major depressive disorde
"After reading the reviews of Pristiq, I am amazed at the number of people that have had the DNA test and end up on Pristiq. When I took the DNA test, Pristiq was the "only" antidepressant found suitable for me. I have been on several antidepressants one being Prozac that worked very well for me for years with no noticeable side effects. I began to wonder why Prozac was in the list of antidepressants NOT to use when it had worked so well for me? 

I took the Pristiq for a few days and the side effects were so horrendous that I had to discontinue. The cost is also prohibitive for some people. My co-pay with insurance was about $300.  I have a very dim view of the drug and the DNA test that shows only Pristiq as suitable for my gene makeup!"