I know that this post is a bit dated, but I wanted to add to it.
I also did this DNA (GeneSight) test to determine which AD might work best for me because I really don't want to be a Lab Rat.. It was done with a swab in the mouth and took about a week for results.
The results were in 3 Tiers:
Red being Significant Gene-Drug Interaction which supposedly are the drugs that wouldn't work well for me. A few of the drugs that fell in this Tier for me were Celexa, Lexapro, Wellbutrin and Paxil.
Yellow being Moderate Gene-Drug Interaction which showed drugs like Prozac, Zoloft, Effexor as being so, so for me.
Green being Take As Directed. I guess that this is the mother load for me. It listed Prestiq, Fetzima, Pamelor, Viibryd, Desyrel and a few others as being my best match.
I decided to give Viibryd a try because of it's low occurrence of sexual sxs.
We shall see! I hope this works.