Pharmacogenomics, the utilization of genetic information to predict outcome
of drug treatment (therapeutic and side-effects), holds great promise for
clinical medicine. The pharmacotherapy of psychiatric disorders exhibits wi
de variability in therapeutic response with little scientific guidance for
treatment on a patient-by-patient basis. The emerging field of pharmacogeno
mics holds great potential for refining and optimizing psychopharmacology.
Key components for future development of the pharmacogenomics of psychiatri
c disorders include understanding the mechanism of drug action, identificat
ion of candidate genes and their variants, and weil-conducted clinical tria
ls. In this article, data from recent studies are examined with particular
emphasis on methodological requirements and direction for future research.