phar·ma·co·ge·no·mics 
(fär′mə-kō-jə-nōmĭks)
(fär′mə-kō-jə-nōmĭks)n. (used with a sing. verb)
The study of inherited variations in genetic factors that influence a patient's metabolic response to a given drug, especially adverse side effects. Also called pharmacogenetics.