenetics whereas addressing the consequences of multiple genes on drug response. Pharmacogenomics aims to develop rational means that to optimize drug medical care, with reference to the patients genotype, to make sure most potency with marginal adverse effects. Through the employment of pharmacogenomics, its hoped that pharmaceutical drug treatments will deviate from whats dubbed because the one-dose-fits-all approach. Pharmacogenomics additionally tries to eliminate the trial-and-error methodology of prescribing, permitting physicians to require into thought their patients genes, the practicality of those genes, and the way this could have an effect on the effectualness of the patients current or future treatments.