title: Pharmacogenetics and clinical gastroenterology.
abstract: Many drugs exhibit variable efficacy and toxicity. Pharmacogenetics explores the genetic underpinnings of variable drug response. Pharmacogenetic testing is beginning to enter the clinic and will have a significant impact on the practice of clinical gastroenterology. Thiopurine S-methyltransferase screening, which will likely become routine for thiopurine recipients, illustrates the promise and limitations of pharmacogenetics. Testing for variation in other drug metabolism pathways may also become important. Pharmacogenetics will complement but not replace traditional methods for choosing drugs and for selecting dosing regimens for narrow-therapeutic-index drugs.
authors.affiliation: General Clinical Research Center, University of North Carolina at Chapel Hill, 27514, USA.
authors.forename: Raymond C
authors.initials: RC
authors.lastname: Givens
authors.forename: Paul B
authors.initials: PB
authors.lastname: Watkins
mesh_terms: D005762:Gastroenterology / Q000639:trends*; D005765:Gastrointestinal Agents / Q000493:pharmacokinetics*; D005767:Gastrointestinal Diseases / Q000188:drug therapy*; D006801:Humans; D010597:Pharmacogenetics / Q000639:trends*
chemical_list: D005765:Gastrointestinal Agents