The CYP2C19 Genotyping Diagnostic Kit is an in vitro diagnostic test used to detect and identify the polymorphisms of CYP2C19*2（c. 681G＞A）, CYP2C19*3（c. 636G＞A）and CYP2C19*17（c. -806C＞T）in human whole blood samples. This kit is a qualitative genotyping assay that can be used as an aid to clinicians in determining the strategy for the therapeutics that are metabolized by the CYP2C19 gene product. The test results are for clinical reference only and cannot be used as a basis for confirming or excluding cases alone.