Pharmacogenetics is the study of the link between DNA mutations and drug response.
Pharmacogenetics analyzes how the genetic makeup of an individual affects his/her response to drugs.
It deals with the influence of acquired and inherited genetic variation on drug response in patients
by correlating gene expression or single-nucleotide polymorphisms with pharmacokinetics (drug
absorption, distribution, metabolism, and elimination) and pharmacodynamics (effects mediated through
a drug’s biological targets).