genetically test many Asians BEFORE starting carbamazepine
You should now genetically test many Asians BEFORE starting carbamazepine...to predict their risk of a serious drug reaction.
This is big. It's the first time that genetic screening is recommended for a mainstream drug.
Carbamazepine (Tegretol, etc) now has a black box warning on this. It recommends that patients of Asian descent be screened for the HLA-B*1502 gene before starting therapy.