ABSTRACT
Pharmacogenetics and pharmacogenomics investigate the genetic factors that influence an individual’s reaction to a drug. The difference between the two is a question of magnitude: pharmacogenetic studies investigate either single genes, or a limited number of genes, whereas pharmacogenomic research includes studies from several genes up to entire genome investigations. As the distinction between the two is not precisely defined, we will use the term pharmacogenetics unless specifically referring to genome-wide investigations.
