Hmmmmm .....
In March, the F.D.A. issued guidelines to encourage drug companies to pursue personalized medicine, and the agency is adding information about genetic tests to the labels of a few drugs.
Since June, the label for Camptosar, a Pfizer drug for colon cancer, has advised doctors that a lower starting dose may be appropriate for the 10 percent of people who have a particular version of a gene called UGT1A1. The variant makes them more prone to a side effect, serious decline in white blood cells
PFANTASTIC --- GEO