 Primexs PGX assay is an in vitro, semi automated assay, intended for the determination of certain genes involved in drug metabolism utilizing buccal swabs. Detection of certain genotypes is used as an aid in the selection of appropriate medications based on the individuals specific genotype and should be used in conjunction with other clinical information. The results from this tests constitutes one parameter in a multicriterion medication selection process, encompassing both clinical and laboratory-based assessments. 