TY - CHAP M1 - Book, Section TI - Pharmacogenomics A1 - Krasowski, Matthew D. A2 - South-Paul, Jeannette E. A2 - Matheny, Samuel C. A2 - Lewis, Evelyn L. PY - 2020 T2 - CURRENT Diagnosis & Treatment: Family Medicine, 5e AB - Pharmacogenomics (also known as pharmacogenetics) is a component of individualized (“personalized”) medicine that addresses how genetic factors impact drug therapy, with the goal of optimizing drug therapy and ensuring maximal efficacy with minimal side effects. The effect of drugs is traditionally divided into pharmacokinetics (how drugs are absorbed, distributed, metabolized, and eliminated) and pharmacodynamics (the molecular target or targets underlying the therapeutic effect). In principle, genetic variation can influence pharmacokinetics, pharmacodynamics, or both. Currently, most clinical applications of pharmacogenomics involve drug metabolism, but with a steady rise in applications involving pharmacodynamics. Many of the current pharmacogenomic clinical applications focus on the cytochrome P450 (CYP) enzymes. The sequencing of the human genome and intensive research into how genetic variation affects drug response hold the promise of altering the paradigms for medication therapy. However, current clinical applications using pharmacogenomics are still rather limited primarily due to limited evidence that such testing is cost effective and provides clinical benefit. The coming years should see steady growth in this field that will allow primary care providers and other health professionals to better manage drug therapy. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/04/24 UR - accessmedicine.mhmedical.com/content.aspx?aid=1173717960 ER -