I don't think the technology is there yet. The tests can basically give you information about how quickly you metabolize the drugs you do or want to take. That can help with dosage information and supposedly the testing predicts what kind of antidepressant, say, might be more effective. Because effectiveness depends on so may different factors, however, the gene test isn't very good at predictions. It all sounds so much more modern than the old try it out and see approach but I don't think in the end it's really much better, if any at all. Personally I wouldn't bother.