Most PGx copy number detection methods cannot detect hybrid alleles. They only look at one or two regions on the gene. That is not enough. You need a technology that looks broadly across the gene to catch these structural changes.
The VeriDose® CYP2D6 Panel accurately detects CNVs even in the presence of difficult to detect hybrid alleles. It interrogates 22 points in 7 regions of the CYP2D6 gene using a single well.