Hi @jmmb,

Pharmacogenomics, or pharmacogenetics is the study of how your genes affect your body’s response to medications – it can help your doctor determine the best medication for you.
Here's some more information from Mayo Clinic's Center for Individualized Medicine: http://mayoresearch.mayo.edu/mayo/research/center-for-individualized-medicine/drug-gene-testing.asp

You may also wish to view these videos:
http://medprofvideos.mayoclinic.org/videos/pharmacogenomics-right-drug-right-dose-right-time?_ga=2.173922019.1154568119.1508540887-2033052444.1499398509
The National Human Genome Research Institute, https://www.genome.gov/health/ has some great educational materials and resources about genomics, individualized medicine, and to assist you in making a decision about pursuing this type of health care.

I hope this helps; let us know if you have any more questions, @jmmb.