Variagenics was a pioneer in the field of pharmacogenomics, exploring the ways in which genetic variations among patients influence their response to particular drugs. It developed and commercialized proprietary gene variance detection technology to streamline drug development. Although its technology was ultimately absorbed into other companies, Variagenics contributed to the development of what is now understood as personalized medicine, a way of diagnosing medical conditions, selecting specific therapeutic drugs, and determining dosages based on a highly-tailored understanding of the patient’s individual genetic profile.