Defnyddir y pecyn hwn ar gyfer canfod ansoddol in vitro o amryffurfedd genynnau CYP2C19 CYP2C19*2 (rs4244285, c.681G>A), CYP2C19*3 (rs4986893, c.636G>A), CYP2C19*174 (rs17,806), CYP2C19*174 (rs4244285, c.681G>A). >T) mewn DNA genomig o samplau gwaed cyfan dynol.