Thank you for your inquiry.
I am not aware of, nor could I find with a literature search, any “DNA test for drug allergy.” Your patients may be referring to a site which “finds intolerances” using hair analysis. Here is the link in case you would like to look at this site and see if this is the information to which your patients were referring.
Thank you again for your inquiry and we hope this response is helpful to you.
Phil Lieberman, M.D.